# Flow Master OS vs Devret

The clearest difference is update cadence: Devret at daily against Flow Master OS's every 8 months. Devret also leads on iOS requirement (13.0 vs 15.1). 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.

Flow Master OS ships an update every 8 months, Devret daily. The most recent releases landed on October 10, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Flow Master OS | Devret |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Daily** |
| Size | 43 MB | 124 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Netta Software](https://appshunter.io/developer/1781221186) | [TOLGA FURKAN KARATAS](https://appshunter.io/developer/1841062361) |

## What reviewers say

### Flow Master OS

[App page](https://appshunter.io/ios/app/flow-master-os/id6738577886)

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

**In-app purchases:** none


### Devret

[App page](https://appshunter.io/ios/app/devret/id6752801479)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Flow Master OS free?

Flow Master OS is free to download, with no in-app purchases.

### Is Devret free?

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

### Do Flow Master OS or Devret have ads?

Neither Flow Master OS nor Devret shows ads.

### Which is updated more often, Flow Master OS or Devret?

Flow Master OS ships an update every 8 months, and Devret daily. Most recently, Flow Master OS was updated on October 10, 2026 and Devret 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.*