# LeitnerAI vs KidHub

The clearest difference is iOS requirement: KidHub at 13.0 against LeitnerAI's 16.0. 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.

LeitnerAI ships an update every 3 weeks, KidHub every 5 weeks. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | LeitnerAI | KidHub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (8 ratings)](https://appshunter.io/ios/app/leitnerai-simple-anki/id6755983344/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 5 MB | 77 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Amir Faghihi](https://appshunter.io/developer/1857837795) | [Hem Rai](https://appshunter.io/developer/6809593588) |

## What reviewers say

### LeitnerAI

[App page](https://appshunter.io/ios/app/leitnerai-simple-anki/id6755983344)

This application uses the Leitner system to help users learn and memorize vocabulary. Words are sorted into boxes based on mastery, with AI assisting in creating an optimal learning path. It focuses on efficient study by prioritizing difficult words.

**Highlights:** Leitner system for spaced repetition, Vocabulary memorization, AI-generated learning paths, Progress tracking through study boxes, Focus on difficult words

**Features:** Vision Pro support

**In-app purchases:** none


### KidHub

[App page](https://appshunter.io/ios/app/kidhub-learning-with-fun/id6809593586)

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

**In-app purchases:** none


## Frequently asked questions

### Is LeitnerAI free?

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

### Is KidHub free?

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

### Do LeitnerAI or KidHub have ads?

Neither LeitnerAI nor KidHub shows ads.

### Which is updated more often, LeitnerAI or KidHub?

LeitnerAI ships an update every 3 weeks, and KidHub every 5 weeks. Most recently, LeitnerAI was updated on October 30, 2026 and KidHub on October 31, 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.*