FitCommit vs Spren: Which is Better?

Last updated: February 10, 2026

Honest, feature-by-feature comparison of FitCommit and Spren. See pricing, pros and cons, and which app is best for your fitness goals.

Quick Summary

FitCommit

AI-powered body composition tracking with realistic transformation previews. Know your exact body fat percentage, see your future body, track with AI food scan.

Free trial to start

Unlimited scans, cancel anytime

Spren

Clinically validated body scanning from smartphone

$12.99/mo or $120/year/month

$29.99 per scan option available

Feature Comparison

Feature	FitCommit	Spren
AI Body Scan	−Body fat % + lean mass	−Yes
AI Food Scan	−Photo scan	−No
Body Fat Tracking	✓AI scan from camera	✓AI scan from selfie
TDEE Calculation	✓From body composition	✓Not included
Macro Tracking	−Included	−Not included
Transformation Preview	✓AI-generated photo	×No
Food Database	−14M+ foods	−Not included

✓Better option

✓Also available

What Makes FitCommit Different

FitCommit is the only fitness app that combines AI body scanning, AI food camera, and transformation preview in one system. Scan your body, scan your food, see your future. Start with a free trial.

Try it free →

Try FitCommit and see the difference

AI body scan + food camera + transformation preview. Free trial.

Try FitCommit Free

Pros and Cons

Spren Pros

✓Clinically validated (2.27% MAE vs DEXA)
✓Peer-reviewed validation studies
✓B2B API available for gym partnerships
✓Available on multiple mobile platforms
✓Pennington Biomedical validation

Spren Cons

×More expensive than FitCommit ($120/year vs $48/year)
×No transformation projections
×No workout integration
×No nutrition or meal tracking
×Body comp only, not a complete system

Which App Should You Choose?

Choose Spren if:

→Users who prioritize clinical validation
→Gyms and fitness businesses (B2B API)
→Those wanting precise body composition only
→People outside the iPhone app audience

Choose FitCommit if:

→Budget-conscious users ($120/year vs $48/year)
→Users wanting transformation previews
→Those seeking an integrated nutrition + body comp system
→People who want workout programming

Pricing Breakdown

FitCommit

Free trial

Unlimited scans, cancel anytime

✓AI body scan (body fat %, lean mass)
✓AI food scan
✓Transformation preview (3/6/12 months)
✓TDEE from body composition
✓Macro tracking

Spren

$12.99/mo or $120/year/month

$29.99 per scan option available

Try FitCommit Free

AI body scan, transformation preview, and smart macro tracking. See your future body before you build it. Cancel anytime.

Start Free Trial

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