Comparison

Celer vs Bionic Reading®

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

Bionic Reading®

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
Read full description

All 6 Bionic Reading® Apps are available as a free or a Premium version – 6 for 1 Price. The one and only from Switzerland is a “Life Changer” for Lisa, a “Game Changer” for Tommy and “Absolutely Mind Blowing” for Kelly. Bionic Reading® Faster. Better. More focused. Reading. Bionic Reading® for Apple iOS, iPadOS, macOS, other platforms and web. We offer you the free version “Discover” and the subscriptions “Premium” and “Premium Plus”. BIONIC READING® IN NUMBERS. • 882+ Million: TikTok search results • 1+ Billion: Mentioned in communities • 233 Countries: Where our users come from • 5.9 Million: Website visitors • 3 Platforms: With viral posts • 50+ Viral posts: From our users Bionic Reading® revises texts in such a way that the most concise parts of the words are highlighted. This guides the eye over the text and the brain remembers words already learned more quickly. EVERYONE IS DIFFERENT. The Bionic Reading® reading mode can be individually adapted to the needs of all readers. This flexibility allows Bionic Reading® to provide maximum customization for all users. YOU GET. • Save precious time.
 • Gain advantages.
 • Learn new things faster.
 • Expand your knowledge.
 • Improve your skills. • 
Noise-free with more focus.
 • Less distraction. FEATURES. • Download as Word file. • You can now smoothly continue your reading experience with “Bionic Reading® Reader” across platforms, as the last reading position is now saved. • Bookmarks now allow you to mark your favorite pages. • Advanced Bionic Reading® Settings with Part of speech. • Bionic Reading® Reader for your reading experience. • Bionic Reading® Library for your favourites. • Synced content. • Fixation, Sccade, Opacity. • Fixation via Letters or Syllables. • Details. • Colors. • Light Mode. Dark Mode. • Upload File, Text or Website, convert and read in the Apps. • File Conversion. • Text Conversion. • Website Conversion. • Send to Amazon® Kindle. • Download as EPUB, PDF, WORD. • Carefully selected Fonts. • Designed for the Latin alphabet. +15% HAVE READING DIFFICULTIES. More than 15% of the population has great difficulty reading and understanding texts (ADHD, dyslexia). We have received feedback from people with ADHD that thanks to Bionic Reading® they immediately understood the content of various texts the first time they read them, which was impossible without Bionic Reading®. COMMENTS AND FEEDBACK. Jessica: “Having ADHD and processing issues means that I read very slow because my brain can’t focus on the words enough to both read them and process what they mean at a decent pace. Using Bionic Reading® has allowed me to feel functional and productive when I’m reading something lengthy – it’s such a GAME CHANGER!” Lisa: “I have not read fiction for 20 years. I read what I have to read. It almost hurts my brain to read regular type. But now I will be reading fiction again! Bionic Reading® works for me and I can read 2–3 times faster! AMAZING! This is a LIFE CHANGER! Thank You!” Patrick: “OK, Bionic Reading® is the real deal. I already read quickly and this doubled it.” Reaction from Daniel: “Holy smokes you’re not kidding!” Carla: “WOW! I could read quickly and fluently using Bionic Reading®. Doing this helped me understand the context of the paragraph much better than when I have to squint and focus on each word, which tires me out and I lose focus. Bionic Reading® is brilliant!” Nestor: “Your tool is gorgeous, It’s helping me a lot. My sight is reduced because one of my transplanted corneas has become opaque and Bionic Reading® is helping me a lot to read easier and comprehend faster.” TYPOGRAPHY. DESIGN. SWITZERLAND. With over 26 years of experience in typography, we know how important it is to get text right. It’s the small details that matter enormously to make you read better. INTERNATIONAL AWARDS FOR BIONIC READING®. • German Innovation Award 2023: Gold (highest distinction) • German Design Award 2023: Gold (highest distinction)

Screenshots

Celer4 screens
Bionic Reading®4 screens

Verdict

The call

The clearest difference is rating: Celer at 4.0 against Bionic Reading®'s 2.4. Celer also leads on review sentiment (57% vs 26%) and update cadence (every 10 days vs every 3 weeks). Bionic Reading®'s advantage is chart position (#189 vs unranked) and ratings volume (151 vs 21). On price, ads, in-app purchases and monetization model 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 Bionic Reading® sells 4 in-app purchases, starting at $2.95 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Celer holds the better App Store score, 4.0 against 2.4. That said, the two scores are not equally well evidenced: Bionic Reading® has 151 ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 57% of Celer's written reviews are positive against 26% of Bionic Reading®'s.

UpkeepUpdate frequency

Celer ships an update every 10 days, Bionic Reading® every 3 weeks. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 5 level
Celer versus Bionic Reading®: the parameters behind the verdict, then further details
ParameterCelerBionic Reading®
PriceFreeFree
Rating4.0 (21 ratings) — better2.4 (151 ratings)
Positive reviews57.1% of reviews — better26.3% of reviews
Number of ratings21151 — better
Update frequencyEvery 10 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
Best chart rank#189 — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size62 MB52 MB
Age rating4+17+
DeveloperMobile Craft MBBionic Reading AG

Customer experience

Celer

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

Bionic Reading®

All ratings151 ratings
Positive30.5%
Neutral6.6%
Negative62.9%
Written reviews160 reviews
Positive26.3%
Neutral5.6%
Negative68.1%

Bugs and requests

Celer

Not enough reviews yet to summarise bugs or requests.

Bionic Reading®

Reported bugs

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

Requested features

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

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
4 purchases

Bionic Reading®

Subscriptions4
  • Bionic Reading® Premium$2.951 Month
  • Bionic Reading® Premium Plus$12.991 Month
  • Bionic Reading® Premium$30.491 Year
Show 1 more
  • Bionic Reading® Premium Plus$128.991 Year

Questions

Is Celer free?
Celer is free to download, with in-app purchases available.
Is Bionic Reading® free?
Bionic Reading® is free to download, with in-app purchases available.
Which has better reviews, Celer or Bionic Reading®?
Celer is rated higher. Celer averages 4.0 out of 5 from 21 ratings, while Bionic Reading® averages 2.4 from 151 ratings.
Do Celer or Bionic Reading® have ads?
Neither Celer nor Bionic Reading® shows ads.
Which is updated more often, Celer or Bionic Reading®?
Celer ships an update every 10 days, and Bionic Reading® every 3 weeks. Most recently, Celer was updated on September 21, 2026 and Bionic Reading® on September 23, 2026.

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