# FormSync: Swing & Form Compare

> Side by side video analysis

Canonical page: [https://chrome-stats.com/d/id6779924474](https://chrome-stats.com/d/id6779924474)

## Overview

- **ID:** `id6779924474`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Hiroki Sugiyama
- **Category:** Photo & Video
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.11.0
- **Last updated:** 2026-09-04
- **First published:** 2026-06-18
- **Size:** 36 MB
- **Data as of:** 2026-09-21
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/formsync-swing-form-compare/id6779924474)
- **Privacy policy:** [https://sh-1101.github.io/formsync/privacy.html](https://sh-1101.github.io/formsync/privacy.html)

## Description

FormSync lets you place two videos side by side and play them together — a simple app for checking form.

Compare any kind of movement: dance, golf, tennis, baseball, training, and more. Put a reference next to yourself, or your past form next to today's, and spot the differences at a glance.

Features
- Pick two videos from your camera roll and view them side by side
- Play and pause both videos at the same time
- A shared seek bar to move both to the same position
- Slow-motion playback (0.25x / 0.5x / 0.75x / 1x)
- Set a start point for each video and fine-tune it in 0.05s steps
- Jump to start / skip forward 10s / back 10s
- Pinch to zoom in and check the fine details up close (zoom is kept in your exports too)
- Landscape mode on the compare screen
- Swap one video and keep the other — compare new takes against your reference, one after another
- Mirror view — flip either video horizontally to match your reference's direction
- Draw straight lines to compare form — angle and alignment (PRO)
- Auto-detect pose — full-body skeleton and spine angle drawn in one tap (PRO)
- Export your comparison as a single video, landscape or vertical 9:16 (saved to your camera roll, ready to share)
- Set an end point and export just the range you want to show
- Save your comparisons to history, name them, and revisit them

Free
- Compare any videos — preview plays 10 seconds from your chosen start points
- Export comparisons up to 10 seconds (with a small watermark)
- Keep your 5 most recent comparisons in history

PRO (one-time purchase)
- Play and compare videos in full length
- Draw straight lines to compare form — angle and alignment, baked into your exports too
- Auto-detect pose — full-body skeleton plus spine angle for your golf swing, in one tap
- Export full-length comparisons (watermark can be turned off)
- Keep unlimited history

All videos are processed on your device and are never uploaded to a server.

For iPhone.

## Rankings

- #844,976 — Overall
- #85 — compare

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6779924474)