# Phonics Inventory vs The World Autistic

The clearest difference is in-app purchases: Phonics Inventory at none against The World Autistic's 2. Phonics Inventory also leads on iOS requirement (10.0 vs 15.0). The World Autistic's advantage is update cadence (fortnightly vs every 4 months) and device support (3 vs 1). On price and ads there is nothing between them.

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

Phonics Inventory ships an update every 4 months, The World Autistic fortnightly. The most recent releases landed on October 21, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Phonics Inventory | The World Autistic |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/phonics-inventory/id899200953/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 28 MB | 9 MB |
| Requires iOS | **10.0** | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Houghton Mifflin Harcourt](https://appshunter.io/developer/409368007) | [LUMINON](https://appshunter.io/developer/1896338481) |

## What reviewers say

### Phonics Inventory

[App page](https://appshunter.io/ios/app/phonics-inventory/id899200953)

This digital tool assesses reading fluency and foundational skills for students in grades 3-12+. It measures decoding, sight word recognition, and letter recognition quickly and efficiently. The assessment can be used for universal screening, intervention placement, and progress monitoring.

**Highlights:** Measures decoding and sight word fluency, Assesses letter recognition, Tracks reading progress, Universal screening, Intervention placement, Administered on iPads

**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 Phonics Inventory free?

Phonics Inventory 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 Phonics Inventory or The World Autistic have ads?

Neither Phonics Inventory nor The World Autistic shows ads.

### Which is updated more often, Phonics Inventory or The World Autistic?

Phonics Inventory ships an update every 4 months, and The World Autistic fortnightly. Most recently, Phonics Inventory was updated on October 21, 2026 and The World Autistic on October 25, 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.*