# Algo vs OnLeitner

The clearest difference is update cadence: OnLeitner at fortnightly against Algo's every 15 months. Algo's advantage is iOS requirement (16.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Algo sells 3 in-app purchases, starting at $4.99 per month and OnLeitner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Algo ships an update every 15 months, OnLeitner fortnightly. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Algo | OnLeitner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/algo-coding-logic-puzzles/id6478955967/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 15 months | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 138 MB | 5 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | +4 |
| Developer | [Aleksei Liutykh](https://appshunter.io/developer/1609054018) | [Ruben Gonzalez](https://appshunter.io/developer/1885517252) |

## What reviewers say

### Algo

[App page](https://appshunter.io/ios/app/algo-coding-logic-puzzles/id6478955967)

Engage with programming concepts through interactive puzzles. Control an arrow with commands based on real coding logic to solve increasingly complex challenges. Suitable for both beginners and experienced coders.

**Highlights:** Solve programming puzzles, Control arrow with commands, Learn coding logic, Progressive difficulty, Hints and tips provided, Suitable for all skill levels

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Patron Membership | $4.99 | per month |
| Patron Membership | $7.99 | per 2 months |
| Patron Membership | $8.99 | per 6 months |


### OnLeitner

[App page](https://appshunter.io/ios/app/onleitner/id6760651622)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OnLeitner Premium | $0.99 | one-time |


## Frequently asked questions

### Is Algo free?

Algo is free to download, with in-app purchases available.

### Is OnLeitner free?

OnLeitner is free to download, with in-app purchases available.

### Do Algo or OnLeitner have ads?

Neither Algo nor OnLeitner shows ads.

### Which is updated more often, Algo or OnLeitner?

Algo ships an update every 15 months, and OnLeitner fortnightly. Most recently, Algo was updated on September 24, 2026 and OnLeitner on September 23, 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.*