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★ Winner
Clerk
Developer Tools
★ 4.9
rating
$25/mo
starts at
–
tier
VS
Fly.io
Developer Tools
★ 4.2
rating
~$3-5/mo (pay-as-you-go)
starts at
Quick verdict
Clerk wins for react and next.js developers who want authentication with th.
Clerk has a 4.9 rating vs 4.2 for Fly.io. Fly.io is the better pick if you need developers building globally distributed applications that need low latency worl.
Performance overview
Clerk
Fly.io
Overall
4.94.2
Ease of use
4.43.9
Value for money
4.94.0
Features
Side-by-side comparison
Choose based on your needs
Choose Clerk if...
Best for
React and Next.js developers who want authentication with the least possible setup
Fastest auth setup for React
Beautiful pre-built components
Choose Fly.io if...
Best for
Developers building globally distributed applications that need low latency worldwide.
Run full applications in 30+ global regions
Docker-based — full control over your runtime