Katamuki Checker vs SynoPosture

Record posture and movement in photos and videos, then check angles on the image. Capture a photo or import one from your photo library, place and adjust points, and save or compare your records. CHECK ANGLES ON PHOTOS • Measure an angle with 3 points, or consecutive angles with 4 or 5 points. • Check tilt relative to horizontal or vertical. • Zoom in and adjust point positions. • Use automatic pose detection and edit points manually. SAVE MEASUREMENT IMAGES Save a photo with the selected measurement’s lines and angles inside the app. Each saved image is separate from the original photo record, so it preserves the view at the time of saving even if you later edit that record. Saving inside the app does not add an image to your photo library. REVIEW AND COMPARE RECORDS Browse photos, videos and saved measurement images. Compare two photos or measurement images side by side, with independent zoom and pan. Match measurements of the same kind to check angle differences. EXPORT WHAT YOU NEED Export saved measurement images to Photos. Preview comparison images as Photos only or With details before exporting. Export measurement records as PDF reports and CSV files, or use the system share sheet. SUPPORT FOR CAPTURE Capture photos and videos with optional grid lines and an upright holding guide. Hold the device vertically in portrait orientation: the guide reads 0° when upright and turns green within 3°. Choose which overlays to show and save in Capture settings. No account is required. Photos, videos, pose detection, angle calculations and records are processed and stored on your device. The app does not send this data to the developer and contains no advertising or tracking. Katamuki Checker supports recording and observation. Image angles depend on the camera viewpoint and point placement. It does not provide a medical diagnosis or replace treatment decisions.

SynoPosture helps you monitor your head posture in real time using supported AirPods and Beats headphones. It is designed for work, study, gaming, and long desk sessions where neck strain can build up quietly over time. Using Apple’s headphone motion data, SynoPosture tracks pitch, roll, and yaw and shows your head orientation with a live 3D viewer. When your head stays below your selected posture threshold for too long, the app can send a gentle reminder so you can return to a healthier position. Key Features * Real-time head orientation tracking * Live 3D posture viewer * Adjustable posture sensitivity * Configurable reminder delay * Smart posture alerts * Cooldown protection to reduce repeated notifications * Background-aware timer handling * Live Activities and Dynamic Island support * Apple Watch companion app * Real-time iPhone and Apple Watch sync * Watch haptics and manual refresh controls * VoiceOver, Dynamic Type, Reduce Motion, and accessibility support Apple Watch Companion SynoPosture includes an Apple Watch app that mirrors posture values from your iPhone and helps you stay informed from your wrist. It supports real-time posture data, refresh controls, haptic feedback, and resilient syncing between devices. Live Activities When posture monitoring is active, SynoPosture can show a live countdown on the Lock Screen and Dynamic Island, helping you follow posture alerts without opening the app. Background Support SynoPosture is built to keep posture sessions consistent through foreground and background transitions. Session state is saved locally so reminders and timer behavior remain reliable. How It Works 1. Connect supported AirPods or Beats headphones. 2. Open SynoPosture and allow motion and notification access. 3. View your head movement in real time. 4. Set your posture sensitivity and reminder delay. 5. Receive a reminder when your head stays down too long. Compatibility * Requires compatible headphones with Apple headphone motion support * Supported devices include AirPods Pro, AirPods Max, and Powerbeats Pro * Apple Watch app is optional * Notifications and Bluetooth should be enabled for the best experience Stay upright, stay focused, and protect your posture throughout the day.