# Concentration vs Monster ABC

The clearest difference is rating: Concentration at 5.0 against Monster ABC's 4.5. Concentration also leads on price ($1.99 vs $4.99) and review sentiment (95% vs 85%). Monster ABC's advantage is in-app purchases (none vs 1) and update cadence (every 3 months vs every 7 months). On ratings volume, ads, monetization model and device support there is nothing between them.

Concentration costs $1.99 and Monster ABC $4.99 up front. Concentration sells 1 one-off in-app purchase. Monster ABC asks for nothing beyond the download.

Concentration holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 95% of Concentration's written reviews are positive against 85% of Monster ABC's.

Concentration ships an update every 7 months, Monster ABC every 3 months. Both last shipped on November 6, 2026.

## The numbers

| Metric | Concentration | Monster ABC |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/concentration-kids-attention-trainer/id523101160/reviews)** | [4.5 (2 ratings)](https://appshunter.io/ios/app/monster-abc-learning/id677638145/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **95.5% of reviews** | 85.4% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 68 MB | 176 MB |
| Requires iOS | **6.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Tivola Games GmbH](https://appshunter.io/developer/1535197273) | [wonderkind GmbH](https://appshunter.io/developer/408718588) |

## What reviewers say

### Concentration

[App page](https://appshunter.io/ios/app/concentration-kids-attention-trainer/id523101160)

This app helps preschool and elementary school children playfully improve their concentration skills through a variety of engaging games and puzzles. It offers 20 different task types with adjustable difficulty levels and tracks progress with collectible rewards.

**Highlights:** Playful concentration training, 20 different task types, Adjustable difficulty levels, Progress tracking with rewards, No reading skills necessary, Available in German and English

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Master of concentration | $0.99 | one-time |


### Monster ABC

[App page](https://appshunter.io/ios/app/monster-abc-learning/id677638145)

This educational app uses engaging monsters and interactive audio-visual elements to teach preschoolers letters and initial sounds. It supports literacy acquisition through fun, game-like activities with a motivating reward system.

**Highlights:** Learn letters via initial sounds, Audio-visual interaction, Spoken words and letters, Motivating reward system, Hand-drawn pictures and sounds, English and German versions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Concentration free?

Concentration costs $1.99, and also offers in-app purchases.

### Is Monster ABC free?

Monster ABC costs $4.99, with no in-app purchases.

### Which has better reviews, Concentration or Monster ABC?

Concentration is rated higher. Concentration averages 5.0 out of 5 from 1 ratings, while Monster ABC averages 4.5 from 2 ratings.

### Do Concentration or Monster ABC have ads?

Neither Concentration nor Monster ABC shows ads.

### Which is updated more often, Concentration or Monster ABC?

Concentration ships an update every 7 months, and Monster ABC every 3 months. Most recently, Concentration was updated on November 6, 2026 and Monster ABC on November 6, 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.*