# TracPatch Knee vs GAP

The clearest difference is review sentiment: TracPatch Knee at 60% against GAP's 0%. TracPatch Knee also leads on rating (4.3 vs 1.5) and update cadence (every 2 months vs every 10 months). GAP's advantage is iOS requirement (10.0 vs 13.0). On price, ratings volume, 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.

TracPatch Knee holds the better App Store score, 4.3 against 1.5. Both are backed by a comparable volume of ratings — 9 and 4 respectively. Written reviews point the same way: 60% of TracPatch Knee's written reviews are positive against 0% of GAP's.

TracPatch Knee ships an update every 2 months, GAP every 10 months. The most recent releases landed on October 1, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | TracPatch Knee | GAP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (9 ratings)](https://appshunter.io/ios/app/tracpatch-knee/id1438219554/reviews)** | [1.5 (4 ratings)](https://appshunter.io/ios/app/gap-flex/id1451112516/reviews) |
| Number of ratings | **9** | 4 |
| Positive reviews | **60.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free | Free |
| Size | 46 MB | 96 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Consensus Orthopedics](https://appshunter.io/developer/1434767853) | [GAP-FLEX®](https://appshunter.io/developer/1451112515) |

## What reviewers say

### TracPatch Knee

[App page](https://appshunter.io/ios/app/tracpatch-knee/id1438219554)

This app provides a smart, connected solution for remote patient monitoring in orthopedics. It captures key daily activities and range of motion to offer healthcare providers real-time insights into patient recovery, enabling proactive care adjustments and improved outcomes.

**Highlights:** Remote patient monitoring, Objective data capture, Predictive outcomes, Continuous activity tracking, Range of motion monitoring, Real-time recovery insights

**Features:** macOS Compatibility

**In-app purchases:** none


### GAP

[App page](https://appshunter.io/ios/app/gap-flex/id1451112516)

This app guides users through knee recovery therapy using a gravity-based system. It provides setup instructions, animated demonstrations, therapy timers, progress tracking, and recommended exercises to aid in regaining range of motion after knee replacement.

**Highlights:** Setup instructions, Animated demonstrations, Therapy timer, Progress tracking, Recommended exercises

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is TracPatch Knee free?

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

### Is GAP free?

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

### Which has better reviews, TracPatch Knee or GAP?

TracPatch Knee is rated higher. TracPatch Knee averages 4.3 out of 5 from 9 ratings, while GAP averages 1.5 from 4 ratings.

### Do TracPatch Knee or GAP have ads?

Neither TracPatch Knee nor GAP shows ads.

### Which is updated more often, TracPatch Knee or GAP?

TracPatch Knee ships an update every 2 months, and GAP every 10 months. Most recently, TracPatch Knee was updated on October 1, 2026 and GAP on September 26, 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.*