# FSO vs AVS Schoolleiders app

The clearest difference is update cadence: AVS Schoolleiders app at fortnightly against FSO's every 3 months. FSO's advantage is iOS requirement (9.0 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.

FSO ships an update every 3 months, AVS Schoolleiders app fortnightly. The most recent releases landed on October 10, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | FSO | AVS Schoolleiders app |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Size | 10 MB | 79 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sedna Software](https://appshunter.io/developer/1607346528) | [AVS Holding B.V.](https://appshunter.io/developer/1733612512) |

## What reviewers say

### FSO

[App page](https://appshunter.io/ios/app/fso/id1458839272)

**Features:** macOS Compatibility

**In-app purchases:** none


### AVS Schoolleiders app

[App page](https://appshunter.io/ios/app/avs-schoolleiders-app/id6478652716)

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

**In-app purchases:** none


## Frequently asked questions

### Is FSO free?

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

### Is AVS Schoolleiders app free?

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

### Do FSO or AVS Schoolleiders app have ads?

Neither FSO nor AVS Schoolleiders app shows ads.

### Which is updated more often, FSO or AVS Schoolleiders app?

FSO ships an update every 3 months, and AVS Schoolleiders app fortnightly. Most recently, FSO was updated on October 10, 2026 and AVS Schoolleiders app on September 20, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*