# KinePair: Motion Compare — Side-by-Side Video Analysis

> Side-by-Side Video Analysis (iPhone/iPad app by Taro Yamamasu.)

- Source: https://appshunter.io/ios/app/kinepair-motion-compare/id6790675755 (this page in markdown: same URL + `.md`)
- Developer: [Taro Yamamasu](https://appshunter.io/developer/1877353243)
- Category: Sports, Photo & Video
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 17.0 · 4 MB
- Languages: American English, Japanese, Korean
- Released: 2026-07-15
- Data updated: 2026-08-17
- User reviews in markdown: https://appshunter.io/ios/app/kinepair-motion-compare/id6790675755/reviews.md

## What is KinePair?

KinePair helps coaches, athletes, trainers, and movement professionals compare two videos with precision.

Choose two videos, set a reference point in each, and review the same moment with synchronized playback. View movements side by side, stacked, or overlaid, then inspect the details with slow playback, frame stepping, and loop controls.

KEY FEATURES

- Synchronize two videos using independent reference points
- Compare side by side, stacked, or overlaid
- Seek and control both videos together
- Use slow playback, precise frame stepping, and loop ranges
- Zoom and pan each video
- Adjust overlay position, scale, rotation, and opacity
- Save local comparison history
- Export images and MP4 video

PRIVATE BY DESIGN

Videos are processed on your device. Copies used for comparison history stay inside the app and are never uploaded to a server. KinePair requires no account and includes no advertising, analytics, or tracking.

TRY THE FULL EXPERIENCE

Your first three comparisons include all KinePair PRO features. After that, basic side-by-side and stacked comparison remains available for free. KinePair PRO is a one-time purchase that unlocks overlay comparison, slow playback, loops, additional frame-step intervals, multiple history items, watermark-free 1080p images, and MP4 video export.

KinePair is a visual comparison tool. It does not provide medical advice, automatic posture analysis, or performance diagnosis.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| FormSync PRO | $6.99 | one-time |



## Version history (last 5 releases)

### 1.3.1 — 2026-08-09

- Added full English support alongside Japanese
- Added a three-page guided introduction
- Added an offline sample comparison with all PRO controls available
- Improved the home screen, error messages, purchase guidance, and VoiceOver labels
- Review requests now appear only after three completed comparisons using your own videos

### 1.3 — 2026-08-07

- 日本語に加えて英語表示へ対応
- 3ページの初回ガイドを追加
- 権限不要、オフラインで利用できるサンプル比較を追加
- ホーム、エラー表示、購入案内、VoiceOverラベルを改善
- レビュー依頼を実動画の比較3回完了後に調整

### 1.2 — 2026-07-21

アプリ名変更に伴うアップデート

### 1.1 — 2026-07-18

Pro機能を3回まで利用可能にしました

### 1.0.1 — 2026-07-17

軽微な動作改善を行いました。

## More apps by Taro Yamamasu

- [RPE log](https://appshunter.io/ios/app/rpe-log/id6759195290)
- [TR English｜トレーナー英語](https://appshunter.io/ios/app/tr-english/id6759241003)
- [RepTrio](https://appshunter.io/ios/app/reptrio/id6794221776)
- [SPOBIN / スポビン](https://appshunter.io/ios/app/spobin/id6794623239)

All apps by Taro Yamamasu: https://appshunter.io/developer/1877353243

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-17.*