# KNEESUP vs ECG Wizard

The clearest difference is review sentiment: KNEESUP at 100% against ECG Wizard's 40%. KNEESUP also leads on device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on July 21, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | KNEESUP | ECG Wizard |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 40.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 45 MB | 21 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 12+ |
| Developer | [CONZIAN LTD.](https://appshunter.io/developer/1452496234) | [TRI-SERVICE GENERAL HOSPITAL](https://appshunter.io/developer/1251296226) |

## 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


### ECG Wizard

[App page](https://appshunter.io/ios/app/ecg-wizard/id6451408645)

This app uses AI and Apple Watch ECG data to estimate your heart age, predict cardiovascular disease risk, and assess mortality risk. It provides insights into your heart health for early detection and preventive measures.

**Highlights:** Heart age estimation via AI, Cardiovascular disease risk prediction, Mortality risk assessment, ECG data analysis, AI deep learning for health insights

**In-app purchases:** none


## Frequently asked questions

### Is KNEESUP free?

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

### Is ECG Wizard free?

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

### Do KNEESUP or ECG Wizard have ads?

Neither KNEESUP nor ECG Wizard shows ads.

### Which is updated more often, KNEESUP or ECG Wizard?

KNEESUP ships an update every 2 months, and ECG Wizard every 2 months. Most recently, KNEESUP was updated on July 21, 2026 and ECG Wizard on August 16, 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.*