devlo vs Diffblue Cover vs Functionize vs Windsurf

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

Your tool
devlo
vs
Competitor 1
Diffblue Cover
Competitor 2
Functionize
Competitor 3
Windsurf
Compare
4 tools · best value per row highlighted
Your tool devlo
devlo.ai
Engineering teams get a browser-based system that handles code from multiple angles
Remove
Competitor Diffblue Cover
diffblue.com
Diffblue Cover, now offered as the Diffblue Testing Agent, generates, verifies and fixes unit tests autonomously across enterprise codebases.
Make main Remove
Competitor Functionize
functionize.com
Functionize is an agentic quality platform whose Studio product builds, runs and maintains tests against your live application.
Make main Remove
Competitor Windsurf
windsurf.com
Windsurf, which now appears on the web as Devin Desktop, is a desktop code editor that doubles as a control room for coding agents.
Make main Remove
Traffic estimated monthly website traffic
Monthly visits
—
—
—
29.6Kvisits/mo
MoM change
▼ 70.3%
—
—
▲ 7.8%
6-month growth
—
—
—
+122.1%
Global rank web
#8,880,689
—
—
#1,172,623
Avg. last 3 months
537
—
—
26.9K
Bounce rate lower is better
0%
—
—
50%
Pages / visit
—
—
—
1.3
Visit duration
—
—
—
13s
Traffic sources
—
—
—
—
devloDiffblue CoverFunctionizeWindsurf
07.4K14.8K22.2K29.6Kdevlo · 7.9Kdevlo · 5.4Kdevlo · 1.6KWindsurf · 16KWindsurf · 24.3KWindsurf · 15.7KWindsurf · 13.3KWindsurf · 25.4KWindsurf · 29.3KWindsurf · 23.6KWindsurf · 27.5KWindsurf · 29.6K1K10K100Kdevlo · 7.9Kdevlo · 5.4Kdevlo · 1.6KWindsurf · 16KWindsurf · 24.3KWindsurf · 15.7KWindsurf · 13.3KWindsurf · 25.4KWindsurf · 29.3KWindsurf · 23.6KWindsurf · 27.5KWindsurf · 29.6KNov '25DecJan '26FebMarAprMayJunJul
Pricing
Model
Freemium
Paid
Freemium
Freemium
Starting price
$19per month · free tier available
$1,500per month
$20per month · free tier available
$20per month · free tier available
Free tier
–
Free trial
–
–
–
API access
–
–
–
–
Plans
—
Starter package $1,500Enterprise Custom
Free FreeGrowth $20/moScale $100/moEnterprise Custom
Free FreePro $20/moMax $200/moTeams $80/mo
Capabilities input → output
Input
CodeText
Code
TextWeb pages
CodeText
Output
AppsCode
Code
Data
Code
Skill level
Advanced
Advanced
Advanced
Advanced
Categories
Development & CodeProductivity & OfficeAI AgentAI App Builder+2 more
Development & CodeAI Testing
Development & CodeAI Testing
Development & CodeProductivity & OfficeAI AgentAI Coding Assistant
Tasks what each tool can do · 1 shared · core   partial
Tasks covered
14
9
7
8
Agents
GitHub pull requests
–
Coding
–
–
Test automation
–
–
Test creation
–
–
Test generation
–
–
Testing
–
–
Code reviews
–
–
Debugging
–
–
Test cases
–
–
Agent management
–
–
–
Code autocompletion
–
–
–
Teams performance analytics
–
–
–
Unit tests
–
–
–
Agent creation
–
–
–
Code testing
–
–
–
Developer tools
–
–
–
Development
–
–
–
GitHub
–
–
–
Jira tickets
–
–
–
Code quality
–
–
–
Codebase q a
–
–
–
Frontend development
–
–
–
No-code
–
–
–
Website testing
–
–
–
Community on aitoolstime
Rating
no ratings yet
no ratings yet
no ratings yet
no ratings yet
Upvotes
▲ 1
▲ 0
▲ 0
▲ 1
Saves
0
0
0
0
Reviews
0
0
0
0
Prompts
0
0
0
0
Verified listing
–
–
–
–

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.