Comparison

CogniLens vs Read Rocket

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

Head to head
About

CogniLens

This app transforms text to make it more readable for individuals with dyslexia and ADHD. Customize spacing, size, and layout, or use text-to-speech. It supports document uploads, text pasting, and photo scanning.

Highlights
  • Text transformation for readability
  • Customizable layout and spacing
  • Text-to-speech functionality
  • Document upload and text pasting
  • Photo scanning for text conversion
  • Light/dark mode and focus controls
Features
Read full description

CogniLens makes text easier to read. Built for dyslexia, ADHD, and neurodivergent readers, CogniLens lets you transform text exactly the way you like—so it’s simpler to follow, easier on your eyes, and finally feels readable. What you can do: • Upload your documents or paste text and instantly convert it into your preferred reading format • Customize the look and layout until it feels right (spacing, size, alignment, and more) • Take a photo of any page or printed text and turn it into readable text that you can transform • Tap to listen with text-to-speech instead of reading • Use light/dark mode and focus-friendly controls • Pick up where you left off with reading history and saved position Language: English (more languages coming later) CogniLens works across iOS and the web—with a Chrome extension—so your reading settings and progress can follow you anywhere. Apple Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ CogniLens Terms of Use: https://www.cognitionlabs.com/terms-of-use

About

Read Rocket

Enhance reading speed and focus with three science-backed modes: Flash, Scroll, and Speak. Import documents from various formats and sync across Apple devices. Enjoy a private, ad-free experience with a one-time purchase.

Highlights
  • Flash Mode for word-by-word reading
  • Scroll Mode with guided highlight
  • AI Speak Mode with synchronized highlight
  • Import PDFs, EPUBs, web articles, and more
  • Cross-device syncing (iPhone, iPad, Mac)
  • On-device processing for privacy
  • One-time purchase, no subscriptions
Features
Read full description

Read Rocket gives you three powerful, science-backed ways to read faster and stay focused — whether you're powering through textbooks, catching up on articles, or flying through your reading list. THREE WAYS TO READ Flash Mode displays one word at a time at a fixed focal point, eliminating the eye movements that account for most of your reading time. Set your own pace and watch your speed climb. Scroll Mode adds a guided highlight that moves through your document at a steady rhythm, keeping your attention locked and preventing the backtracking that slows you down. Speak Mode pairs high-quality AI text-to-speech with a synchronized visual highlight, engaging both your eyes and ears for stronger comprehension and retention. IMPORT ALMOST ANYTHING Bring in PDFs, EPUBs, Word documents, web articles, plain text, Markdown, HTML, RTF, OpenDocument files, and more — Read Rocket strips away the clutter so you can focus on what matters. Save articles straight from Safari or any app using your device's share menu, and they're instantly ready to read. YOUR LIBRARY, YOUR WAY Start reading on your iPhone, pick up right where you left off on your Mac or iPad. Your progress syncs automatically. Export your library to take your files where you need them. BUILT FOR APPLE Read Rocket is a native app designed for iPhone, iPad, and Mac. It supports widgets for quick access to your reading list, a share extension for effortless importing, and all the system features you expect from a great Apple app. PRIVACY FIRST Read Rocket processes everything on your device. Your documents never leave your hands. No accounts, no tracking, no ads. AI VOICES THAT SOUND NATURAL Speak Mode includes Kokoro AI voices that run entirely on your device — no internet connection needed, no data sent anywhere. Choose from American and British English accents, or use any of Apple's built-in system voices. SIMPLE, FAIR PRICING Try Read Rocket free for 7 days. Then it's just $8.99 — one time, forever yours, on all your Apple devices. No subscriptions. No recurring charges. No upsells.

Screenshots

CogniLens4 screens
Read Rocket4 screens

Verdict

The call

The clearest difference is ratings volume: Read Rocket at 3 against CogniLens's 1. CogniLens's advantage is iOS requirement (16.4 vs 18.0). On price, rating, update cadence and ads 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. CogniLens sells 2 in-app purchases, starting at $5.00 per month and Read Rocket sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

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

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on October 7, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
CogniLens versus Read Rocket: the parameters behind the verdict, then further details
ParameterCogniLensRead Rocket
PriceFreeFree
Rating5.0 (1 ratings)5.0 (3 ratings)
Positive reviews—100.0% of reviews
Number of ratings13 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.4 — better18.0
Further details — not scored
Size90 MB383 MB
Age rating4+4+
DeveloperCognition LabsJOSEPH CLAYTON KLEIN

Customer experience

CogniLens

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

Read Rocket

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

CogniLens

Subscriptions2
  • CogniLens Monthly$5.001 Month
  • CogniLens Yearly$54.001 Year
1 purchases

Read Rocket

One-time1
  • Unlock Read Rocket$8.99

Questions

Is CogniLens free?
CogniLens is free to download, with in-app purchases available.
Is Read Rocket free?
Read Rocket is free to download, with in-app purchases available.
Which has better reviews, CogniLens or Read Rocket?
CogniLens and Read Rocket are both rated 5.0 out of 5 on the App Store, from 1 and 3 ratings respectively.
Do CogniLens or Read Rocket have ads?
Neither CogniLens nor Read Rocket shows ads.
Which is updated more often, CogniLens or Read Rocket?
CogniLens ships an update every 3 weeks, and Read Rocket every 3 weeks. Most recently, CogniLens was updated on October 7, 2026 and Read Rocket on October 31, 2026.

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