# Bionic Reading® vs Ondelia

The clearest difference is in-app purchases: Ondelia at none against Bionic Reading®'s 4. Ondelia also leads on update cadence (every 3 days vs every 3 weeks). Bionic Reading®'s advantage is chart position (#172 vs unranked) and iOS requirement (15.1 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Bionic Reading® sells 4 in-app purchases, starting at $2.95 per month. Ondelia asks for nothing beyond the download.

Bionic Reading® ships an update every 3 weeks, Ondelia every 3 days. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Bionic Reading® | Ondelia |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.4 (155 ratings)](https://appshunter.io/ios/app/bionic-reading/id1644658030/reviews)** | — |
| Number of ratings | **155** | — |
| Positive reviews | 26.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Monetization | Freemium | — |
| Best chart rank | **#172** | — |
| Size | 52 MB | 27 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 17+ | 4+ |
| Developer | [Bionic Reading AG](https://appshunter.io/developer/1659624105) | [Jonathan Jayet](https://appshunter.io/developer/6809228482) |

## What reviewers say

### Bionic Reading®

[App page](https://appshunter.io/ios/app/bionic-reading/id1644658030)

**Currently charting:** #172 Top Free · Magazines & Newspapers (US App Store)

This app enhances reading speed and comprehension by highlighting the most concise parts of words. It offers customizable reading modes to aid users with reading difficulties and improve focus for all.

**Highlights:** Text revision for faster reading, Customizable reading modes, Save reading position across platforms, Bookmarks for favorite pages, Upload files, text, or websites for conversion, Export to EPUB, PDF, WORD, Light and Dark Mode

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bionic Reading® Premium | $2.95 | per month |
| Bionic Reading® Premium Plus | $12.99 | per month |
| Bionic Reading® Premium | $30.49 | per year |
| Bionic Reading® Premium Plus | $128.99 | per year |

**What reviewers like**

- 🚀 Faster reading
- 🔍 Helpful for ADHD and dyslexia
- 👍 Life-changing for some users

**What reviewers complain about**

- 💰 Expensive subscription model
- 🐛 Buggy and unreliable app
- 🚫 Limited functionality (no PDF support)
- 🔒 Difficult to cancel subscription

**Reported bugs**

- App crashes or freezes
- Subscription issues (unable to upgrade, cancel, or get refunds)
- Conversion errors and failed file uploads

**Requested features**

- Integrate with more platforms (Kindle, web browser)
- Offer one-time purchase option instead of subscription
- Improve customer support and communication


### Ondelia

[App page](https://appshunter.io/ios/app/ondelia/id6809228480)

**Features:** macOS Compatibility, Siri integration, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Bionic Reading® free?

Bionic Reading® is free to download, with in-app purchases available.

### Is Ondelia free?

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

### Do Bionic Reading® or Ondelia have ads?

Neither Bionic Reading® nor Ondelia shows ads.

### Which is updated more often, Bionic Reading® or Ondelia?

Bionic Reading® ships an update every 3 weeks, and Ondelia every 3 days. Most recently, Bionic Reading® was updated on October 30, 2026 and Ondelia on October 24, 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.*