11 Best SAAS Tools for Startups in 2026 (Free and Paid, Compared)

Notion is the closest thing to one workspace for a startup: docs, wikis and project tracking live in one app instead of four subscriptions. Plus costs $12 a month per member on monthly billing, or $10 on annual billing, and it removes the free plan's block limit, adds unlimited file uploads and 30-day page history. Guests are free, so investors and contractors can read pages without a seat.

The catch is the AI packaging. Full Notion AI — the Agent, AI Meeting Notes and Enterprise Search — needs Business at $20 a member a month, so Plus buyers get only a limited trial. The free plan is limited too: blocks cap at 1,000 once a second member joins. Buy Notion when one workspace matters more than any single feature; buy a project tool when the work is mostly deadlines.

Slack is where startup teams spend their day, and Pro is the plan that makes it usable. It costs $8.75 a user a month on monthly billing, or $7.25 on annual billing, and it removes the free plan's 90-day message limit, so old decisions stay searchable. Pro also opens unlimited app integrations — more than 2,600 in the directory — and adds group huddles and basic AI summaries.

The cost to watch is headcount. Every person is a paid seat, so a 20-person team pays $175 a month on monthly billing, and contractors need seats too. The free plan is fine for a two-founder team, but the 90-day history means anything older than three months is gone. Buy Slack when the team already lives in chat; buy something quieter when the work is mostly documents.

HubSpot's free CRM is the best starting point in this list: two users, 1,000 contacts, deal pipelines and meeting links at $0. When the pipeline grows, Sales Hub Starter costs $20 a seat a month and adds email sequences, calling, email tracking and 500 Breeze AI credits a month. There is no onboarding fee on Starter, and sales, marketing and service data share one contact record.

Budget on the list price, not the promo. HubSpot runs a $7-a-seat offer for new customers, but it is time-limited, and the standard rate is $20. Professional jumps to $90 to $100 a seat a month plus a $1,500 onboarding fee, so the step from Starter to Professional is the expensive one. Buy HubSpot when the CRM will be the system of record; buy a lighter tool when the list is still a spreadsheet.

Google Workspace is the tool most startups buy first: business email on your own domain, plus Docs, Sheets, Slides, Meet and Drive on a single bill. Business Starter costs $8.40 a user a month on monthly billing, or $7 on a one-year commitment, and it includes 30 GB of pooled storage per user and the Gemini AI assistant in Gmail. A 14-day trial lets you test it first.

There is no free plan, so every user is a paid seat — including the shared inbox, which takes a license of its own. Starter caps at 300 users and Meet at 100 participants, and Gemini in Docs, Sheets and Meet needs Standard at $14 a user a month on annual billing. Buy Workspace when email and documents are the work; buy Microsoft 365 only if the team lives in Outlook.

Stripe is the only tool here with no monthly fee at all: you create an account free, and you pay 2.9% plus 30 cents only when a domestic card payment succeeds. Checkout and payment links are included with Payments at no extra charge, and in-person card payments cost 2.7% plus 5 cents. With no setup or monthly fees, Stripe is the cheapest way for a pre-revenue startup to be ready to take money.

The catch is that the fee scales with revenue, not with seats. At $10,000 a month in card sales, Stripe takes about $320, and international cards add 1.5% while currency conversion adds another 1%. Disputes cost $15 each, and Billing, Tax and advanced fraud tools are separate paid products. Buy Stripe when the business sells online; buy a simpler checkout when the fees would eat the margin.

Asana Starter is the project tool for teams that outgrow a board of cards. It costs $13.49 a user a month on monthly billing, or $10.99 on annual billing, and it adds Timeline and Gantt views, reporting dashboards and unlimited automations to the free plan's task lists. AI Teammates, Asana Dash and AI Studio are included on Starter, and guests are free, so clients can follow work without a seat.

The free Personal plan covers only two users, so a team of three pays from the first seat. Advanced jumps to $24.99 a user a month on annual billing, more than double Starter, and ten people cost $109.90 a month on annual billing. Buy Asana when projects have owners, deadlines and dependencies; buy Trello when a simple board is honestly enough.

Trello is the fastest tool in this list to set up: a board, some lists, some cards, and the team is working in ten minutes. The free plan covers up to 10 collaborators per Workspace, and Standard costs $6 a user a month on monthly billing, or $5 on annual billing. Standard adds unlimited boards and collaborators, AI features, card mirroring, Custom Fields and 1,000 automation runs a month.

The limits show up as the work gets bigger. Timeline, Calendar and Dashboard views need Premium at $10 a user a month on annual billing, and boards get hard to navigate past 30 or 40 cards. Reporting is thin next to Asana, and there is no real workload view. Buy Trello when the work is a simple pipeline of cards; buy Asana when projects need owners, dates and reports.

Canva Pro is how a startup without a designer ships a pitch deck, a social post and an ad in the same afternoon. It costs $18 a month on monthly billing, or $144 a year, and it adds Magic Studio AI tools, Brand Kit, 100 GB of storage and premium templates and stock assets to the free plan. Magic Resize adapts one design to every format, and the free plan covers everyday posts.

Pro covers one person, so a second designer needs the Business plan, priced per person, and the cost climbs with every seat. Many of the nicest templates and stock assets are paywalled on the free plan, and typography and vector editing are limited next to a design tool. Buy Canva when speed matters more than precision; buy a professional tool when the brand work needs precision.

Mailchimp Essentials is the entry point for a startup building a list it intends to keep. It costs $13 a month for 500 contacts and sends up to 10 times your contact limit a month, so 5,000 sends at the starting tier. Essentials includes 3 seats, 3 audiences, pre-built templates, email scheduling and 24/7 email and chat support, and you can remove Mailchimp branding.

The price follows the list, not the features. At 10,000 contacts the same plan costs far more than $13, and unsubscribed contacts still count toward billing unless you archive or delete them. Generative AI and A/B testing need Standard at $20 a month for 500 contacts, and automations on Essentials stop at four flow steps. Buy Mailchimp when email is a real channel; buy a cheaper sender when the list rarely gets mailed.

Xero Early is the accounting pick for a startup that wants proper books without per-seat pricing. It costs $27 a month, with no annual billing option, and every plan includes unlimited users, so the whole founding team can touch the books for one flat price. Early covers quotes, 20 invoices and 5 bills a month, with bank reconciliation and Hubdoc receipt capture included.

The cap to watch is the invoice count. Most active startups pass 20 invoices a month quickly, and the next step is Growing at $59 a month. Multi-currency, projects and expense claims wait for Established at $97 a month, and US payroll runs through Gusto at $36 a month plus $6 per person. Buy Xero when the books need to be real from day one; buy Wave or Zoho Books when the budget is $0.

Calendly Standard ends the back-and-forth of booking a meeting. It costs $12 a seat a month on monthly billing, or $10 on annual billing, and it unlocks unlimited event types, up to six calendar connections, automations and reminders, and HubSpot and Mailchimp connections. Clients can also pay at booking through Stripe and PayPal, which suits founders who charge for consultations.

The free plan allows only one event type and one calendar connection, so a founder who needs a 15-minute intro call and a 30-minute demo needs Standard. Round-robin and routing forms wait for Teams at $16 a seat a month on annual billing, and the AI notetaker and Callie need the Standard Plus add-on, priced on inquiry. Buy Calendly when booking is a daily job; buy a free form when meetings are rare.