# Act & Learn vs SDM 2021

The clearest difference is update cadence: SDM 2021 at every 2 months against Act & Learn's every 6 months. SDM 2021 also leads on iOS requirement (10.0 vs 13.0). 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.

Act & Learn ships an update every 6 months, SDM 2021 every 2 months. The most recent releases landed on October 24, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | Act & Learn | SDM 2021 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 117 MB | 25 MB |
| Requires iOS | 13.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yves Rocher](https://appshunter.io/developer/485296927) | [Christophe Auclair](https://appshunter.io/developer/1333526155) |

## What reviewers say

### Act & Learn

[App page](https://appshunter.io/ios/app/act-and-learn/id1543940624)

This application offers a diverse training catalog, interactive learning games, and challenges to help users develop knowledge and skills. It provides a flexible learning experience accessible anytime, anywhere.

**Highlights:** Training catalog, Learning games, Challenges, Skill development, Knowledge acquisition

**Features:** Vision Pro support

**In-app purchases:** none


### SDM 2021

[App page](https://appshunter.io/ios/app/sdm-2021/id1554118444)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Act & Learn free?

Act & Learn is free to download, with no in-app purchases.

### Is SDM 2021 free?

SDM 2021 is free to download, with no in-app purchases.

### Do Act & Learn or SDM 2021 have ads?

Neither Act & Learn nor SDM 2021 shows ads.

### Which is updated more often, Act & Learn or SDM 2021?

Act & Learn ships an update every 6 months, and SDM 2021 every 2 months. Most recently, Act & Learn was updated on October 24, 2026 and SDM 2021 on October 19, 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.*