Comparison

Celer vs BionRead

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Celer

Enhance your reading speed, focus, and comprehension with a scientifically-backed method. This app offers an immersive environment and assistive technology to help you absorb information faster and retain it better. It's an essential tool for students, professionals, and individuals with neurodivergent reading needs.

Highlights
  • Read 2-3x faster
  • Sharpen focus with immersive environment
  • Boost memory and retention
  • Assistive tool for ADHD & Dyslexia
  • Import EPUB, PDF, mobi, rtf, txt
  • Read articles and web content
  • Customizable themes
Features
Read full description

Ever finish a page and realize you remember nothing? Read the same sentence three times and still lose your place? Celer was built for exactly that. Celer guides your eyes through the text with subtle highlighting, so your attention has a track to follow. Readers with ADHD and dyslexia tell us it's the difference between fighting a page and finishing it. HOW IT HELPS • Guided highlighting keeps your place — no more re-reading the same line • Adjustable pace: the text moves with you, not against you • Distraction-free reading screen, tuned for focus • Comprehension grows because your attention stays where the words are YOUR LIBRARY, YOUR WAY • Import EPUB, PDF, MOBI, RTF and TXT • Massive free classics library, ready to read • Follow articles and news with built-in RSS • Highlights and notes that stay with your books PRIVATE BY DESIGN No accounts required, no personal data collected. Your reading stays yours. Whether you have ADHD, dyslexia, or just a phone full of distractions, Celer helps you actually finish what you start. Try it free. Celer is an assistive reading tool, not a medical device or treatment. https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

BionRead

Enhance reading comprehension and speed with a unique text formatting method. This EPUB reader helps users stay focused and retain information better, especially beneficial for those with attention difficulties.

Highlights
  • EPUB file import and reading
  • Bionic Reading mode activation
  • Focus-friendly text formatting
  • Reading progress tracking
  • Distraction-free interface
Features
Read full description

This EPUB-only reading app uses Bionic Reading to help you stay engaged, read faster, and better retain what you read. Whether you’re studying, researching, or just trying to focus, this tool enhances how you process text. Especially helpful for users with ADHD or attention difficulties. Features – Import and read EPUB files (only) – Tap to enable Bionic Reading mode – Focus-friendly text formatting – Track reading progress – Minimal interface, distraction-free experience Note: This app only supports .epub files.

Screenshots

Celer4 screens
BionRead4 screens

Verdict

The call

The clearest difference is rating: BionRead at 5.0 against Celer's 4.0. BionRead also leads on monetization model (free vs freemium). Celer's advantage is update cadence (every 10 days vs every 7 months) and ratings volume (21 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Celer sells 4 in-app purchases, starting at $7.99 per month and BionRead sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BionRead holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Celer has 21 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Celer ships an update every 10 days, BionRead every 7 months. The most recent releases landed on September 21, 2026 and July 31, 2026 respectively.

Scorecard4 real differences · 6 level
Celer versus BionRead: the parameters behind the verdict, then further details
ParameterCelerBionRead
PriceFreeFree
Rating4.0 (21 ratings)5.0 (1 ratings) — better
Positive reviews57.1% of reviews—
Number of ratings21 — better1
Update frequencyEvery 10 days — betterEvery 7 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size62 MB17 MB
Age rating4+4+
DeveloperMobile Craft MBsihan wu

Customer experience

Celer

All ratings21 ratings
Positive76.2%
Neutral0.0%
Negative23.8%
Written reviews14 reviews
Positive57.1%
Neutral0.0%
Negative42.9%

BionRead

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Celer

Subscriptions4
  • Premium month$7.991 Month
  • Premium quarter$17.993 Months
  • Premium Year7 Days trial$34.991 Year
Show 1 more
  • Premium Year Plan$79.991 Year
3 purchases

BionRead

One-time3
  • Small Tip$0.99
  • Medium Tip$2.99
  • Large Tip$5.99

Questions

Is Celer free?
Celer is free to download, with in-app purchases available.
Is BionRead free?
BionRead is free to download, with in-app purchases available.
Which has better reviews, Celer or BionRead?
BionRead is rated higher. Celer averages 4.0 out of 5 from 21 ratings, while BionRead averages 5.0 from 1 ratings.
Do Celer or BionRead have ads?
Neither Celer nor BionRead shows ads.
Which is updated more often, Celer or BionRead?
Celer ships an update every 10 days, and BionRead every 7 months. Most recently, Celer was updated on September 21, 2026 and BionRead on July 31, 2026.

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