# KNEESUP vs backrobo

The clearest difference is update cadence: backrobo at every 2 weeks against KNEESUP's every 2 months. On price, ads, in-app purchases and monetization model there is nothing between them.

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

KNEESUP ships an update every 2 months, backrobo every 2 weeks. The most recent releases landed on July 21, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | KNEESUP | backrobo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/backrobo/id6447506732/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | Free |
| Size | 45 MB | 42 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [CONZIAN LTD.](https://appshunter.io/developer/1452496234) | [AIWORKS GLOBAL, INC](https://appshunter.io/developer/1646420078) |

## What reviewers say

### KNEESUP

[App page](https://appshunter.io/ios/app/kneesup/id1452496235)

This app guides users through knee rehabilitation exercises using sensor data for real-time posture correction. It offers a full series of physician-designed exercises to facilitate home recovery.

**Highlights:** Real-time posture correction with sensor data, Physician-designed exercise series, Home-based rehabilitation, Sensor-guided exercise analysis, User authorization via product purchase

**In-app purchases:** none


### 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


## Frequently asked questions

### Is KNEESUP free?

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

### Is backrobo free?

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

### Do KNEESUP or backrobo have ads?

Neither KNEESUP nor backrobo shows ads.

### Which is updated more often, KNEESUP or backrobo?

KNEESUP ships an update every 2 months, and backrobo every 2 weeks. Most recently, KNEESUP was updated on July 21, 2026 and backrobo on June 4, 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.*