# Oneword vs ReadFast

The clearest difference is iOS requirement: Oneword at 15.1 against ReadFast's 17.4. On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Oneword sells 2 in-app purchases, starting at $14.99 per month and ReadFast sells 3 in-app purchases, starting at $2.99 per 3 months. Whichever you choose, the download price is not the number that matters.

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

Oneword ships an update every 2 weeks, ReadFast every 9 days. The most recent releases landed on August 16, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Oneword | ReadFast |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/oneword-ai-speed-reader/id6751516542/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/readfast-speed-reader/id6754703001/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 61 MB | 38 MB |
| Requires iOS | **15.1** | 17.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [James Burrus](https://appshunter.io/developer/1835539056) | [BITART](https://appshunter.io/developer/1747324278) |

## What reviewers say

### Oneword

[App page](https://appshunter.io/ios/app/oneword-ai-speed-reader/id6751516542)

Enhance your reading comprehension and retention with AI-powered tools. This app offers customizable speed reading, text simplification, automatic flashcard generation, and mind mapping to help you learn more efficiently.

**Highlights:** Customizable speed reading tools, AI text simplification, Automatic flashcard generation, Interactive mindmaps, Distraction-free interface, Progress tracking

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Oneword Premium Monthly | $14.99 | per month |
| Oneword Premium Annual | $99.00 | per year |


### 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 Oneword free?

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

### Is ReadFast free?

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

### Which has better reviews, Oneword or ReadFast?

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

### Do Oneword or ReadFast have ads?

Neither Oneword nor ReadFast shows ads.

### Which is updated more often, Oneword or ReadFast?

Oneword ships an update every 2 weeks, and ReadFast every 9 days. Most recently, Oneword was updated on August 16, 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.*