# グリッド線撮影アプリ ROM vs SPLYZA Motion

The clearest difference is in-app purchases: グリッド線撮影アプリ ROM at none against SPLYZA Motion's 2. グリッド線撮影アプリ ROM also leads on review sentiment (38% vs 11%) and iOS requirement (13.0 vs 17.6). SPLYZA Motion's advantage is ads (none vs shown) and update cadence (weekly vs every 37 months). On price and device support there is nothing between them.

Both are free to download. SPLYZA Motion sells 2 in-app purchases, starting at $300.00 per month. グリッド線撮影アプリ ROM asks for nothing beyond the download.

グリッド線撮影アプリ ROM ships an update every 37 months, SPLYZA Motion weekly. The most recent releases landed on November 2, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | グリッド線撮影アプリ ROM | SPLYZA Motion |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.3 (6 ratings)](https://appshunter.io/ios/app/splyza-motion/id1550889336/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | **37.5% of reviews** | 11.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 37 months | **Weekly** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 37 MB | 333 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Naradewa Inc.](https://appshunter.io/developer/949334413) | [SPLYZA Inc.](https://appshunter.io/developer/898788949) |

## What reviewers say

### グリッド線撮影アプリ ROM

[App page](https://appshunter.io/ios/app/rom/id1446989276)

This app allows for easy measurement of joint range of motion (ROM) and creation of before-and-after comparisons. It features angle measurement, photo comparison tools, and annotation capabilities for clear visual documentation.

**Highlights:** Angle measurement for joint ROM, Photo comparison (side-by-side, overlay), Shooting support with guides, Annotation with shapes, pens, text, Save photos to camera roll, Upload to customer management app

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SPLYZA Motion

[App page](https://appshunter.io/ios/app/splyza-motion/id1550889336)

This app uses AI and a single camera to analyze 2D and 3D human motion. It tracks over 40 key body points, works offline, and supports various applications like sports form and rehabilitation gait analysis. Data can be exported for further review.

**Highlights:** AI-powered 2D/3D motion analysis, Tracks over 40 key body points, Offline functionality, Supports video import, Displays motion data (angle, speed, distance), Video comparison (2D only), Export coordinates and video data

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2D Analysis Monthly | $300.00 | per month |
| 3D Analysis (Monthly) | $600.00 | per month |


## Frequently asked questions

### Is グリッド線撮影アプリ ROM free?

グリッド線撮影アプリ ROM is free to download, with no in-app purchases.

### Is SPLYZA Motion free?

SPLYZA Motion is free to download, with in-app purchases available.

### Do グリッド線撮影アプリ ROM or SPLYZA Motion have ads?

グリッド線撮影アプリ ROM shows ads; SPLYZA Motion does not.

### Which is updated more often, グリッド線撮影アプリ ROM or SPLYZA Motion?

グリッド線撮影アプリ ROM ships an update every 37 months, and SPLYZA Motion weekly. Most recently, グリッド線撮影アプリ ROM was updated on November 2, 2026 and SPLYZA Motion on November 7, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*