Digital Marketing & Ads

8 Best Software to Boost Sales with SMS Marketing in 2026, Compared

Compare the 8 best software to boost sales with sms marketing on price, free plans, message credits and AI features, with every price checked November 5, 2026.

Shamim Mia, Founder, SerpAstraLast verified November 5, 202612 min read

We compare pricing pages, documentation and public reviews. We never accept payment for rankings.

Key takeaways

  • SlickText is the best all-rounder at $29/month with a 4.8/5 G2 rating; EZ Texting is the cheapest dedicated SMS tool at $25/month, and Klaviyo is the only one with SMS credits on a free plan.
  • The single most important buying factor is what a message actually costs you: credits, carrier fees, 10DLC registration and the number type decide the real bill, not the headline price.
  • Attentive is the only tool here without a published price — everything else starts at $20–$49 a month — and MMS costs 2–3 credits per message on most tools.
  • Start with a trial and one real campaign before you pay for a year: 500 texts a month costs $25–$49 on the entry plans here.
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Quick comparison

Starting prices checked November 5, 2026
ToolBest forStarting priceFree plan
SlickTextSmall businesses that want every feature on every plan and the highest-rated support in SMS marketing$29/moNo (14-day trial)
SimpleTextingSmall businesses that want simple credit pricing with all core features and unlimited keywords from day one$29/moNo (14-day trial)
EZ TextingSmall businesses that want guided 10DLC registration and AI writing tools included at the entry price$25/moNo (14-day trial)
KlaviyoEcommerce stores that want email and SMS on one customer profile, with SMS credits on the free plan$20/moYes (free plan)
TextedlyGrowing businesses that want a low entry price with AI voice agents, text-to-pay and reviews in one platform$29/moNo (14-day trial)
SalesmsgSales and support teams that want texting and calling inside HubSpot or Salesforce, with a shared inbox$25/moNo (14-day trial)
PostscriptShopify brands that want SMS built for ecommerce, with usage billing and no profile fees$49/mo minNo (60-day trial)
AttentiveLarger ecommerce brands that want a managed SMS program with AI journeys and two-tap sign-upCustom quoteNo (free trial)

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The best software to boost sales with sms marketing

#1

SlickText

Best for: Small businesses that want every feature on every plan and the highest-rated support in SMS marketing

Visit slicktext.com
Starting price$29/month (500 message credits; carrier fees extra)
Free planNo — 14-day free trial

SlickText is the straightforward choice for a small business that wants to start texting this week: one plan, one price, and every feature switched on from the first month. The $29 entry plan buys 500 message credits, unlimited contacts and unlimited users, so the bill grows only when the sending volume grows. Incoming messages are free, credits roll over, and the platform includes automations, segmentation and list-growth tools without an upgrade.

The trade-off is the extras. Carrier fees and 10DLC registration pass through on top of the $29, and RCS messaging needs a $500 one-time setup fee. But the review record is the strongest here — 4.8 out of 5 on G2 from 1,945 reviews, with support rated 9.6 out of 10 — and the 14-day trial needs no credit card. Pick SlickText when you want the safest, best-reviewed start.

What we like

  • Every plan includes all features — automations, segmentation, list-growth tools and analytics
  • Unlimited contacts and unlimited users on every plan, with free incoming messages
  • Highest G2 rating in this list at 4.8/5 from 1,945 reviews, with support rated 9.6/10
  • Message credits roll over, and annual billing gives two months free

Watch out for

  • Carrier fees and 10DLC registration pass through on top of the plan price
  • No free plan — only a 14-day free trial
  • RCS messaging needs a $500 one-time setup fee plus a $200 annual maintenance fee
#2

SimpleTexting

Best for: Small businesses that want simple credit pricing with all core features and unlimited keywords from day one

Visit simpletexting.com
Starting price$29/month (toll-free number, 500 credits; local 10DLC number $39/month)
Free planNo — 14-day free trial

SimpleTexting sells one plan that scales by credits, not by features, which makes the buying decision easy: pick how many texts you send and every core feature comes with it. The entry tier costs $29 a month for a toll-free number and 500 credits, with unlimited contacts and unlimited keywords on every plan. Unused credits roll over to the next month, incoming SMS messages are free, and three user seats are included.

Watch the number type. A local 10DLC number costs $39 a month, not $29, and advanced automations are a paid add-on until the $549-a-month tier. Extra team members cost $20 a month each. If you are happy texting from a toll-free number and want every feature without a tier ladder, SimpleTexting is the cleanest buy in this list.

What we like

  • One simple plan: every credit tier includes all core features and unlimited keywords
  • Unused credits roll over to the next month instead of expiring
  • Three user seats included, with 7-day-a-week support on every plan
  • 14-day free trial with no credit card required to start

Watch out for

  • A local 10DLC number costs $39/month, not $29 — the $29 price is toll-free only
  • Advanced automations are a paid add-on on plans under $549/month
  • Extra team members cost $20/month each beyond the three included seats
#3

EZ Texting

Best for: Small businesses that want guided 10DLC registration and AI writing tools included at the entry price

Visit eztexting.com
Starting price$25/month (Launch, billed monthly; $20/month billed annually)
Free planNo — 14-day free trial

EZ Texting is the cheapest dedicated SMS tool in this list, and it does not strip the entry plan bare to get there. Launch costs $25 a month, or $20 billed annually, and includes 500 credits, guided 10DLC registration, API access and webhooks. AI Compose and AI Reply — the tools that draft replies and handle inbound texts — are included at $25, where rivals charge extra or hold them for higher tiers.

The catch is the credit ceiling. Every plan includes 500 credits a month, so a growing sender pays for overage credits at $0.04 each rather than moving to a bigger allowance. Launch also caps at 500 contacts and adds a $5 monthly telecom fee. Pick EZ Texting when the list is small and you want AI help and compliance guidance at the lowest entry price.

What we like

  • Cheapest dedicated SMS entry here at $25/month, or $20/month billed annually
  • AI Compose and AI Reply are included on the $25 Launch plan, not upsold
  • Guided 10DLC registration is included, with API access and webhooks from $25/month
  • Incoming messages are free on every plan

Watch out for

  • Every plan includes only 500 credits — the credit allowance does not grow as plans get dearer
  • A $5/month telecom fee applies on the Launch plan
  • Support is limited on Launch; live help waits for higher tiers
#4

Klaviyo

Best for: Ecommerce stores that want email and SMS on one customer profile, with SMS credits on the free plan

Visit klaviyo.com
Starting price$20/month (paid email plan; SMS billed in credits on top)
Free planYes — free plan (250 profiles, 150 SMS credits)

Klaviyo is the only tool here where you can send SMS without paying anything: the free plan covers 250 active profiles, 500 emails and 150 SMS credits a month. That makes it the cheapest way to test whether texting lifts sales for your store. Email, SMS, WhatsApp and push all run on one customer profile, and the Shopify integration is the deepest in this list, so a text can fire the moment a shopper abandons a cart.

Read the price carefully. The $20 starting price is the email plan; SMS is billed in credits on top, and the email-plus-mobile bundle starts at $45 a month. Paid plans also scale with active profiles, so a growing list pushes the bill up fast. Choose Klaviyo when the store already runs on Shopify and you want one profile for every channel.

What we like

  • The only free plan here that includes SMS sends — 150 SMS credits a month at $0
  • Email, SMS, WhatsApp and push run on one customer profile with deep Shopify integration
  • Multi-step flows and A/B testing are included on every plan, including the free one
  • Strong segmentation and automation that tie SMS sends to purchase behaviour

Watch out for

  • SMS is billed in credits on top of the email plan — the $20 price buys email, not messages
  • Email + mobile messages bundle starts at $45/month, so real SMS volume costs more than $20
  • Paid plans scale steeply with active profiles, and support is the most common reviewer complaint
#5

Textedly

Best for: Growing businesses that want a low entry price with AI voice agents, text-to-pay and reviews in one platform

Visit textedly.com
Starting price$29/month (500 text messages)
Free planNo — 14-day free trial

Textedly packs the most extras into its $29 entry plan: two-way SMS, MMS, drip campaigns, scheduling and mass texting all come standard, and most plans add AI Voice Agents, text-to-pay and Google Reviews tools. The entry package includes both a toll-free and a local 10DLC number, and the first 10DLC registration fee is covered. Annual billing adds about 20% more credits at the same price.

The limits are small but real. The entry plan allows one keyword and one user seat, and an $8 monthly telecom surcharge sits on top of the $29. Some older pages on the vendor's own site still show $26 a month, but the current entry price is $29. Pick Textedly when you want the widest feature set for the money and can live with one seat.

What we like

  • Most features on every plan, including two-way SMS, MMS, drip campaigns and scheduling
  • AI Voice Agents, text-to-pay and Google Reviews tools included on most plans
  • Both a toll-free and a local 10DLC number are included in the entry package
  • Annual billing adds about 20% more credits at the same price

Watch out for

  • Only one keyword and one user seat on the entry plan — more cost extra
  • An $8/month telecom surcharge sits on top of the plan price
  • Some older vendor pages still show $26/month; the current entry price is $29
#6

Salesmsg

Best for: Sales and support teams that want texting and calling inside HubSpot or Salesforce, with a shared inbox

Visit salesmessage.com
Starting price$25/month (Basic, 500 credits, 1 seat and 1 number)
Free planNo — 14-day free trial

Salesmsg is built for revenue teams, not marketers: texting and calling live inside HubSpot or Salesforce, so every conversation lands on the contact record and triggers CRM workflows. The $25 Basic plan includes 500 credits, a shared inbox, two-way SMS and MMS, mass texting and built-in calling, with unlimited contacts. AI agents can qualify leads and book meetings straight from a text thread.

The price is per seat, not per team. The $25 covers one seat and one number, and each extra teammate costs $10 a month. Calling also spends the same credits as texting, so a team that calls a lot will burn through the allowance. Pick Salesmsg when the CRM is where the selling happens and the team wants one inbox for texts and calls.

What we like

  • Native two-way texting inside HubSpot and Salesforce, so texts land on the contact record
  • Built-in calling and a power dialer in the same inbox as SMS and MMS
  • AI agents that qualify leads and book meetings from text conversations
  • Unlimited contacts on every plan, with a free local or toll-free number included

Watch out for

  • The $25 price covers exactly one seat and one number — extra seats cost $10/month each
  • Calling eats the same credits as texting, so heavy callers burn through allowances fast
  • Premium support and a dedicated account manager wait for the 10,000-message tier
#7

Postscript

Best for: Shopify brands that want SMS built for ecommerce, with usage billing and no profile fees

Visit postscript.io
Starting price$49/month minimum spend (Starter, usage-based billing)
Free planNo — 60-day free trial

Postscript is SMS built for Shopify stores, and it shows in the billing: there are no profile fees, so a growing subscriber list never raises the price by itself. You pay for the messages you send, with a $49 monthly minimum on the Starter plan, and carrier fees pass through at cost on their own line. The native CRM, pre-built capture campaigns and nurture streams are included, and the Agentic Context Platform comes with every plan.

The minimum is the thing to understand. A quiet month still costs $49, so a store sending very few texts pays more per message than on a credit plan. Postscript is also Shopify-only, with no native support for other platforms. Choose Postscript when the store runs on Shopify and the list is growing fast enough that profile fees would hurt.

What we like

  • Built for Shopify: native CRM, pre-built capture campaigns and nurture streams included
  • No profile fees — you pay to message, not to store subscriber data
  • The Agentic Context Platform is included on every plan at no extra cost
  • 60-day free trial with a $100 usage credit, the longest trial in this list

Watch out for

  • The $49 is a monthly minimum spend, not a flat fee — low-volume months still cost $49
  • Shopify-only focus: no native support for other ecommerce platforms
  • Growth and Professional plans add recurring fees on top of usage charges
#8

Attentive

Best for: Larger ecommerce brands that want a managed SMS program with AI journeys and two-tap sign-up

Visit attentive.com
Starting priceCustom quote (usage-based, priced by message volume and list size)
Free planNo — free trial available

Attentive is the enterprise end of this list: a managed SMS program for larger ecommerce brands, built around list growth and conversational messaging. Its two-tap sign-up units capture email and SMS opt-ins from a single form, and Two-Way Journeys hold real back-and-forth conversations with subscribers — asking about preferences, recommending products, and closing the sale inside the thread. SMS, email, RCS and push all run on the one platform.

There is no published price. Every plan is custom-quoted by message volume, subscriber list size and the channels you use, and the premium AI tools are add-ons. Attentive suits brands with a list large enough to justify a sales-led contract and a team that wants the vendor to run the program with them. Small stores should start with one of the priced tools above.

What we like

  • Two-tap sign-up units that grow email and SMS lists from one form
  • Two-Way Journeys that hold real conversations with subscribers, not just blasts
  • Patented list-growth tools used by large retail brands, with 97% open rates claimed
  • SMS, email, RCS and push in one platform with usage-based billing

Watch out for

  • No published starting price — every quote is custom and sales-led
  • Premium AI tools are add-ons, not included in the base plan
  • Built for larger brands; small lists will find the minimums hard to justify

The best software to boost sales with sms marketing turns a phone number into a sales channel: short, timely texts that bring shoppers back to checkout. We ranked the eight tools below by fit for the most common buyer — a small business that wants more repeat sales without hiring a developer or a compliance lawyer — and every price was checked on the vendor's own pricing page on November 5, 2026.

How to choose the best software to boost sales with sms marketing

  • Count the credits, not the headline price. Most tools sell message credits: one SMS costs one credit, one MMS costs two or three. A 500-credit plan covers 500 plain texts but only about 170 photo messages.
  • Check the number type. A toll-free number is cheaper — SimpleTexting charges $29 a month for toll-free and $39 for a local 10DLC number — but a local number can look more trustworthy to customers.
  • Add the fees before you compare. Carrier fees, telecom surcharges and 10DLC registration pass through on most tools here. EZ Texting adds $5 a month on Launch; Textedly adds $8.
  • Match the tool to where you sell. Shopify stores get the most from Klaviyo or Postscript; sales teams living in HubSpot or Salesforce get the most from Salesmsg.
  • Confirm the compliance help. US business texting needs A2P 10DLC registration and written opt-in consent. The tools that guide you through registration save days of setup and blocked messages.

SMS is one channel in your stack, not the whole stack. If the store also needs to be found on Google, our monthly SEO service handles the visibility side. And when a text campaign links back to a product page, tag every link with the free UTM builder tool so you can see in analytics exactly which campaign drove each sale.

Whatever you shortlist, run one real campaign on a trial before you pay. The trials in this list run 14 to 60 days, which is long enough to send a genuine offer to your real list and measure what comes back. Check two things in the trial: that your messages arrive promptly and that the revenue from the campaign covers the cost of the credits. Every tool here lets you start without a contract, so there is no reason to buy a year before a single campaign has proved itself.

Bar chart of starting prices billed monthly: Klaviyo $20, EZ Texting $25, Salesmsg $25, SlickText $29, SimpleTexting $29, Textedly $29, Postscript $49
Starting prices, billed monthly. Attentive publishes no starting price, so it is not on the chart. Annual billing is lower for most tools — the comparison table at the top shows the annual figure.

SMS marketing software pricing: what you will actually pay

Take a small business sending four campaigns a month to 125 subscribers — 500 plain texts a month, the entry allowance on most tools here. On list prices, that costs $25 a month on EZ Texting or Salesmsg, $29 on SlickText, SimpleTexting or Textedly, and a $49 minimum on Postscript. Three of those numbers need adjusting before they are real: EZ Texting adds a $5 monthly telecom fee, Textedly adds an $8 telecom surcharge, and SimpleTexting costs $39 if you want a local 10DLC number instead of a toll-free one.

Over a year, that is $300 on Salesmsg, $348 on SlickText or Textedly before surcharges, $360 on EZ Texting with its telecom fee, $444 on Textedly with its surcharge, $468 on SimpleTexting with a local number, and $588 on Postscript's minimum spend. Klaviyo is the outlier: its free plan covers 150 of the 500 texts, and the rest need a paid email plan from $20 a month plus SMS credits on top, so the true cost depends on how many credits you buy.

The same 500 texts cost $300 a year at the cheap end and $588 at the dear end — and that gap comes entirely from fees and minimums, not from features. MMS widens it further: a photo message costs two credits on Salesmsg and three on SlickText and SimpleTexting, so 500 photo messages would need 1,000–1,500 credits. If your campaigns carry product photos, price the MMS rate, not the SMS rate. If you run an ecommerce store rather than a local business, the email side matters too — see our guide to the best email and SMS marketing software.

Matrix showing what each entry plan includes: daily updates, free plan, AI features and white-label
What the entry plan includes, checked November 5, 2026. A dash means the feature is not included on the entry plan.

Know the difference: a message credit is not always one message

The biggest confusion in this category is the credit. Most SMS tools bill by message credits, not by messages, and the two are not the same thing. One plain SMS costs one credit, but one MMS — a message with a photo — costs two credits on Salesmsg and three credits on SlickText, SimpleTexting and Postscript. A plan that looks like it covers 500 messages may only cover 170 photo messages, and the overage credits that follow cost 3–5 cents each.

There is a second, quieter confusion: the headline price is rarely the whole bill. Carrier fees pass through at cost on SlickText and Postscript, EZ Texting adds a $5 telecom fee on Launch, Textedly adds an $8 surcharge, and a local 10DLC number costs $10 a month more than a toll-free number on SimpleTexting. None of these appear in the headline price, but all of them appear on the invoice.

A third distinction is the billing model itself. Credit plans (SlickText, SimpleTexting, EZ Texting, Textedly, Salesmsg) charge a flat monthly fee for a fixed allowance. Usage billing (Postscript, Attentive) charges for what you send, with a monthly minimum on Postscript. Klaviyo is a hybrid: a subscription for the email plan, then credits for SMS on top. Credit plans suit steady senders; usage billing suits stores whose volume swings with the seasons.

Quick comparison: tool type by need

BuyerBest pickWhy
Small business on a budgetEZ TextingCheapest dedicated SMS entry at $25/month, with AI writing included
Best-reviewed all-rounderSlickText4.8/5 on G2, every feature on every plan, from $29/month
Shopify storeKlaviyoFree plan includes 150 SMS credits; email and SMS share one profile
Sales team living in a CRMSalesmsgNative HubSpot and Salesforce texting from $25/month
Shopify brand with a fast-growing listPostscriptNo profile fees, usage billing, $49 monthly minimum
Larger brand, managed programAttentiveAI journeys and two-tap sign-up, priced by quote

Mistakes to avoid

  • Budgeting on the headline price. Carrier fees, telecom surcharges and 10DLC registration sit outside the prices in this list. Add $5–$10 a month for fees and $10 for a local number before you compare tools.
  • Pricing MMS at the SMS rate. A photo message costs two or three credits, not one. If your campaigns carry product photos, a 500-credit plan only covers 170–250 photo messages.
  • Texting without written opt-in consent. US law requires written consent before marketing texts, and carriers filter unregistered traffic. Get the opt-in and the 10DLC registration sorted before the first campaign.
  • Buying on the free plan, then finding the cap. Klaviyo's free plan covers 150 SMS credits a month. A store sending four campaigns to 200 subscribers needs 800 credits and a paid plan.
  • Ignoring the contact cap. EZ Texting's Launch plan covers 500 contacts, and SimpleTexting's entry plan covers one user seat. The cap you hit first is your real starting price.

How we chose

We checked each vendor's own pricing page on November 5, 2026 and recorded the starting price exactly as shown, including the annual-billing figure where the page lists one, and we ranked the tools by fit for the most common buyer — a small business that wants SMS to bring repeat sales — not by brand size. Attentive publishes no starting price, so it is listed as a custom quote. Textedly's pricing page did not load on November 5, 2026, so its $29 entry price is taken from the vendor's own site pages crawled the same day. This list carries no rating for Attentive because the G2 review page copy available to us was about a year old, and we would rather show no rating than a stale one. No vendor paid for a place in this list, and none of the links here are affiliate links.

What to do next

Start with the free plan or trial of your top pick and send one real campaign to your actual list. Give the campaign its own discount code so you can measure the revenue it brings back, and check that the cost of the credits stays well below that revenue. If the numbers work, move to annual billing for the discount; if they do not, the trial has cost you nothing. Once your tools are in place, find out what's holding your rankings back.

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Sources we checked (15)
Shamim

Shamim

Founder of SerpAstra

A full-stack SEO and digital marketer who spends most days on Local SEO for dental practices, AI search visibility and lead generation.

Frequently asked questions

What is the best software to boost sales with sms marketing?

SlickText is the best all-rounder: $29/month, every feature on every plan, and a 4.8/5 G2 rating from 1,945 reviews. Klaviyo is the best pick for Shopify stores because email and SMS share one customer profile. EZ Texting is the cheapest dedicated option at $25/month.

How much does SMS marketing software cost?

Entry plans in this list cost $20–$49 a month. Dedicated SMS tools start at $25–$29 a month for 500 messages, and Postscript charges a $49 monthly minimum on usage billing. Attentive is custom-quoted. Carrier fees, 10DLC registration and telecom surcharges sit on top of most headline prices.

Is there free SMS marketing software?

Only Klaviyo offers a genuinely free plan with SMS: 150 SMS credits a month for up to 250 active profiles. Every other tool here offers a free trial instead — 14 days on most tools, 60 days on Postscript. Free trials are long enough to run one real campaign before you pay.

What is a message credit, and how many do I need?

A credit is the unit most SMS tools bill by. One plain SMS usually costs one credit, while one MMS costs two or three credits, so a photo message is two to three times dearer. A store sending four campaigns a month to 125 subscribers uses 500 credits — the entry allowance on most tools here.

Do I need 10DLC registration to send marketing texts?

Yes, for business texting in the US. A2P 10DLC registration tells carriers your messages are legitimate, and unregistered traffic gets filtered or blocked. EZ Texting, SlickText and Textedly all include registration help; SimpleTexting charges $10 a month for a local 10DLC number.

Can SMS marketing work without email marketing?

Yes. A dedicated tool like SlickText or EZ Texting runs SMS on its own, and many small businesses start there. But pairing the two usually earns more: Klaviyo and Attentive run email and SMS on one profile, so a shopper who ignores an email can get the same offer by text.

How do I measure whether SMS is boosting sales?

Track revenue per campaign, not just opens. Give each campaign its own discount code or a tagged link so sales can be traced back to the text, and compare the revenue against the cost of the credits, carrier fees and plan. A campaign that earns less than it costs should be changed or stopped.

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