# グリッド線撮影アプリ ROM vs パワーマグネット

The clearest difference is ads: パワーマグネット at none against グリッド線撮影アプリ ROM's shown. On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

グリッド線撮影アプリ ROM ships an update every 37 months, パワーマグネット every 38 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | グリッド線撮影アプリ ROM | パワーマグネット |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 37 months** | Every 38 months |
| Monetization | Ad-supported | — |
| Size | 37 MB | 14 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Naradewa Inc.](https://appshunter.io/developer/949334413) | [POWERMAGNET, K.K.](https://appshunter.io/developer/1449079316) |

## 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


### パワーマグネット

[App page](https://appshunter.io/ios/app/id1449079317)

**In-app purchases:** none


## 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 パワーマグネット free?

パワーマグネット is free to download, with no in-app purchases.

### Do グリッド線撮影アプリ ROM or パワーマグネット have ads?

グリッド線撮影アプリ ROM shows ads; パワーマグネット does not.

### Which is updated more often, グリッド線撮影アプリ ROM or パワーマグネット?

グリッド線撮影アプリ ROM ships an update every 37 months, and パワーマグネット every 38 months. Most recently, グリッド線撮影アプリ ROM was updated on October 24, 2026 and パワーマグネット on October 19, 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.*