Functionize vs Runcell vs Testim vs Atai - Automated Testing AI

Which one fits you in 2026? Traffic, pricing, input → output, tasks and community side by side.

Your tool
Functionize
vs
Competitor 1
Runcell
Competitor 2
Testim
Competitor 3
Atai - Automated Testing AI
Compare
4 tools · best value per row highlighted
Your tool Functionize
functionize.com
Functionize is an agentic quality platform whose Studio product builds, runs and maintains tests against your live application.
Competitor Runcell
runcell.dev
Competitor Testim
testim.io
Testim is an automated testing platform from Tricentis for fast authoring of stable, AI-powered tests.
Competitor Atai - Automated Testing AI
automatedtesting.ai
Atai uses Vision AI to generate automated test cases for web applications by interpreting natural language prompts
Traffic estimated monthly website traffic
Monthly visits
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176.9Kvisits/mo
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MoM change
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▲ 4.1%
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6-month growth
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+13.2%
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Global rank web
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#279,476
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Avg. last 3 months
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168.7K
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Bounce rate lower is better
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45%
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0%
Pages / visit
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1.8
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Visit duration
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45s
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Traffic sources
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● Direct 73% · ● Referral 27%
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FunctionizeRuncellTestimAtai - Automated Testing AI
044.2K88.4K132.7K176.9KRuncell · 52KRuncell · 99.5KRuncell · 144.1KRuncell · 154KRuncell · 156.3KRuncell · 140.4KRuncell · 170.3KRuncell · 159.2KRuncell · 170KRuncell · 176.9K10K100K1MRuncell · 52KRuncell · 99.5KRuncell · 144.1KRuncell · 154KRuncell · 156.3KRuncell · 140.4KRuncell · 170.3KRuncell · 159.2KRuncell · 170KRuncell · 176.9KNov '25DecJan '26FebMarAprMayJunJulAug
Pricing
Model
Freemium
Freemium
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Free Trial
Starting price
$20per month · free tier available
$20per month · free tier available
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$19per month
Free tier
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Free trial
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API access
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Plans
Free FreeGrowth $20/moScale $100/moEnterprise Custom
Hobby FreePro $20/moPro+ $60/moUltra $200/mo+1 more
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Download For Life $99/one-timeCloud Subscription $19/mo
Capabilities input → output
Input
TextWeb pages
DataText
Text
TextWeb pages
Output
Data
CodeData
Code
Code
Skill level
Advanced
Advanced
Intermediate
Advanced
Categories
Tasks what each tool can do · 0 shared · core   partial
Tasks covered
7
6
11
10
Test automation
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Testing
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Test creation
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Website testing
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Agents
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Test generation
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UI testing
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Test cases
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Test management
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Coding
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Data analysis
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Jupyter notebooks
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Browser testing
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Code explanations
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Python code debugging
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Salesforce
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Data science
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No-code
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Root cause analysis
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Selenium testing
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Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 0
▲ 0
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▲ 0
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
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Traffic figures are third-party estimates for the tool's own domain; tools sharing a domain with a bigger product are not counted. Pricing is captured from each tool's site and may lag.