# Learn Data Structures Offline vs Numtalist

The clearest difference is price: Numtalist at Free against Learn Data Structures Offline's $1.99. Numtalist also leads on update cadence (every 2 months vs every 21 months). Learn Data Structures Offline's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 15.0). On ads and device support there is nothing between them.

Numtalist is free to download; Learn Data Structures Offline costs $1.99 up front. Numtalist sells 2 in-app purchases, starting at $7.99 per 7 days. Learn Data Structures Offline asks for nothing beyond the download.

Learn Data Structures Offline ships an update every 21 months, Numtalist every 2 months. The most recent releases landed on October 17, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Learn Data Structures Offline | Numtalist |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/learn-data-structures-offline/id6738282305/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Monetization | Paid | — |
| Size | 38 MB | 15 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Muhammad Mubeen](https://appshunter.io/developer/1553722821) | [Emre Acikgoz](https://appshunter.io/developer/1757822066) |

## What reviewers say

### Learn Data Structures Offline

[App page](https://appshunter.io/ios/app/learn-data-structures-offline/id6738282305)

Master data structures with this comprehensive offline learning app. It offers simple explanations, practical examples, and interview-focused content for students and aspiring software engineers. Build a strong computer science foundation anytime, anywhere.

**Highlights:** Offline learning, Simple explanations, Practical code examples, Interview-focused content, Comprehensive tutorials, Regular updates

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

**In-app purchases:** none


### Numtalist

[App page](https://appshunter.io/ios/app/numtalist-mental-math-trainer/id6760303790)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Pro | $7.99 | per 7 days |
| Yearly Pro | $24.99 | per year |


## Frequently asked questions

### Is Learn Data Structures Offline free?

Learn Data Structures Offline costs $1.99, with no in-app purchases.

### Is Numtalist free?

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

### Do Learn Data Structures Offline or Numtalist have ads?

Neither Learn Data Structures Offline nor Numtalist shows ads.

### Which is updated more often, Learn Data Structures Offline or Numtalist?

Learn Data Structures Offline ships an update every 21 months, and Numtalist every 2 months. Most recently, Learn Data Structures Offline was updated on October 17, 2026 and Numtalist on October 3, 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.*