# READING MAGIC 4 vs PEPTIDEX

The clearest difference is update cadence: PEPTIDEX at every 6 days against READING MAGIC 4's every 26 months. READING MAGIC 4's advantage is iOS requirement (13.7 vs 15.1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. READING MAGIC 4 sells 1 one-off in-app purchase and PEPTIDEX sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

READING MAGIC 4 ships an update every 26 months, PEPTIDEX every 6 days. The most recent releases landed on October 7, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | READING MAGIC 4 | PEPTIDEX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (52 ratings)](https://appshunter.io/ios/app/reading-magic-4/id1211351945/reviews)** | — |
| Number of ratings | **52** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 208 MB | 50 MB |
| Requires iOS | **13.7** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [PRESCHOOL UNIVERSITY](https://appshunter.io/developer/404048727) | [Maximilian Karmann](https://appshunter.io/developer/1886868534) |

## What reviewers say

### READING MAGIC 4

[App page](https://appshunter.io/ios/app/reading-magic-4/id1211351945)

This app uses interactive activities based on the science of reading to help young learners develop essential reading skills. It focuses on phonograms, digraphs, blending, and segmenting through engaging modes and sequential lessons.

**Highlights:** Science of Reading methodology, Phonograms and digraphs focus, Blending and segmenting modes, Reading mode with hidden pictures, Sequential lessons, Progress tracking for multiple students, Diverse male and female voices

**Features:** macOS Compatibility

**In-app purchases (1)**

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


### PEPTIDEX

[App page](https://appshunter.io/ios/app/peptidex-peptide-tracker/id6760927369)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Peptidex Pro Monthly | $3.99 | per month |
| Peptidex Pro Yearly | $24.99 | per year |


## Frequently asked questions

### Is READING MAGIC 4 free?

READING MAGIC 4 is free to download, with in-app purchases available.

### Is PEPTIDEX free?

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

### Do READING MAGIC 4 or PEPTIDEX have ads?

Neither READING MAGIC 4 nor PEPTIDEX shows ads.

### Which is updated more often, READING MAGIC 4 or PEPTIDEX?

READING MAGIC 4 ships an update every 26 months, and PEPTIDEX every 6 days. Most recently, READING MAGIC 4 was updated on October 7, 2026 and PEPTIDEX on October 18, 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.*