SwingDiff - Swing Analyzer
Skeleton diff. Better swing.
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Diff (compare) your swing skeleton against a reference or your past self to build a more repeatable golf swing. 15-point auto diagnosis, Slo-Mo support, all on-device.
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
• Unlimited analyses
• Expanded history storage
• Richer reference-swing diffs
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.
A NOTE FOR LEFT-HANDED GOLFERS
SwingDiff is currently designed for right-handed golfers. Left-handed support is planned for a future release.
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
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixed alignment issues in the skeleton comparison view. Across all three panels (Your Swing, Reference, Skeleton Comparison), the skeleton size and ankle height are now consistently aligned.
The developer, 10HALF LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Identifiers
- Usage Data
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- TEN HALF LIMITED LIABILITY COMPANY
- Size
- 17.7 MB
- Category
- Sports
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later. - Mac
Requires macOS 13.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
English and 9 more
- English, French, German, Japanese, Korean, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- SwingDiff Pro (Lifetime) $29.99
- Pro Yearly $14.99
- Pro Monthly $1.99
- Copyright
- © 2026 10HALF LLC