# Decoding Chart vs The World Autistic

The clearest difference is in-app purchases: Decoding Chart at none against The World Autistic's 2. The World Autistic's advantage is update cadence (fortnightly vs every 71 months) and device support (3 vs 1). On price, ads and iOS requirement there is nothing between them.

Both are free to download. The World Autistic sells 2 in-app purchases, starting at $2.99 per month. Decoding Chart asks for nothing beyond the download.

Decoding Chart ships an update every 71 months, The World Autistic fortnightly. The most recent releases landed on September 9, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Decoding Chart | The World Autistic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (2 ratings)](https://appshunter.io/ios/app/decoding-chart-flip/id499927572/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 71 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 9 MB | 9 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Bob Baratta-Lorton](https://appshunter.io/developer/499646138) | [LUMINON](https://appshunter.io/developer/1896338481) |

## What reviewers say

### Decoding Chart

[App page](https://appshunter.io/ios/app/decoding-chart-flip/id499927572)

This app is part of a reading and writing curriculum designed for beginning readers or those who have struggled with literacy. It helps children transition from recognizing sounds to understanding letter spellings, using color-coded charts to guide them.

**Highlights:** Sound-to-letter decoding, Color-coded spelling guidance, Frequency-based spelling order, Part of a comprehensive reading program, Supports beginning readers

**Features:** macOS Compatibility

**In-app purchases:** none


### The World Autistic

[App page](https://appshunter.io/ios/app/the-world-autistic/id6766930482)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Mensal | $2.99 | per month |
| Annual | $14.99 | per year |


## Frequently asked questions

### Is Decoding Chart free?

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

### Is The World Autistic free?

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

### Do Decoding Chart or The World Autistic have ads?

Neither Decoding Chart nor The World Autistic shows ads.

### Which is updated more often, Decoding Chart or The World Autistic?

Decoding Chart ships an update every 71 months, and The World Autistic fortnightly. Most recently, Decoding Chart was updated on September 9, 2026 and The World Autistic on September 22, 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.*