# Every AIDu vs Prepd

The clearest difference is in-app purchases: Every AIDu at none against Prepd's 5. Prepd's advantage is ads (none vs shown) and update cadence (every 2 weeks vs every 3 months). On price and device support there is nothing between them.

Both are free to download. Prepd sells 5 in-app purchases, starting at $39.99 per month. Every AIDu asks for nothing beyond the download.

Every AIDu ships an update every 3 months, Prepd every 2 weeks. The most recent releases landed on October 20, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Every AIDu | Prepd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/every-aidu/id6747190128/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 2 weeks** |
| Monetization | Ad-supported | — |
| Size | 34 MB | 27 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Haneul Jang](https://appshunter.io/developer/1783701259) | [Patrick Hardy](https://appshunter.io/developer/1884707959) |

## What reviewers say

### Every AIDu

[App page](https://appshunter.io/ios/app/every-aidu/id6747190128)

This app offers unlimited practice tests and personalized AI-powered review for the digital SAT. It provides targeted English and Math materials with instant feedback to help users improve their core skills and achieve their college goals.

**Highlights:** Unlimited digital SAT practice tests, Personalized AI learning, Targeted English and Math review, Instant feedback and solutions, Progress tracking and insights

**Features:** macOS Compatibility

**In-app purchases:** none


### Prepd

[App page](https://appshunter.io/ios/app/prepd-test-prep-and-study/id6760706987)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Prepd Base | $39.99 | per month |
| Prepd Basic | $39.99 | per month |
| Prepd Pro AI | $68.99 | per month |
| Prepd Max AI | $98.99 | per month |
| Prepd AI Pro with Atlas | $98.99 | per month |


## Frequently asked questions

### Is Every AIDu free?

Every AIDu is free to download, with no in-app purchases.

### Is Prepd free?

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

### Do Every AIDu or Prepd have ads?

Every AIDu shows ads; Prepd does not.

### Which is updated more often, Every AIDu or Prepd?

Every AIDu ships an update every 3 months, and Prepd every 2 weeks. Most recently, Every AIDu was updated on October 20, 2026 and Prepd 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.*