# PostureCHEKCKER vs Plank Music

The clearest difference is price: Plank Music at Free against PostureCHEKCKER's $6.99. Plank Music also leads on update cadence (every 2 weeks vs every 5 months) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

Plank Music is free to download; PostureCHEKCKER costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

PostureCHEKCKER ships an update every 5 months, Plank Music every 2 weeks. The most recent releases landed on November 11, 2026 and January 6, 2026 respectively.

## The numbers

| Metric | PostureCHEKCKER | Plank Music |
| --- | --- | --- |
| Price | $6.99 | **Free** |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/posturechekcker-plus/id984388779/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Monetization | Paid | — |
| Size | 3 MB | 13 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Medic Engineering K.K.](https://appshunter.io/developer/917118875) | [Shu En Chien](https://appshunter.io/developer/396641126) |

## What reviewers say

### PostureCHEKCKER

[App page](https://appshunter.io/ios/app/posturechekcker-plus/id984388779)

Analyze your posture by marking key points on a full-body photograph. The app calculates angles to assess your alignment and provides results for total, neck, hip, and knee angles. Save your posture analysis as a JPEG.

**Highlights:** Posture analysis via photo, Marking of key body points, Calculation of total, neck, hip, and knee angles, Spirit level camera feature, Save results as JPEG

**In-app purchases:** none


### Plank Music

[App page](https://appshunter.io/ios/app/plank-music/id1134609083)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PostureCHEKCKER free?

PostureCHEKCKER costs $6.99, with no in-app purchases.

### Is Plank Music free?

Plank Music is free to download, with no in-app purchases.

### Do PostureCHEKCKER or Plank Music have ads?

Neither PostureCHEKCKER nor Plank Music shows ads.

### Which is updated more often, PostureCHEKCKER or Plank Music?

PostureCHEKCKER ships an update every 5 months, and Plank Music every 2 weeks. Most recently, PostureCHEKCKER was updated on November 11, 2026 and Plank Music on January 6, 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.*