Side by side
FitX vs Flex AI
Compare what each tool does, what it costs, and how it fits your workflow.
Designed for
Personalized fitness coaching and workout tracking.
Build Muscle and Lose Weight Fast
Primary task
Fitness
Fitness
Pricing
Free
Freemium · Free + from $9.99/mo
Pricing details
Free
Free + from $9.99/mo
Billing cycle
Not documented
Monthly
API access
Not documented
Not documented
Platforms
iOS
Web, iOS
Integrations
Make
Make
Source rating
No rating recorded
5.0 / 5 · 3 ratings
Catalog views
2.8k
7k
Estimated monthly traffic
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Catalog imported
30 Aug 2026
30 Aug 2026
Listed strengths
- Personalized workout plans
- Exercise tracking feature
- Virtual coaching
- Real-time feedback on form
- Workout progress monitoring
No pros listed yet
Listed limitations
- Available only on iOS
- No Android support
- Auto sign out issue
- Requires iOS 15.0 or later
- No multi-language support
No limitations recorded; this does not mean none exist.