Strong
Best for: barbell training with a few fixed routines, such as 5×5, and a clean interface.
Strong is made by Strong Fitness PTE Limited in Singapore. It's a minimal strength training log; per its privacy policy, data is stored on servers in the United States and other countries.
Strengths
- No ads, unlimited workouts for free
- RPE with RIR conversion, set tags, supersets and circuits
- CSV export that other apps can read
- Available in German; lifetime purchase available
- Apple Watch and Apple Health
Limitations
- Without PRO, max 3 custom routines; plate calculator and body part measurements need PRO
- No web app
- Exported files can't be imported back into Strong, per its help center
- Servers in the US and other countries
Price: Free with limits. Per its US description, PRO costs $4.99 a month or $29.99 a year. The in-app purchase list shows several prices (for example $23.99 and $29.99 a year), so it doesn't tell you which applies today. “Strong PRO Forever”: $79.99 or $99.99.
Ratings: App Store US, Oct 25, 2026: 4.86 (108,535 ratings). App Store Germany: 4.82 (10,134). Google Play US: 4.3 (about 42,800 reviews).
