# NDC Library vs AI Academy

The clearest difference is iOS requirement: NDC Library at 12.0 against AI Academy's 15.1. 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.

NDC Library ships an update every 2 months, AI Academy monthly. The most recent releases landed on October 7, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | NDC Library | AI Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Size | 24 MB | 447 MB |
| Requires iOS | **12.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Refread Solutions Private Limited](https://appshunter.io/developer/1495104123) | [TSA Weiterbildung & Bildungsakademie GmbH](https://appshunter.io/developer/1781260630) |

## What reviewers say

### NDC Library

[App page](https://appshunter.io/ios/app/ndc-library/id1498650441)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI Academy

[App page](https://appshunter.io/ios/app/ai-academy/id6738582422)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is NDC Library free?

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

### Is AI Academy free?

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

### Do NDC Library or AI Academy have ads?

Neither NDC Library nor AI Academy shows ads.

### Which is updated more often, NDC Library or AI Academy?

NDC Library ships an update every 2 months, and AI Academy monthly. Most recently, NDC Library was updated on October 7, 2026 and AI Academy 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.*