# MENTENA（メンテナ） vs JTSTAR

The clearest difference is update cadence: MENTENA（メンテナ） at monthly against JTSTAR's every 9 months. MENTENA（メンテナ） also leads on device support. JTSTAR's advantage is iOS requirement (12.0 vs 18.0). On price 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.

MENTENA（メンテナ） ships an update monthly, JTSTAR every 9 months. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | MENTENA（メンテナ） | JTSTAR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Monthly** | Every 9 months |
| Size | 137 MB | 129 MB |
| Requires iOS | 18.0 | **12.0** |
| Devices | **iPhone, iPad** | — |
| Age rating | 4+ | 4+ |
| Developer | [八千代ソリューションズ株式会社](https://appshunter.io/developer/1795814388) | [JIP Techno Science Corporation](https://appshunter.io/developer/738766890) |

## What reviewers say

### MENTENA（メンテナ）

[App page](https://appshunter.io/ios/app/mentena/id1490994411)

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

**In-app purchases:** none


### JTSTAR

[App page](https://appshunter.io/ios/app/jtstar/id6670778413)

**In-app purchases:** none


## Frequently asked questions

### Is MENTENA（メンテナ） free?

MENTENA（メンテナ） is free to download, with no in-app purchases.

### Is JTSTAR free?

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

### Which is updated more often, MENTENA（メンテナ） or JTSTAR?

MENTENA（メンテナ） ships an update monthly, and JTSTAR every 9 months. Most recently, MENTENA（メンテナ） was updated on September 9, 2026 and JTSTAR on September 14, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*