# JKESS vs sCMMS

The clearest difference is update cadence: sCMMS at every 3 weeks against JKESS's every 8 months. JKESS's advantage is iOS requirement (13.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

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

JKESS ships an update every 8 months, sCMMS every 3 weeks. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | JKESS | sCMMS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Size | 26 MB | 43 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Nengyi Electronic Technology Co.,Ltd](https://appshunter.io/developer/1745332820) | [TMA Mobile Solutions (TMS)](https://appshunter.io/developer/397093678) |

## What reviewers say

### JKESS

[App page](https://appshunter.io/ios/app/jkess/id6502400975)

**Features:** macOS Compatibility

**In-app purchases:** none


### sCMMS

[App page](https://appshunter.io/ios/app/scmms/id6756110311)

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

**In-app purchases:** none


## Frequently asked questions

### Is JKESS free?

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

### Is sCMMS free?

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

### Do JKESS or sCMMS have ads?

Neither JKESS nor sCMMS shows ads.

### Which is updated more often, JKESS or sCMMS?

JKESS ships an update every 8 months, and sCMMS every 3 weeks. Most recently, JKESS was updated on November 4, 2026 and sCMMS on October 25, 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.*