# グリッド線撮影アプリ ROM vs Poslog

The clearest difference is in-app purchases: グリッド線撮影アプリ ROM at none against Poslog's 4. グリッド線撮影アプリ ROM also leads on iOS requirement (13.0 vs 18.0). Poslog's advantage is ads (none vs shown) and update cadence (weekly vs every 28 months). On price and device support there is nothing between them.

Both are free to download. Poslog sells 4 in-app purchases, starting at $2.99 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 28 months, Poslog weekly. The most recent releases landed on September 19, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | グリッド線撮影アプリ ROM | Poslog |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/poslog-make-exercise-a-habit/id1535572270/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | 42.9% of reviews | **69.2% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 28 months | **Weekly** |
| Monetization | **Ad-supported** | Freemium |
| Size | 34 MB | 51 MB |
| Requires iOS | **13.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Naradewa Inc.](https://appshunter.io/developer/949334413) | [Poslog, Inc.](https://appshunter.io/developer/1482204341) |

## 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


### Poslog

[App page](https://appshunter.io/ios/app/poslog-make-exercise-a-habit/id1535572270)

This app helps individuals and trainers track workout form and progress with video analysis and detailed logging. It allows for capturing, reviewing, and annotating exercise videos, comparing clips, and building custom routines from a large exercise library.

**Highlights:** Video capture with tilt guides, High-frame-rate video recording, Video trimming and annotation, Side-by-side clip comparison, Built-in exercise library, Detailed workout logging, Client management for trainers

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $2.99 | per month |
| Pro | $29.99 | per month |
| Team | $99.99 | per month |
| Business | $299.99 | 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 Poslog free?

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

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

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

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

グリッド線撮影アプリ ROM ships an update every 28 months, and Poslog weekly. Most recently, グリッド線撮影アプリ ROM was updated on September 19, 2026 and Poslog on September 10, 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.*