SwingDiff vs GolfFiT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SwingDiff
Analyze your golf swing using AI pose estimation to compare your form against reference swings or your own past performance. Identify key areas for improvement with detailed diagnostics and track your progress over time, all while keeping your data private on your device.
- On-device skeleton analysis
- 15-point auto diagnosis
- Compare vs. reference or past swings
- Progress tracking
- Privacy-first, offline functionality
- Left-handed swing support
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See what's off in your swing — through your own skeleton. SwingDiff analyzes your golf swing video on-device, then overlays your skeleton against a reference swing or one of your past swings so you can diff (compare) your way to a more repeatable swing. ON-DEVICE SKELETON ANALYSIS Skeleton extraction with Vision Framework. Address, Top, Impact, and Follow-through are auto-detected as the four key phases — no manual frame scrubbing. 15-POINT AUTO DIAGNOSIS Spine tilt, axis lean at the top, hand position at impact — 15 repeatability-critical points are graded pass / fail with a clear overall score, so you know exactly what to work on next. DIFF (COMPARE) VS. REFERENCE OR PAST SELF Overlay your skeleton on a built-in reference swing, or on a previously analyzed swing of your own. Phase by phase you can see where you drift — and that's where repeatability comes from. PROGRESS TRACKING Every analysis is saved to your history. Watch your score trend over time to see whether your practice is paying off. iPhone Slo-Mo videos (120fps / 240fps) are fully supported. PRIVACY-FIRST Videos, images, and skeleton data never leave your iPhone. No account, no sign-in. Every feature works offline. SWINGDIFF PRO • Monthly / Yearly / Lifetime tiers • Ad-free — no ad before each analysis • No home-screen banner ads Subscriptions are charged to your Apple ID at confirmation of purchase and auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel from iOS Settings > your Apple ID > Subscriptions. HOW TO SHOOT Record Down-the-Line (DTL) — directly behind your ball flight line — with your phone held vertically. Position the camera so you appear on the left and the ball on the right of the frame. Bright outdoor light, a simple background, and enough distance to capture your full body all help detection accuracy. LEFT-HANDED SUPPORT Right- and left-handed swings are both supported. Choose your dominant hand during onboarding or in Settings, and left-handed swings are analyzed and compared just like right-handed ones. Privacy Policy: https://10half.jp/swingdiff/privacy.en.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://10half.jp/swingdiff/support.en.html
GolfFiT
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Review the swing you filmed at practice, with measurements you can check in the video. GolfFiT supports golfers practising on their own. See estimated knee and arm angles alongside the relevant moment. Scores use GolfFiT's own posture reference angles; untrackable joints are excluded. MEASURED POSTURE The app finds a setup-to-finish interval, then estimates 3D joint positions to measure knee bend at setup and arm bend at the top. Tap a measurement timestamp to review that moment. A SCORE WITH A BREAKDOWN When both setup and top measurements are available, GolfFiT shows a posture reference score out of 100. Untrackable joints are excluded. Shot-shape inputs do not reduce your score. The score uses GolfFiT's own reference angles, not a validated rating of golf ability. Suitable posture varies by player and club. Compare videos from the same camera position with the same measured items. PRACTICE AND REVIEW See observations based on the measured arm and knee positions, with a movement to revisit or compare in your next recording. Clubface direction, ball contact and weight distribution require additional measurements. MORE PRACTICE TOOLS Explore possible causes and practice ideas for common misses. Keep measurement history, estimate club carry distances, choose a club for the remaining distance and record round scores and putts. No account is required. Videos are processed on your device and are not uploaded for analysis. Loading the analysis models requires an internet connection. Choose a clip of up to 60 seconds showing your body from setup to finish. GOLFFIT PLUS Core features remain free with ads. The optional monthly GolfFiT Plus subscription hides banner ads, analysis interstitials and Rakuten product promotions. Your regional price is shown before purchase (Japan: JPY 300 per month). Payment is charged to your Apple Account. The subscription renews monthly unless canceled at least 24 hours before the current period ends. Restore purchases from Profile. Manage or cancel your subscription in Apple subscription settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://golf-caddie-one.vercel.app/privacy?lang=en
Screenshots
Verdict
The clearest difference is update cadence: GolfFiT at every 3 days against SwingDiff's every 2 weeks. GolfFiT also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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
Both are free to download. SwingDiff sells 3 in-app purchases, starting at $1.99 per month and GolfFiT sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.
SwingDiff ships an update every 2 weeks, GolfFiT every 3 days. The most recent releases landed on October 2, 2026 and October 15, 2026 respectively.
| Parameter | SwingDiff | GolfFiT |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | Yes | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 16 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | 10HALF LLC | CIEL CO., LTD. |
In-app purchases
SwingDiff
- Pro Monthly$1.991 Month
- Pro Yearly$14.991 Year
- SwingDiff Pro (Lifetime)$19.99
GolfFiT
- GolfFiT Plus$1.991 Month








