# Posture Reminder vs back

The clearest difference is in-app purchases: back at none against Posture Reminder's 2. back also leads on device support (3 vs 1) and iOS requirement (15.1 vs 17.0). Posture Reminder's advantage is ads (none vs shown). On price and update cadence there is nothing between them.

Both are free to download. Posture Reminder sells 2 in-app purchases, starting at $4.99 per 7 days. back asks for nothing beyond the download.

Posture Reminder ships an update weekly, back every 4 days. Both last shipped on September 14, 2026.

## The numbers

| Metric | Posture Reminder | back |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Weekly | **Every 4 days** |
| Size | 17 MB | 52 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Furkan Alcik](https://appshunter.io/developer/1463451323) | [DongKwan Kho](https://appshunter.io/developer/6785714075) |

## What reviewers say

### Posture Reminder

[App page](https://appshunter.io/ios/app/posture-reminder-fix-posture/id6798813745)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Yearly | $14.99 | per year |


### back

[App page](https://appshunter.io/ios/app/back-up-posture-reminder/id6800533416)

**In-app purchases:** none


## Frequently asked questions

### Is Posture Reminder free?

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

### Is back free?

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

### Do Posture Reminder or back have ads?

back shows ads; Posture Reminder does not.

### Which is updated more often, Posture Reminder or back?

Posture Reminder ships an update weekly, and back every 4 days. Most recently, Posture Reminder was updated on September 14, 2026 and back on September 14, 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.*