# AF DCSI vs Mast'O

The clearest difference is update cadence: AF DCSI at every 3 months against Mast'O's every 15 months. AF DCSI also leads on iOS requirement (12.0 vs 14.0). 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.

AF DCSI ships an update every 3 months, Mast'O every 15 months. The most recent releases landed on September 23, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | AF DCSI | Mast'O |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 15 months |
| Size | 29 MB | 26 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Electroconcept](https://appshunter.io/developer/1097062742) | [Filière MaRIH](https://appshunter.io/developer/1727106794) |

## What reviewers say

### AF DCSI

[App page](https://appshunter.io/ios/app/af-dcsi/id6445815597)

**Features:** macOS Compatibility

**In-app purchases:** none


### Mast'O

[App page](https://appshunter.io/ios/app/masto/id6476554444)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AF DCSI free?

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

### Is Mast'O free?

Mast'O is free to download, with no in-app purchases.

### Do AF DCSI or Mast'O have ads?

Neither AF DCSI nor Mast'O shows ads.

### Which is updated more often, AF DCSI or Mast'O?

AF DCSI ships an update every 3 months, and Mast'O every 15 months. Most recently, AF DCSI was updated on September 23, 2026 and Mast'O on October 5, 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.*