Strobe: Speed Reading: iPhone vs Android
Strobe: Speed Reading by Jaafar Abdeen is on both the App Store and Google Play. Here are both versions together: downloads, users, revenue, ratings and chart positions, store by store with totals.
Rating
3.8 ★
64 ratings, both stores
Measured
Best rank now
#132
iPhone · 
Books Free
Books FreeMeasured
App Store
App details
App ID
6759187873
Publisher
Jaafar Abdeen
Publisher country
United States
On the store since
Feb 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
29 MB
Also listed in
Books
Google Play
App details
App ID
com.petersontuners.strobe
Publisher
Peterson Electro-musical Products, Inc.
Publisher country
United States
Content rating
Everyone
Strobe: Speed Reading downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | – | 500+ |
| Google Play | – | 5k+ Measured |
| Total | – | 5k+ Confidence |
How this is calculated
iPhone: chart positions and rating growth per country, anchored on its own Android downloads; lifetime from ratings worldwide × installs per rating. Google Play: the daily change in its exact install count. The total adds every store.
Where Strobe: Speed Reading's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 0.0 ★ | – |
| Google Play | 3.8 ★ | 64 25 written reviews |
| Both stores | 3.8 ★ weighted by ratings | 64 |
About Strobe: Speed Reading
Speed read your own books and documents, one word at a time. No ads, no subscription, no account.
Strobe is a speed reading app for iPhone, iPad, and Mac. It uses Rapid Serial Visual Presentation (RSVP): each word appears in the same spot on screen, so your eyes stay still instead of scanning across lines. Import a PDF, EPUB, plain-text, or Markdown file, share an article from Safari, or paste text, then read at 100 to 1,000 words per minute.
HOLD TO READ
• Press and hold to read. Let go to pause.
• Slide up or down while you read to change speed without losing your place.
• Swipe sideways while paused to step word by word.
• Prefer hands-free? Tap with two fingers, or switch to tap to play.
TIMING THAT FOLLOWS THE TEXT
• Smart Timing keeps longer words on screen a little longer.
• Punctuation Pauses slow down at sentence ends, commas, dashes, ellipses, and closing quotes, and you set the length of each.
• Complexity Timing speeds up common words and slows down rare ones.
• Acronyms and hyphenated words get extra time automatically.
• Blank After Sentences adds an optional moment of empty screen between sentences.
A FIXED POINT FOR YOUR EYES
• Each word lines up on a red focus letter, its Optimal Recognition Point (ORP).
• Show the previous and next words faintly on either side.
• An open quote or parenthesis stays faintly above the word until it closes.
YOUR LIBRARY
• Every document gets a cover, and Continue Reading takes you back to your exact word.
• iCloud sync keeps your library and your place in step across iPhone, iPad, and Mac.
• Share an article from Safari, or a link or text from another app, and read it without the page's menus and ads.
• Ask Siri to continue reading, or keep your current book on your Home Screen, Lock Screen, or Mac desktop with the Continue Reading widget.
• EPUB tables of contents and PDF bookmarks become chapters, each with its reading time at your speed.
• Open the full text with your place highlighted, search for any word or phrase, and tap a word to resume from there.
• Page numbers, running headers, and footers are removed on import.
• Chinese, Japanese, and Korean text is split into words, and Arabic keeps its connected letterforms.
MAKE IT YOURS
• Seven fonts, adjustable text size, four text colors, and seven highlight colors.
• A true black background for OLED screens and reading in the dark.
• Every document remembers its own speed.
• Keyboard shortcuts on Mac and iPad: Space to read, arrow keys to step, ⌘N for new text, ⌘O to import.
• Works with VoiceOver, Larger Text, and Reduced Motion.
PRIVATE BY DESIGN
Your documents are processed on your device and synced only through your own iCloud. Strobe needs no account and has no ads, analytics, or tracking.
FREE AND OPEN SOURCE
Strobe is free, with no subscription or in-app purchases. The source code is public on GitHub under the Apache 2.0 license.
Strobe can't import DRM-protected EPUBs or password-protected PDFs.
Strobe is a speed reading app for iPhone, iPad, and Mac. It uses Rapid Serial Visual Presentation (RSVP): each word appears in the same spot on screen, so your eyes stay still instead of scanning across lines. Import a PDF, EPUB, plain-text, or Markdown file, share an article from Safari, or paste text, then read at 100 to 1,000 words per minute.
HOLD TO READ
• Press and hold to read. Let go to pause.
• Slide up or down while you read to change speed without losing your place.
• Swipe sideways while paused to step word by word.
• Prefer hands-free? Tap with two fingers, or switch to tap to play.
TIMING THAT FOLLOWS THE TEXT
• Smart Timing keeps longer words on screen a little longer.
• Punctuation Pauses slow down at sentence ends, commas, dashes, ellipses, and closing quotes, and you set the length of each.
• Complexity Timing speeds up common words and slows down rare ones.
• Acronyms and hyphenated words get extra time automatically.
• Blank After Sentences adds an optional moment of empty screen between sentences.
A FIXED POINT FOR YOUR EYES
• Each word lines up on a red focus letter, its Optimal Recognition Point (ORP).
• Show the previous and next words faintly on either side.
• An open quote or parenthesis stays faintly above the word until it closes.
YOUR LIBRARY
• Every document gets a cover, and Continue Reading takes you back to your exact word.
• iCloud sync keeps your library and your place in step across iPhone, iPad, and Mac.
• Share an article from Safari, or a link or text from another app, and read it without the page's menus and ads.
• Ask Siri to continue reading, or keep your current book on your Home Screen, Lock Screen, or Mac desktop with the Continue Reading widget.
• EPUB tables of contents and PDF bookmarks become chapters, each with its reading time at your speed.
• Open the full text with your place highlighted, search for any word or phrase, and tap a word to resume from there.
• Page numbers, running headers, and footers are removed on import.
• Chinese, Japanese, and Korean text is split into words, and Arabic keeps its connected letterforms.
MAKE IT YOURS
• Seven fonts, adjustable text size, four text colors, and seven highlight colors.
• A true black background for OLED screens and reading in the dark.
• Every document remembers its own speed.
• Keyboard shortcuts on Mac and iPad: Space to read, arrow keys to step, ⌘N for new text, ⌘O to import.
• Works with VoiceOver, Larger Text, and Reduced Motion.
PRIVATE BY DESIGN
Your documents are processed on your device and synced only through your own iCloud. Strobe needs no account and has no ads, analytics, or tracking.
FREE AND OPEN SOURCE
Strobe is free, with no subscription or in-app purchases. The source code is public on GitHub under the Apache 2.0 license.
Strobe can't import DRM-protected EPUBs or password-protected PDFs.
Strobe: Speed Reading iPhone
Strobe: Speed Reading is #142 in Books Free in France and charting in 2 of 30 countries we track.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperJaafar Abdeen
CategoryBooks
PriceFree
Released
Rating★ 0.0 (0)
Version3.3
Age rating4+
First seen by us
24 Oct 2026
24 Oct 2026Installs (est.)500+ worldwide
Rating
0.0 ★
0 ratings
Measured
Best rank now
#142
Books FreeMeasured
Strobe: Speed Reading on the App Store
App details
App ID
6759187873
Publisher
Jaafar Abdeen
Publisher country
United States
On the store since
Feb 2026
Under a year
Minimum OS
iOS 17.0+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
29 MB
Also listed in
Books
Strobe: Speed Reading downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Strobe: Speed Reading's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| France | BooksFree | #142 |
| Italy | BooksFree | #132 |
Apps near Strobe: Speed Reading on the chart
Books Free, around #142.
Ratings
App Store, worldwide.
Rating
0.0 ★
0 ratings
Measured
Ratings
0
Measured
About Strobe: Speed Reading
Speed read your own books and documents, one word at a time. No ads, no subscription, no account.
Strobe is a speed reading app for iPhone, iPad, and Mac. It uses Rapid Serial Visual Presentation (RSVP): each word appears in the same spot on screen, so your eyes stay still instead of scanning across lines. Import a PDF, EPUB, plain-text, or Markdown file, share an article from Safari, or paste text, then read at 100 to 1,000 words per minute.
HOLD TO READ
• Press and hold to read. Let go to pause.
• Slide up or down while you read to change speed without losing your place.
• Swipe sideways while paused to step word by word.
• Prefer hands-free? Tap with two fingers, or switch to tap to play.
TIMING THAT FOLLOWS THE TEXT
• Smart Timing keeps longer words on screen a little longer.
• Punctuation Pauses slow down at sentence ends, commas, dashes, ellipses, and closing quotes, and you set the length of each.
• Complexity Timing speeds up common words and slows down rare ones.
• Acronyms and hyphenated words get extra time automatically.
• Blank After Sentences adds an optional moment of empty screen between sentences.
A FIXED POINT FOR YOUR EYES
• Each word lines up on a red focus letter, its Optimal Recognition Point (ORP).
• Show the previous and next words faintly on either side.
• An open quote or parenthesis stays faintly above the word until it closes.
YOUR LIBRARY
• Every document gets a cover, and Continue Reading takes you back to your exact word.
• iCloud sync keeps your library and your place in step across iPhone, iPad, and Mac.
• Share an article from Safari, or a link or text from another app, and read it without the page's menus and ads.
• Ask Siri to continue reading, or keep your current book on your Home Screen, Lock Screen, or Mac desktop with the Continue Reading widget.
• EPUB tables of contents and PDF bookmarks become chapters, each with its reading time at your speed.
• Open the full text with your place highlighted, search for any word or phrase, and tap a word to resume from there.
• Page numbers, running headers, and footers are removed on import.
• Chinese, Japanese, and Korean text is split into words, and Arabic keeps its connected letterforms.
MAKE IT YOURS
• Seven fonts, adjustable text size, four text colors, and seven highlight colors.
• A true black background for OLED screens and reading in the dark.
• Every document remembers its own speed.
• Keyboard shortcuts on Mac and iPad: Space to read, arrow keys to step, ⌘N for new text, ⌘O to import.
• Works with VoiceOver, Larger Text, and Reduced Motion.
PRIVATE BY DESIGN
Your documents are processed on your device and synced only through your own iCloud. Strobe needs no account and has no ads, analytics, or tracking.
FREE AND OPEN SOURCE
Strobe is free, with no subscription or in-app purchases. The source code is public on GitHub under the Apache 2.0 license.
Strobe can't import DRM-protected EPUBs or password-protected PDFs.
Strobe is a speed reading app for iPhone, iPad, and Mac. It uses Rapid Serial Visual Presentation (RSVP): each word appears in the same spot on screen, so your eyes stay still instead of scanning across lines. Import a PDF, EPUB, plain-text, or Markdown file, share an article from Safari, or paste text, then read at 100 to 1,000 words per minute.
HOLD TO READ
• Press and hold to read. Let go to pause.
• Slide up or down while you read to change speed without losing your place.
• Swipe sideways while paused to step word by word.
• Prefer hands-free? Tap with two fingers, or switch to tap to play.
TIMING THAT FOLLOWS THE TEXT
• Smart Timing keeps longer words on screen a little longer.
• Punctuation Pauses slow down at sentence ends, commas, dashes, ellipses, and closing quotes, and you set the length of each.
• Complexity Timing speeds up common words and slows down rare ones.
• Acronyms and hyphenated words get extra time automatically.
• Blank After Sentences adds an optional moment of empty screen between sentences.
A FIXED POINT FOR YOUR EYES
• Each word lines up on a red focus letter, its Optimal Recognition Point (ORP).
• Show the previous and next words faintly on either side.
• An open quote or parenthesis stays faintly above the word until it closes.
YOUR LIBRARY
• Every document gets a cover, and Continue Reading takes you back to your exact word.
• iCloud sync keeps your library and your place in step across iPhone, iPad, and Mac.
• Share an article from Safari, or a link or text from another app, and read it without the page's menus and ads.
• Ask Siri to continue reading, or keep your current book on your Home Screen, Lock Screen, or Mac desktop with the Continue Reading widget.
• EPUB tables of contents and PDF bookmarks become chapters, each with its reading time at your speed.
• Open the full text with your place highlighted, search for any word or phrase, and tap a word to resume from there.
• Page numbers, running headers, and footers are removed on import.
• Chinese, Japanese, and Korean text is split into words, and Arabic keeps its connected letterforms.
MAKE IT YOURS
• Seven fonts, adjustable text size, four text colors, and seven highlight colors.
• A true black background for OLED screens and reading in the dark.
• Every document remembers its own speed.
• Keyboard shortcuts on Mac and iPad: Space to read, arrow keys to step, ⌘N for new text, ⌘O to import.
• Works with VoiceOver, Larger Text, and Reduced Motion.
PRIVATE BY DESIGN
Your documents are processed on your device and synced only through your own iCloud. Strobe needs no account and has no ads, analytics, or tracking.
FREE AND OPEN SOURCE
Strobe is free, with no subscription or in-app purchases. The source code is public on GitHub under the Apache 2.0 license.
Strobe can't import DRM-protected EPUBs or password-protected PDFs.
Latest updates
3.3
What if we took the things that make doomscrolling so addictive and used them to make reading just as engaging? With Read Aloud and Pop Words In, you can bring the familiar feel of short-form video captions to your books, with words appearing in sync with a natural voice. All the dopamine of scrolling, but you're actually reading.
Read Aloud
A natural voice now reads along as the words show. Tap the speaker button in the reader, and the words keep pace with the voice at up to 450 wpm. Choose from 15 American and British English voices. The voice downloads once (about 160 MB) and runs entirely on your device, so it works offline. Read Aloud works with English documents on every Mac, and on iPhones and iPads with at least 4 GB of memory.
Pop Words In
Each word can now spring in as it appears, like word-by-word video captions. Turn it on in Settings, under Reading.
Strobe Android
Not in a tracked Google Play top chart right now.
Updated 25 Oct 2026 · rankings refresh through the day
DeveloperPeterson Strobe Tuners
CategoryMusic & Audio
Price9.99 USD
Released
Installs5k+
Rating★ 3.8 (64)
Updated
Content ratingEveryone
Rating
3.8 ★
64 ratings
Measured
Strobe on Google Play
App details
App ID
com.petersontuners.strobe
Publisher
Peterson Electro-musical Products, Inc.
Publisher country
United States
Content rating
Everyone
Strobe downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Google Play shows an exact lifetime install count; downloads per day are its daily change (measured). When Play hasn't refreshed the count, they come from new ratings and Top Free chart positions. Confidence is the chance the real number is within half to double ours.
Where Strobe's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks on Google Play
Every top 200 chart it appears in across 23 countries.
| Country | Charts | Rank |
|---|---|---|
| Not in a Google Play top chart right now. | ||
Ratings
Google Play, worldwide.
Rating
3.8 ★
64 ratings
Measured
Ratings
64
Measured
Written reviews
25
Measured
About Strobe
Strobe by Peterson: Speed and Accuracy for Perfect Tuning
Take your tuning to the next level with Strobe, by Peterson, the ultimate mobile strobe tuner app designed for musicians of all levels. Trusted by professionals and accessible to beginners, Strobe by Peterson combines unmatched speed and precision with a user-friendly interface, bringing Peterson Strobe Tuners' industry-leading tuning technology right to your fingertips.
Key Features:
High-Speed, Ultra-Accurate Tuning
Achieve the most accurate tuning available on mobile with ±0.1 cent precision. View your instrument’s pitch on a live cents-off display that provides real-time feedback, alongside a strobe image that helps you instantly see pitch accuracy. With two modes of strobe imaging—Classic and Guided—you can choose the visualization that best supports your tuning style.
Compatible with Any Instrument
From guitars and basses to violins, pianos, brass, and woodwinds, Strobe by Peterson tunes any musical instrument with unparalleled accuracy. Perfect for all types of musicians, whether you’re tuning on stage, in the studio, or practicing at home.
Sweetened Tunings and Customization
Explore Peterson’s renowned Sweetened Tunings to tailor your sound to specific instruments or musical styles. Sweetened Tunings add warmth and tonal accuracy tailored to your instrument. Plus, personalize your strobe tuning experience by selecting colors for the strobe display that suit your preferences.
Enjoy exclusive access to four Guitar and Bass Sweeteners, GTR, ACU, 12S, and bAS, and 11 Historic Temperaments.
Adjustable Concert A Reference:
Adjust Concert A from 340Hz - 540Hz in whole or 0.1Hz increments.
Transposition:
Transpose/Capo Settings adjustable from -11 - +11 half steps.
Why Choose Peterson?
Peterson Strobe Tuners have been setting the standard in tuning precision for over 75 years. Known worldwide for professional-quality tuners, Peterson has developed Strobe to bring you the most reliable tuning technology available on mobile—without any compromise in quality.
Additional Benefits:
Offline Tuning with No Ads
Tune confidently with or without an internet connection. Strobe is designed for musicians on the go, with no ads to interrupt your experience, so you can focus entirely on your sound. It's a Peterson Strobe Tuner in your pocket!
Supports Multiple Inputs
Whether you’re using the internal microphone on your device, a USB interface, or an external microphone through an adapter, Strobe delivers accurate tuning results across all input sources.
Perfect for Professionals and Beginners Alike
Strobe offers a seamless tuning experience for musicians at any level. Its intuitive interface and powerful tuning features make it ideal for beginners just starting to understand tuning nuances, as well as seasoned professionals who need accuracy they can rely on.
Download Strobe today and experience the precision and quality that have made Peterson Strobe Tuners the gold standard in tuning.
Take your tuning to the next level with Strobe, by Peterson, the ultimate mobile strobe tuner app designed for musicians of all levels. Trusted by professionals and accessible to beginners, Strobe by Peterson combines unmatched speed and precision with a user-friendly interface, bringing Peterson Strobe Tuners' industry-leading tuning technology right to your fingertips.
Key Features:
High-Speed, Ultra-Accurate Tuning
Achieve the most accurate tuning available on mobile with ±0.1 cent precision. View your instrument’s pitch on a live cents-off display that provides real-time feedback, alongside a strobe image that helps you instantly see pitch accuracy. With two modes of strobe imaging—Classic and Guided—you can choose the visualization that best supports your tuning style.
Compatible with Any Instrument
From guitars and basses to violins, pianos, brass, and woodwinds, Strobe by Peterson tunes any musical instrument with unparalleled accuracy. Perfect for all types of musicians, whether you’re tuning on stage, in the studio, or practicing at home.
Sweetened Tunings and Customization
Explore Peterson’s renowned Sweetened Tunings to tailor your sound to specific instruments or musical styles. Sweetened Tunings add warmth and tonal accuracy tailored to your instrument. Plus, personalize your strobe tuning experience by selecting colors for the strobe display that suit your preferences.
Enjoy exclusive access to four Guitar and Bass Sweeteners, GTR, ACU, 12S, and bAS, and 11 Historic Temperaments.
Adjustable Concert A Reference:
Adjust Concert A from 340Hz - 540Hz in whole or 0.1Hz increments.
Transposition:
Transpose/Capo Settings adjustable from -11 - +11 half steps.
Why Choose Peterson?
Peterson Strobe Tuners have been setting the standard in tuning precision for over 75 years. Known worldwide for professional-quality tuners, Peterson has developed Strobe to bring you the most reliable tuning technology available on mobile—without any compromise in quality.
Additional Benefits:
Offline Tuning with No Ads
Tune confidently with or without an internet connection. Strobe is designed for musicians on the go, with no ads to interrupt your experience, so you can focus entirely on your sound. It's a Peterson Strobe Tuner in your pocket!
Supports Multiple Inputs
Whether you’re using the internal microphone on your device, a USB interface, or an external microphone through an adapter, Strobe delivers accurate tuning results across all input sources.
Perfect for Professionals and Beginners Alike
Strobe offers a seamless tuning experience for musicians at any level. Its intuitive interface and powerful tuning features make it ideal for beginners just starting to understand tuning nuances, as well as seasoned professionals who need accuracy they can rely on.
Download Strobe today and experience the precision and quality that have made Peterson Strobe Tuners the gold standard in tuning.
What's new in 1.0.11
Sixth Release.
As an early user of Strobe, enjoy 4 of our most popular Sweeteners (GTR, bAS, ACU, and 12S) complimentary for the life of the app.
Bug fixes and improvements.
As an early user of Strobe, enjoy 4 of our most popular Sweeteners (GTR, bAS, ACU, and 12S) complimentary for the life of the app.
Bug fixes and improvements.