Comparison

Flexion vs FormSight

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Flexion

Analyze your workout form with AI-powered video feedback and chat with a virtual coach for personalized training and nutrition advice. Track progress, log meals, and prevent injuries with detailed insights.

Highlights
  • AI video form analysis
  • Conversational workout logging
  • Nutrition tracking
  • Personalized coaching
  • Progress insights
  • Multiple coach personalities
Features
Read full description

Flexion - AI Personal Trainer. Your eyes in the gym. Meet your new workout partner. Flexion combines computer vision powered form analysis with a coach you can actually talk to—helping you train smarter, stay consistent, and see results faster. TRAIN WITH CONFIDENCE Upload a video of any lift and get instant feedback on your form. Visual Highlights show you exactly what to fix with color-coded annotations on each frame—green for what you nailed, red for what needs work. YOUR COACH, YOUR WAY Chat naturally with your AI trainer to log workouts, track your nutrition, ask questions, and get personalized insights. Just say "bench 185 for 10" or take a picture of your food and your coach handles the rest. Choose from 4 coaching personalities—from high-energy motivation to calm, methodical guidance. KEY FEATURES • Video Form Analysis – Frame-by-frame technique evaluation • Visual Highlights – See exactly what your coach is pointing at • Conversational Logging – No more tapping through forms • Nutrition Tracking — log meals, scan barcodes, track macros, and set custom targets for training and rest days • Program Upload — Upload PDF training programs directly in chat for your AI coach to follow • Progress Insights – Charts and stats, just ask • 4 Coach Personalities – Find the voice that motivates you WHO IT'S FOR • Beginners learning proper form • Lifters who want real feedback, not guesswork • Anyone serious about injury prevention • People who hate clunky workout apps PRIVACY FIRST Your videos are processed securely and never shared. Start training smarter. Download Flexion. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.flexionapp.com/privacy

About

FormSight

Features
Read full description

FormSight is a coaching tool for personal trainers, strength coaches, and movement specialists. Record a client's set, see a live skeleton overlay with joint angles and rep-by-rep form grades, then review the session with frame-by-frame playback, annotation, and looping. WHAT IT DOES • Live skeleton overlay with joint angles during recording • Rep counting with green, yellow, and red form grades • Eight movement quality checks including knee valgus, hip shift, forward lean, and back rounding • Side-by-side comparison of two sessions • Frame-by-frame review with drawing, annotation, and looping • Per-client roster with session history, trend charts, and quality scores • Branded PDF reports for client check-ins • Still frame capture and video export to Photos • Fully on-device processing — no internet required, no account, no data leaves your device SUPPORTED EXERCISES Squat (front view and side view), Romanian deadlift, stiff-leg deadlift, and good morning. Each exercise activates the movement quality checks that apply to its pattern. SUBSCRIPTION FormSight Coach starts with a 14-day free trial. After the trial, continue at $9.99 per month or $99 per year. Subscriptions auto-renew through your Apple ID unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Apple ID Settings. PRIVACY All client data, recordings, session notes, and PDF exports stay on your device. FormSight has no analytics, no account creation, and sends no data to a server. FormSight is a coaching and observation tool. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any injury, illness, or condition.

Screenshots

Flexion4 screens
FormSight4 screens

Verdict

The call

The clearest difference is update cadence: Flexion at fortnightly against FormSight's monthly. Flexion also leads on iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Flexion sells 2 in-app purchases, starting at $9.99 per month and FormSight sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Flexion ships an update fortnightly, FormSight monthly. The most recent releases landed on October 24, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
Flexion versus FormSight: the parameters behind the verdict, then further details
ParameterFlexionFormSight
PriceFreeFree
Rating4.4 (7 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings7 — better—
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.1 — better17.0
Further details — not scored
Size62 MB8 MB
Age rating4+4+
DeveloperAgastya AhluwaliaBig Creek Holdings LLC

In-app purchases

2 purchases

Flexion

Subscriptions2
  • Premium Monthly$9.991 Month
  • Premium Yearly$59.991 Year
2 purchases

FormSight

Subscriptions2
  • FormSight Coach (Monthly)14 Days trial$9.991 Month
  • FormSight Coach Annual14 Days trial$99.991 Year

Questions

Is Flexion free?
Flexion is free to download, with in-app purchases available.
Is FormSight free?
FormSight is free to download, with in-app purchases available.
Do Flexion or FormSight have ads?
Neither Flexion nor FormSight shows ads.
Which is updated more often, Flexion or FormSight?
Flexion ships an update fortnightly, and FormSight monthly. Most recently, Flexion was updated on October 24, 2026 and FormSight on October 8, 2026.

Other comparisons