# YCYW TMS vs SITC FAST

The clearest difference is iOS requirement: YCYW TMS at 9.0 against SITC FAST's 12.0. 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.

YCYW TMS ships an update every 6 weeks, SITC FAST monthly. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | YCYW TMS | SITC FAST |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 15 MB | 89 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Suzhou Lixia Information Technology Co., Ltd.](https://appshunter.io/developer/1453669955) | [全 魏](https://appshunter.io/developer/1807089116) |

## What reviewers say

### YCYW TMS

[App page](https://appshunter.io/ios/app/ycyw-tms/id1453669956)

**In-app purchases:** none


### SITC FAST

[App page](https://appshunter.io/ios/app/sitc-fast/id6744354951)

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

**In-app purchases:** none


## Frequently asked questions

### Is YCYW TMS free?

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

### Is SITC FAST free?

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

### Do YCYW TMS or SITC FAST have ads?

Neither YCYW TMS nor SITC FAST shows ads.

### Which is updated more often, YCYW TMS or SITC FAST?

YCYW TMS ships an update every 6 weeks, and SITC FAST monthly. Most recently, YCYW TMS was updated on September 14, 2026 and SITC FAST on September 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.*