# LN vs SDM 2022

The clearest difference is update cadence: SDM 2022 at every 10 days against LN's every 8 months. 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.

LN ships an update every 8 months, SDM 2022 every 10 days. The most recent releases landed on October 2, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | LN | SDM 2022 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 10 days** |
| Size | 832 MB | 13 MB |
| Requires iOS | 10.0 | 10.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Éditions JOCATOP](https://appshunter.io/developer/1438112476) | [Christophe Auclair](https://appshunter.io/developer/1333526155) |

## What reviewers say

### LN

[App page](https://appshunter.io/ios/app/ln-sciences-2/id1465230689)

**Features:** Vision Pro support

**In-app purchases:** none


### SDM 2022

[App page](https://appshunter.io/ios/app/sdm-2022/id1594835687)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LN free?

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

### Is SDM 2022 free?

SDM 2022 is free to download, with no in-app purchases.

### Do LN or SDM 2022 have ads?

Neither LN nor SDM 2022 shows ads.

### Which is updated more often, LN or SDM 2022?

LN ships an update every 8 months, and SDM 2022 every 10 days. Most recently, LN was updated on October 2, 2026 and SDM 2022 on October 10, 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.*