Comparison

Readwise vs Spritz App

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

Head to head
About

Readwise

This app helps you retain more of what you read by centralizing and revisiting your highlights from various reading platforms. It uses spaced repetition and active recall techniques to improve memory and offers features like tagging, note-taking, and OCR for physical books.

Highlights
  • Synchronize highlights from multiple platforms
  • Daily review habit via app and email
  • Spaced repetition and active recall
  • Tag, note, and search highlights
  • OCR for paper book highlights
  • Convert highlights to flashcards
Features
Read full description

Readwise helps you get the most out of what you read by making it fun & easy to revisit your highlights from all your favorite reading platforms in one place. Quickly synchronize your highlights from Kindle, Apple Books, Instapaper, Pocket, Medium, Goodreads, and even paper books. Then start building a daily review habit using the app and daily email. By reviewing your highlights every day, you'll retain dramatically more and you'll finally stop forgetting all the details from books you just finished! --- “Readwise is my favorite new service this year. Save highlights from Kindle, Instapaper, and now tweets... one of the best long-term personal learning tools I’ve come across.” — Caleb Hicks “Besides my Kindle, Readwise has been the most influential tech for improving my reading process.” — Blake Reichmann “If you use Kindle or Instapaper or just enjoy keeping and reading highlights, please sign up to Readwise. It will become one of your cherished services.” — Christopher Galtenberg --- ACTUALLY USE YOUR HIGHLIGHTS Highlighting is great, but why bother if you're never going to see any of your highlights again? Readwise makes it easy to quickly liberate all your highlights into one place, ensuring that you'll actually see and use them, including highlights from: • Amazon Kindle • Apple iBooks • Instapaper • Pocket • Medium • Goodreads • Twitter • Physical Books (using OCR) • Manual Input • CSV Upload STOP FORGETTING WHAT YOU READ How often do you finish a book, only to forget the key ideas two weeks later? We don't remember things by just reading them once. Readwise solves this problem using scientifically proven learning techniques called Spaced Repetition and Active Recall. Readwise resurfaces the right highlights at the right times using a daily email and an app. Readwise even makes it possible to convert your best highlights into flashcards for added retention. TAG, NOTE, SEARCH, AND ORGANIZE With your highlights all in one place, Readwise enables you to organize and connect these ideas in new ways. Use search to find a highlight instantly; use tag to organize highlights within your library; use notes to add your own annotations. HIGHLIGHT PAPER BOOKS Readwise also makes it possible to take highlights from your physical books and papers using your phone’s camera. Just snap a pic, highlight with your finger, and have your favorite highlights saved forever. --- If you are not already a Readwise subscriber, you can get started immediately with a 30-day free trial with no credit card upfront. At the end of the trial, you will not be charged unless you choose to subscribe to Readwise Full or Readwise Lite. Price may vary by location. Manage your subscription from your dashboard. --- Support: Check out readwise.io/faq or email us at hello@readwise.io Privacy Policy: https://readwise.io/tos Terms of Service: https://readwise.io/privacy

About

Spritz App

This app transforms how you read digital content by displaying words rapidly in a single window, minimizing eye movement and fatigue. It helps users increase reading speed, comprehension, and retention, allowing them to consume more information efficiently.

Highlights
  • Rapid word display
  • Adjustable reading speed
  • Website content scanning
  • Reduced eye movement
  • Improved comprehension
  • Increased retention
Features
Read full description

Welcome to the future of reading! Spritz scans the written content of any website (including your favorite news sites) and visually reads it back to you at up to 1100 words per minute. The patented rapid fire, single word display feature is fully adjustable so you can begin training your brain to read up to 2x faster. Spritz helps busy professionals, avid readers and student alike to consume digital content more efficiently. It improves reading speed, comprehension and retention. By streaming individual words through an isolated display window, Spritz minimized eye movement and fatigue. When is the last time you tried a new way of reading? Keep up with the flood of news, be in the know, and breeze through long form content with ease. Start spend less time reading and more time doing! It's free to download the app. After registering, you can try Spritzing at any speed for 2 weeks. After the free 2 week trial, the price is $2.99/month or $29.99/year. What's your time worth?

Screenshots

Readwise4 screens
Spritz App4 screens

Verdict

The call

The clearest difference is review sentiment: Readwise at 72% against Spritz App's 21%. Readwise also leads on rating (4.8 vs 2.8) and ratings volume (1.5K vs 33). Spritz App's advantage is in-app purchases (none vs 8) and iOS requirement (12.4 vs 15.5). On price, ads, monetization model 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. Readwise sells 8 in-app purchases, starting at $4.99 per month. Spritz App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Readwise holds the better App Store score, 4.8 against 2.8. That said, the two scores are not equally well evidenced: Readwise has 1.5K ratings behind it against 33, so its average is the more settled of the two. Written reviews point the same way: 72% of Readwise's written reviews are positive against 21% of Spritz App's.

UpkeepUpdate frequency

Readwise ships an update every 2 weeks, Spritz App every 6 weeks. The most recent releases landed on September 24, 2026 and August 31, 2026 respectively.

Scorecard6 real differences · 4 level
Readwise versus Spritz App: the parameters behind the verdict, then further details
ParameterReadwiseSpritz App
PriceFreeFree
Rating4.8 (1.5K ratings) — better2.8 (33 ratings)
Positive reviews72.2% of reviews — better21.2% of reviews
Number of ratings1.5K — better33
Update frequencyEvery 2 weeks — betterEvery 6 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.512.4 — better
Further details — not scored
Size110 MB25 MB
Age rating12+17+
DeveloperReadwise, IncSpritz Holding LLC

Customer experience

Readwise

All ratings1,513 ratings
Positive95.7%
Neutral1.5%
Negative2.8%
Written reviews324 reviews
Positive72.2%
Neutral7.7%
Negative20.1%

Spritz App

All ratings33 ratings
Positive33.3%
Neutral18.2%
Negative48.5%
Written reviews52 reviews
Positive21.2%
Neutral15.4%
Negative63.5%

Bugs and requests

Readwise

Reported bugs

3 issues
  • Frequent app crashes
  • Sync failures with certain accounts
  • Unreliable highlight capture

Requested features

5 requests
  • Add support for more reading apps
  • Improve sync and import capabilities
  • Introduce more customization options
  • Enhance search and organization tools
  • Develop a more intuitive mobile interface

Spritz App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Readwise

Subscriptions8
  • Readwise Lite Monthly$4.991 Month
  • Readwise Lite Monthly$6.991 Month
  • Readwise Full Monthly Plan$8.991 Month
Show 5 more
  • Readwise Full Monthly$12.991 Month
  • Readwise Lite Yearly$52.991 Year
  • Readwise Lite Yearly$66.991 Year
  • Readwise Full Yearly$94.991 Year
  • Readwise Full Yearly$119.991 Year
None

Spritz App

No in-app purchases

Questions

Is Readwise free?
Readwise is free to download, with in-app purchases available.
Is Spritz App free?
Spritz App is free to download, with no in-app purchases.
Which has better reviews, Readwise or Spritz App?
Readwise is rated higher. Readwise averages 4.8 out of 5 from 1.5K ratings, while Spritz App averages 2.8 from 33 ratings.
Do Readwise or Spritz App have ads?
Neither Readwise nor Spritz App shows ads.
Which is updated more often, Readwise or Spritz App?
Readwise ships an update every 2 weeks, and Spritz App every 6 weeks. Most recently, Readwise was updated on September 24, 2026 and Spritz App on August 31, 2026.

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