# Krumbit vs Numina

The clearest difference is in-app purchases: Krumbit at none against Numina's 2. Numina's advantage is update cadence (every 2 days vs weekly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Numina sells 2 in-app purchases, starting at $8.99 per month. Krumbit asks for nothing beyond the download.

Krumbit ships an update weekly, Numina every 2 days. The most recent releases landed on September 16, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Krumbit | Numina |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (15 ratings)](https://appshunter.io/ios/app/krumbit-learn-while-scrolling/id6747910126/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | 93.8% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Free | — |
| Size | 56 MB | 117 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Boqiang Liang](https://appshunter.io/developer/1762321893) | [SVERRE ANKER LARSEN GROENAAS](https://appshunter.io/developer/1891891659) |

## What reviewers say

### Krumbit

[App page](https://appshunter.io/ios/app/krumbit-learn-while-scrolling/id6747910126)

This app transforms your scrolling time into learning opportunities. Watch short video lessons on various topics and test your knowledge with quick quizzes. Build a daily habit of continuous learning in just minutes a day.

**Highlights:** Bite-sized video lessons, Quick quizzes, Daily streak tracking, Progress monitoring, Explore diverse topics, In-app feedback

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

**In-app purchases:** none


### Numina

[App page](https://appshunter.io/ios/app/numina-learn-mental-math/id6761914306)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Numina PRO | $8.99 | per month |
| Numina PRO | $79.99 | per year |


## Frequently asked questions

### Is Krumbit free?

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

### Is Numina free?

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

### Do Krumbit or Numina have ads?

Neither Krumbit nor Numina shows ads.

### Which is updated more often, Krumbit or Numina?

Krumbit ships an update weekly, and Numina every 2 days. Most recently, Krumbit was updated on September 16, 2026 and Numina on September 5, 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.*