# Keymagine vs Nosabo World

The clearest difference is ads: Keymagine at none against Nosabo World's shown. Keymagine also leads on iOS requirement (15.1 vs 17.0). Nosabo World's advantage is review sentiment (83% vs 55%). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Keymagine sells 7 in-app purchases, starting at $4.99 per 7 days and Nosabo World sells 3 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 4.8 for Keymagine against 4.8 for Nosabo World. Both are backed by a comparable volume of ratings — 273 and 196 respectively. Written reviews are what separate them: 55% of Keymagine's written reviews are positive against 83% of Nosabo World's.

Keymagine ships an update every 2 weeks, Nosabo World every 9 days. Both last shipped on October 28, 2026.

## The numbers

| Metric | Keymagine | Nosabo World |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (273 ratings)](https://appshunter.io/ios/app/keymagine/id6740253968/reviews) | **[4.8 (196 ratings)](https://appshunter.io/ios/app/nosabo-world/id6749601149/reviews)** |
| Number of ratings | **273** | 196 |
| Positive reviews | 54.5% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 60 MB | 124 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Keymagine](https://appshunter.io/developer/1789245289) | [noplans labs inc.](https://appshunter.io/developer/1711653065) |

## What reviewers say

### Keymagine

[App page](https://appshunter.io/ios/app/keymagine/id6740253968)

Master new languages faster with a visual mnemonic method. This app uses over 5000 words with memorable images and bite-sized lessons to boost vocabulary retention and make learning engaging.

**Highlights:** 5000+ words with memorable images, Bite-sized learning modules, Interactive quizzes for progress tracking, Save favorite words for review, Detailed word information (gender, meaning, examples), Visual mnemonic learning approach

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Keymagine Premium (Weekly) | $4.99 | per 7 days |
| Keymagine Premium (Weekly) | $8.99 | per 7 days |
| Keymagine Premium (Monthly) | $8.99 | per month |
| Keymagine Premium (Yearly) | $24.99 | per year |
| Keymagine Premium (Yearly) | $34.99 | per year |
| Keymagine Premium (Yearly) | $44.99 | per year |
| Keymagine Premium (Yearly) | $59.99 | per year |


### Nosabo World

[App page](https://appshunter.io/ios/app/nosabo-world/id6749601149)

Engage in immersive conversations to practice speaking and build vocabulary in multiple languages. Learn grammar, conjugations, and natural expressions with adaptive flashcards and clear feedback. Offers daily practice sessions and preset topics for targeted learning.

**Highlights:** Immersive conversation practice, Vocabulary building, On-demand concept learning, Smart adaptive flashcards, Daily practice sessions, Multiple language support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| nosabo premium | $3.99 | per 7 days |
| nosabo premium | $9.99 | per month |
| nosabo premium | $59.99 | per year |


## Frequently asked questions

### Is Keymagine free?

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

### Is Nosabo World free?

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

### Which has better reviews, Keymagine or Nosabo World?

Nosabo World is rated higher. Keymagine averages 4.8 out of 5 from 273 ratings, while Nosabo World averages 4.8 from 196 ratings.

### Do Keymagine or Nosabo World have ads?

Nosabo World shows ads; Keymagine does not.

### Which is updated more often, Keymagine or Nosabo World?

Keymagine ships an update every 2 weeks, and Nosabo World every 9 days. Most recently, Keymagine was updated on October 28, 2026 and Nosabo World on October 28, 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.*