# OSIRIS HAS green academy vs BatLib

The clearest difference is update cadence: OSIRIS HAS green academy at every 10 months against BatLib's every 26 months. OSIRIS HAS green academy also leads on iOS requirement (11.0 vs 15.0). 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.

OSIRIS HAS green academy ships an update every 10 months, BatLib every 26 months. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | OSIRIS HAS green academy | BatLib |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 26 months |
| Size | 34 MB | 38 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [CACI bv](https://appshunter.io/developer/961337312) | [Elekon AG](https://appshunter.io/developer/1591447845) |

## What reviewers say

### OSIRIS HAS green academy

[App page](https://appshunter.io/ios/app/osiris-has-green-academy/id1502982524)

**Features:** macOS Compatibility

**In-app purchases:** none


### BatLib

[App page](https://appshunter.io/ios/app/batlib/id6469684050)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OSIRIS HAS green academy free?

OSIRIS HAS green academy is free to download, with no in-app purchases.

### Is BatLib free?

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

### Do OSIRIS HAS green academy or BatLib have ads?

Neither OSIRIS HAS green academy nor BatLib shows ads.

### Which is updated more often, OSIRIS HAS green academy or BatLib?

OSIRIS HAS green academy ships an update every 10 months, and BatLib every 26 months. Most recently, OSIRIS HAS green academy was updated on October 3, 2026 and BatLib on October 14, 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.*