# backrobo vs Stretchy Stretching & Mobility

The clearest difference is in-app purchases: backrobo at none against Stretchy Stretching & Mobility's 2. backrobo also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (12.0 vs 18.1). On price, ads and device support there is nothing between them.

Both are free to download. Stretchy Stretching & Mobility sells 2 in-app purchases, starting at $4.99 per 7 days. backrobo asks for nothing beyond the download.

backrobo ships an update every 2 weeks, Stretchy Stretching & Mobility every 2 months. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | backrobo | Stretchy Stretching & Mobility |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/backrobo/id6447506732/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 42 MB | 12 MB |
| Requires iOS | **12.0** | 18.1 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [AIWORKS GLOBAL, INC](https://appshunter.io/developer/1646420078) | [Morgan Zellers](https://appshunter.io/developer/1651985906) |

## What reviewers say

### backrobo

[App page](https://appshunter.io/ios/app/backrobo/id6447506732)

This app offers an intelligent health program to address issues stemming from prolonged sitting. It monitors and manages sitting posture to prevent and alleviate occupational diseases, aiming to improve work efficiency.

**Highlights:** Intelligent health ecological intervention, Monitors sitting posture, Manages sitting posture, Prevents occupational diseases, Alleviates health problems from sedentariness, Improves work efficiency

**In-app purchases:** none


### Stretchy Stretching & Mobility

[App page](https://appshunter.io/ios/app/stretchy-stretching-and-mobility/id6743681346)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Access | $4.99 | per 7 days |
| Monthly Access | $9.99 | per month |


## Frequently asked questions

### Is backrobo free?

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

### Is Stretchy Stretching & Mobility free?

Stretchy Stretching & Mobility is free to download, with in-app purchases available.

### Do backrobo or Stretchy Stretching & Mobility have ads?

Neither backrobo nor Stretchy Stretching & Mobility shows ads.

### Which is updated more often, backrobo or Stretchy Stretching & Mobility?

backrobo ships an update every 2 weeks, and Stretchy Stretching & Mobility every 2 months. Most recently, backrobo was updated on October 30, 2026 and Stretchy Stretching & Mobility on October 28, 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.*