# Early Readers Lab vs STAPP AI

The clearest difference is in-app purchases: STAPP AI at none against Early Readers Lab's 1. STAPP AI also leads on update cadence (every 5 days vs every 7 months) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Early Readers Lab sells 1 one-off in-app purchase. STAPP AI asks for nothing beyond the download.

Early Readers Lab ships an update every 7 months, STAPP AI every 5 days. The most recent releases landed on November 4, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Early Readers Lab | STAPP AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 days** |
| Size | 85 MB | 88 MB |
| Requires iOS | 16.4 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [TagMango Inc](https://appshunter.io/developer/1611765353) | [Students Travel App](https://appshunter.io/developer/1803418464) |

## What reviewers say

### Early Readers Lab

[App page](https://appshunter.io/ios/app/early-readers-lab/id6566174451)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Book Club Membership: One Time | $9.99 | one-time |


### STAPP AI

[App page](https://appshunter.io/ios/app/stapp-ai/id6743551789)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Early Readers Lab free?

Early Readers Lab is free to download, with in-app purchases available.

### Is STAPP AI free?

STAPP AI is free to download, with no in-app purchases.

### Do Early Readers Lab or STAPP AI have ads?

Neither Early Readers Lab nor STAPP AI shows ads.

### Which is updated more often, Early Readers Lab or STAPP AI?

Early Readers Lab ships an update every 7 months, and STAPP AI every 5 days. Most recently, Early Readers Lab was updated on November 4, 2026 and STAPP AI 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.*