# Fiuu TMS vs SOUR

The clearest difference is update cadence: SOUR at every 4 weeks against Fiuu TMS's every 5 months. Fiuu TMS's advantage is iOS requirement (12.0 vs 17.0). 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.

Fiuu TMS ships an update every 5 months, SOUR every 4 weeks. The most recent releases landed on October 25, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Fiuu TMS | SOUR |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 4 weeks** |
| Size | 41 MB | 37 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [RAZER FINTECH SG PTE. LTD.](https://appshunter.io/developer/1525593397) | [413 Labs Sdn. Bhd.](https://appshunter.io/developer/1833491205) |

## What reviewers say

### Fiuu TMS

[App page](https://appshunter.io/ios/app/fiuu-tms/id1642450148)

**Features:** macOS Compatibility

**In-app purchases:** none


### SOUR

[App page](https://appshunter.io/ios/app/sour/id6756574487)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fiuu TMS free?

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

### Is SOUR free?

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

### Do Fiuu TMS or SOUR have ads?

Neither Fiuu TMS nor SOUR shows ads.

### Which is updated more often, Fiuu TMS or SOUR?

Fiuu TMS ships an update every 5 months, and SOUR every 4 weeks. Most recently, Fiuu TMS was updated on October 25, 2026 and SOUR on October 18, 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.*