# READING MAGIC 3 vs Radioactivity

The clearest difference is price: READING MAGIC 3 at Free against Radioactivity's $0.99. READING MAGIC 3 also leads on device support (3 vs 1). Radioactivity's advantage is in-app purchases (none vs 1). On update cadence, ads and iOS requirement there is nothing between them.

READING MAGIC 3 is free to download; Radioactivity costs $0.99 up front. READING MAGIC 3 sells 1 one-off in-app purchase. Radioactivity asks for nothing beyond the download.

READING MAGIC 3 ships an update every 22 months, Radioactivity every 36 months. The most recent releases landed on September 20, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | READING MAGIC 3 | Radioactivity |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[5.0 (13 ratings)](https://appshunter.io/ios/app/reading-magic-3/id446469837/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 89.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 22 months** | Every 36 months |
| Monetization | Free with in-app purchases | — |
| Size | 250 MB | 52 MB |
| Requires iOS | 13.7 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [PRESCHOOL UNIVERSITY](https://appshunter.io/developer/404048727) | [www.ajaxmediatech.com](https://appshunter.io/developer/973768003) |

## What reviewers say

### READING MAGIC 3

[App page](https://appshunter.io/ios/app/reading-magic-3/id446469837)

This app makes learning to read an exciting adventure for children. It uses interactive activities and science-backed methods to help master words with two or more syllables, building essential literacy skills.

**Highlights:** Science of Reading methodology, Focus on multi-syllable words, Blending and segmenting skills, Phonemic awareness development, Three engaging learning modes, Interactive reading games, Progress tracking

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deluxe Upgrade | $3.99 | one-time |


### Radioactivity

[App page](https://appshunter.io/ios/app/radioactivity-physics/id1136130171)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is READING MAGIC 3 free?

READING MAGIC 3 is free to download, with in-app purchases available.

### Is Radioactivity free?

Radioactivity costs $0.99, with no in-app purchases.

### Do READING MAGIC 3 or Radioactivity have ads?

Neither READING MAGIC 3 nor Radioactivity shows ads.

### Which is updated more often, READING MAGIC 3 or Radioactivity?

READING MAGIC 3 ships an update every 22 months, and Radioactivity every 36 months. Most recently, READING MAGIC 3 was updated on September 20, 2026 and Radioactivity on September 16, 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.*