# Read Boost vs ReadFast

The clearest difference is in-app purchases: Read Boost at none against ReadFast's 3. Read Boost also leads on ratings volume (3 vs 1). ReadFast's advantage is ads (none vs shown) and update cadence (every 9 days vs every 5 months). On price, rating, device support and iOS requirement there is nothing between them.

Both are free to download. ReadFast sells 3 in-app purchases, starting at $2.99 per 3 months. Read Boost asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Read Boost against 5.0 for ReadFast. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

Read Boost ships an update every 5 months, ReadFast every 9 days. The most recent releases landed on June 6, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Read Boost | ReadFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (3 ratings)](https://appshunter.io/ios/app/read-boost/id6740498520/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/readfast-speed-reader/id6754703001/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 9 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 13 MB | 38 MB |
| Requires iOS | **16.6** | 17.4 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jonathan Goldman](https://appshunter.io/developer/1774235948) | [BITART](https://appshunter.io/developer/1747324278) |

## 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


### ReadFast

[App page](https://appshunter.io/ios/app/readfast-speed-reader/id6754703001)

Enhance reading speed, focus, and comprehension with advanced RSVP technology and PDF import. Features ADHD-friendly tools like ambient soundscapes and visual guides for distraction-free learning. Includes text-to-speech and progress tracking.

**Highlights:** Advanced RSVP speed reading, PDF and document import, Focus mode with ambient soundscapes, AI-powered bionic reading, Text-to-speech functionality, ADHD-friendly features, Reading progress tracking

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month Premium | $2.99 | per 3 months |
| 6 Month Premium | $4.99 | per 6 months |
| Yearly Premium | $6.99 | per year |


## Frequently asked questions

### Is Read Boost free?

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

### Is ReadFast free?

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

### Which has better reviews, Read Boost or ReadFast?

Read Boost and ReadFast are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.

### Do Read Boost or ReadFast have ads?

Read Boost shows ads; ReadFast does not.

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

Read Boost ships an update every 5 months, and ReadFast every 9 days. Most recently, Read Boost was updated on June 6, 2026 and ReadFast on September 11, 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.*