# YJT vs Cold Knee Massager

YJT and Cold Knee Massager are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

YJT ships an update every 5 weeks, Cold Knee Massager every 3 weeks. The most recent releases landed on October 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | YJT | Cold Knee Massager |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Size | 132 MB | 33 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [HUBEI YJT TECHNOLOGY CO., LTD](https://appshunter.io/developer/1726505031) | [海洋 刘](https://appshunter.io/developer/1736870190) |

## What reviewers say

### YJT

[App page](https://appshunter.io/ios/app/yjt/id6742525697)

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

**In-app purchases:** none


### Cold Knee Massager

[App page](https://appshunter.io/ios/app/cold-knee-massager/id6770961174)

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

**In-app purchases:** none


## Frequently asked questions

### Is YJT free?

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

### Is Cold Knee Massager free?

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

### Do YJT or Cold Knee Massager have ads?

Neither YJT nor Cold Knee Massager shows ads.

### Which is updated more often, YJT or Cold Knee Massager?

YJT ships an update every 5 weeks, and Cold Knee Massager every 3 weeks. Most recently, YJT was updated on October 30, 2026 and Cold Knee Massager on October 9, 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.*