# Read Boost vs Predo

The clearest difference is in-app purchases: Read Boost at none against Predo's 1. Read Boost also leads on iOS requirement (16.6 vs 18.0). Predo's advantage is ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price and device support there is nothing between them.

Both are free to download. Predo sells 1 one-off in-app purchase. Read Boost asks for nothing beyond the download.

Read Boost ships an update every 5 months, Predo every 2 months. The most recent releases landed on June 6, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | Read Boost | Predo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/read-boost/id6740498520/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Ad-supported | — |
| Size | 13 MB | 18 MB |
| Requires iOS | **16.6** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Goldman](https://appshunter.io/developer/1774235948) | [Cappsule Teknoloji](https://appshunter.io/developer/1676687521) |

## What reviewers say

### Read Boost

[App page](https://appshunter.io/ios/app/read-boost/id6740498520)

This app uses AI to help you read faster and understand more. It offers adjustable reading speeds and tracks your progress to improve focus and comprehension. Ideal for students and professionals seeking a more efficient way to consume information.

**Highlights:** AI-powered text summarization, Adjustable reading speeds, Progress tracking, Optimized focus, Enhanced comprehension

**Features:** macOS Compatibility

**In-app purchases:** none


### Predo

[App page](https://appshunter.io/ios/app/predo-speed-reading-trainer/id6755594891)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Predo Pro | $4.99 | one-time |


## Frequently asked questions

### Is Read Boost free?

Read Boost is free to download, with no in-app purchases.

### Is Predo free?

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

### Do Read Boost or Predo have ads?

Read Boost shows ads; Predo does not.

### Which is updated more often, Read Boost or Predo?

Read Boost ships an update every 5 months, and Predo every 2 months. Most recently, Read Boost was updated on June 6, 2026 and Predo on August 21, 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.*