# SD Manager vs Sistema 381

The clearest difference is iOS requirement: SD Manager at 11.0 against Sistema 381's 15.0. 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.

SD Manager ships an update every 2 months, Sistema 381 every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | SD Manager | Sistema 381 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 14 MB | 78 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Metarete s.r.l.](https://appshunter.io/developer/951311959) | [CBA Informatica srl](https://appshunter.io/developer/1512919600) |

## What reviewers say

### SD Manager

[App page](https://appshunter.io/ios/app/sd-manager/id1061919396)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sistema 381

[App page](https://appshunter.io/ios/app/sistema-381/id6463131203)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SD Manager free?

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

### Is Sistema 381 free?

Sistema 381 is free to download, with no in-app purchases.

### Do SD Manager or Sistema 381 have ads?

Neither SD Manager nor Sistema 381 shows ads.

### Which is updated more often, SD Manager or Sistema 381?

SD Manager ships an update every 2 months, and Sistema 381 every 6 weeks. Most recently, SD Manager was updated on November 2, 2026 and Sistema 381 on November 3, 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.*