kitio.aiTestsigma vs Functionize
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Testsigma starts at See pricing page and Functionize starts at $20/mo. Check both pricing pages for current plans.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Plain-English tests
- Testsigma Copilot
- Real device cloud
- Auto-healing scripts
- API testing
- Agentic Studio
- Self-healing tests
- Failure diagnosis
- Salesforce testing
- Parallel cloud runs
| Feature | Testsigma | Functionize |
|---|---|---|
| Best for | Unified agentic test automation for web, mobile and APIs | Agentic test automation with AI agents that build and heal tests |
| Category | Coding | Coding |
| Pricing model | Free trial | Freemium |
| Starting price | See pricing page | $20/mo |
| Free plan | No, trial available | Yes |
| Made by | Testsigma | Functionize |
| Based in | – | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Testsigma starts at See pricing page and Functionize starts at $20/mo. Check both pricing pages for current plans.
Free plan
Cheapest paid plan
Top plan
Free trial
4 plans
Free
Free
- 800,000 credits/month
- All agent capabilities
- 5 parallel runs
- Team workspace
Growth
$20/mo
- 3,200,000 credits/month
- SSO and role-based access
- Buy more credits anytime
Scale
$100/mo
- 20,000,000 credits/month
- 10 parallel runs
Enterprise
Contact sales
- Custom credits per month
- Multi-team management
- Invoice/PO billing, 12-month minimum
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Testsigma
- One tool for web, mobile and API
- Large device cloud
- Readable test steps
- Pricing not public
- Enterprise features cost more
Functionize
- Free tier to start
- Explains test failures
- Enterprise app support
- Team plans priced per user
- Less known among startups
Which one should you choose?
Choose Testsigma if you want:
- One tool for web, mobile and API
- Large device cloud
- Readable test steps
Watch out: pricing not public.
Choose Functionize if you want:
- Free tier to start
- Explains test failures
- Enterprise app support
Watch out: team plans priced per user.
Testsigma vs Functionize FAQ
What is the difference between Testsigma and Functionize?
Testsigma: Unified agentic test automation for web, mobile and APIs. Functionize: Agentic test automation with AI agents that build and heal tests. Both are coding tools.
Is Testsigma or Functionize cheaper?
Testsigma starts at See pricing page and Functionize starts at $20/mo. Check both pricing pages for current plans.
Do Testsigma and Functionize have free plans?
Testsigma: No, trial available. Functionize: Yes.
Who makes Testsigma?
Testsigma is made by Testsigma.
Who makes Functionize?
Functionize is made by Functionize, based in United States.
Which should I choose, Testsigma or Functionize?
Choose Testsigma if you value one tool for web, mobile and api and large device cloud. Choose Functionize if you value free tier to start and explains test failures.