Readest - eBook Reader: iPhone vs Android
Readest - eBook Reader gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Readest - eBook Reader by Bilingify LLC 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
4.3 ★
1.3k ratings, both stores
Measured
Best rank now
#39
iPhone · 
Books Grossing
Books GrossingMeasured
App Store
App details
App ID
6738622779
Publisher
Bilingify LLC
Publisher country
United States
Minimum OS
iOS 16.4+
Content rating
4+
Languages
33
AR BN NL EN FR DE EL HE HI HU ID IT …
Size
71 MB
Google Play
App details
App ID
com.bilingify.readest
Publisher
Bilingify LLC
Publisher country
United States
Content rating
Everyone
Readest - eBook Reader downloads & installs
Both stores, worldwide. Bands are open; exact numbers are free with an account.
| Store | Downloads / day | Lifetime installs |
|---|---|---|
| iPhone | 100+ | 10k+ |
| Google Play | 100+ | 100k+ Measured |
| Total | 500+ Confidence | 100k+ 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 Readest - eBook Reader'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
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
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.
In-app revenue
Worldwide, what users spend before Apple and Google take their fee.
| Store | Per day | Per month | Share |
|---|---|---|---|
| App Store | |||
| Google Play | |||
| Total | Confidence | 100% |
Business model: In-app purchase-led
How Readest - eBook Reader makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Both stores, across every country we track.
Ratings
Both stores. Store data, measured.
| Store | Rating | Ratings |
|---|---|---|
| App Store | 4.2 ★ | 17 |
| Google Play | 4.4 ★ | 1.3k 99 written reviews |
| Both stores | 4.3 ★ weighted by ratings | 1.3k |
About Readest - eBook Reader
Readest is an ebook reader for people who read a lot, and who want their books, notes and reading position on whatever device is nearest.
Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown in one library. Pull books from OPDS catalogs or from your own Calibre server. Read, annotate, listen, translate.
Made for iPhone and iPad
• CarPlay, so you can keep listening on the road with playback controls on the dashboard
• Download read-aloud voices per book and listen with no connection at all
• Add books from Files, Mail or any share sheet, and read them in place instead of copying them into a second library
• Open up to four books at once on iPad and arrange them how you like
Reading
• Paginated or scrolling, with custom fonts, themes, spacing and margins
• Vertical text for CJK books
• Contrast and refresh tuned for e-ink screens
• Full-text search inside a book
Your library
• Browse, search and download from OPDS catalogs and public libraries
• Connect to Calibre or Calibre-Web, covers and metadata included
• Organize with bookshelf groups you can rename
Notes
• Highlights, bookmarks and structured notes
• Copy a highlight together with a deep link back to the passage
• Export your annotations
Listening and languages
• Text-to-speech with downloadable offline voices
• Translate a sentence, a page, or an entire book
• Wikipedia and dictionary lookup without leaving the page
Sync
• Readest Cloud, or bring your own: iCloud, Google Drive, OneDrive, WebDAV, S3
• KOReader sync keeps your progress in step with your e-reader
• iPhone, iPad, Mac, all other platforms and the web
Readest is open source.
Support: [email protected]
Privacy Policy: https://readest.com/privacy-policy
Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown in one library. Pull books from OPDS catalogs or from your own Calibre server. Read, annotate, listen, translate.
Made for iPhone and iPad
• CarPlay, so you can keep listening on the road with playback controls on the dashboard
• Download read-aloud voices per book and listen with no connection at all
• Add books from Files, Mail or any share sheet, and read them in place instead of copying them into a second library
• Open up to four books at once on iPad and arrange them how you like
Reading
• Paginated or scrolling, with custom fonts, themes, spacing and margins
• Vertical text for CJK books
• Contrast and refresh tuned for e-ink screens
• Full-text search inside a book
Your library
• Browse, search and download from OPDS catalogs and public libraries
• Connect to Calibre or Calibre-Web, covers and metadata included
• Organize with bookshelf groups you can rename
Notes
• Highlights, bookmarks and structured notes
• Copy a highlight together with a deep link back to the passage
• Export your annotations
Listening and languages
• Text-to-speech with downloadable offline voices
• Translate a sentence, a page, or an entire book
• Wikipedia and dictionary lookup without leaving the page
Sync
• Readest Cloud, or bring your own: iCloud, Google Drive, OneDrive, WebDAV, S3
• KOReader sync keeps your progress in step with your e-reader
• iPhone, iPad, Mac, all other platforms and the web
Readest is open source.
Support: [email protected]
Privacy Policy: https://readest.com/privacy-policy
Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Readest - eBook Reader iPhone
Readest - eBook Reader gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Readest - eBook Reader is #82 in Books Grossing in China and charting in 5 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperBilingify LLC
CategoryBooks
PriceFree
Released
Rating★ 4.2 (17)
Version0.12.10
Age rating4+
First seen by us
24 Sep 2026
24 Sep 2026Installs (est.)10k+ worldwide
Rating
4.2 ★
17 ratings
Measured
Best rank now
#82
Books GrossingMeasured
Readest - eBook Reader on the App Store
App details
App ID
6738622779
Publisher
Bilingify LLC
Publisher country
United States
Minimum OS
iOS 16.4+
Content rating
4+
Languages
33
AR BN NL EN FR DE EL HE HI HU ID IT …
Size
71 MB
Readest - eBook Reader 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 Readest - eBook Reader'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
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
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.
In-app revenue
Worldwide, what users spend in Readest - eBook Reader before Apple and Google take their fee.
How this is calculated
Not in an overall Top Grossing chart, only in category charts: each category position is converted to the overall position it corresponds to, then priced on the same rank-to-revenue curve, inside the part of each market the charted apps leave over.
Business model: In-app purchase-led
How Readest - eBook Reader makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| China | BooksGrossing | #82 |
| China | BooksFree | #100 |
| India | BooksGrossing | #39 |
 Germany | BooksFree | #166 |
 France | BooksFree | #173 |
| Russia | BooksFree | #177 |
Apps near Readest - eBook Reader on the chart
Books Grossing, around #82.
Ratings
App Store, worldwide.
Rating
4.2 ★
17 ratings
Measured
Ratings
17
Measured
About Readest - eBook Reader
Readest is an ebook reader for people who read a lot, and who want their books, notes and reading position on whatever device is nearest.
Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown in one library. Pull books from OPDS catalogs or from your own Calibre server. Read, annotate, listen, translate.
Made for iPhone and iPad
• CarPlay, so you can keep listening on the road with playback controls on the dashboard
• Download read-aloud voices per book and listen with no connection at all
• Add books from Files, Mail or any share sheet, and read them in place instead of copying them into a second library
• Open up to four books at once on iPad and arrange them how you like
Reading
• Paginated or scrolling, with custom fonts, themes, spacing and margins
• Vertical text for CJK books
• Contrast and refresh tuned for e-ink screens
• Full-text search inside a book
Your library
• Browse, search and download from OPDS catalogs and public libraries
• Connect to Calibre or Calibre-Web, covers and metadata included
• Organize with bookshelf groups you can rename
Notes
• Highlights, bookmarks and structured notes
• Copy a highlight together with a deep link back to the passage
• Export your annotations
Listening and languages
• Text-to-speech with downloadable offline voices
• Translate a sentence, a page, or an entire book
• Wikipedia and dictionary lookup without leaving the page
Sync
• Readest Cloud, or bring your own: iCloud, Google Drive, OneDrive, WebDAV, S3
• KOReader sync keeps your progress in step with your e-reader
• iPhone, iPad, Mac, all other platforms and the web
Readest is open source.
Support: [email protected]
Privacy Policy: https://readest.com/privacy-policy
Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown in one library. Pull books from OPDS catalogs or from your own Calibre server. Read, annotate, listen, translate.
Made for iPhone and iPad
• CarPlay, so you can keep listening on the road with playback controls on the dashboard
• Download read-aloud voices per book and listen with no connection at all
• Add books from Files, Mail or any share sheet, and read them in place instead of copying them into a second library
• Open up to four books at once on iPad and arrange them how you like
Reading
• Paginated or scrolling, with custom fonts, themes, spacing and margins
• Vertical text for CJK books
• Contrast and refresh tuned for e-ink screens
• Full-text search inside a book
Your library
• Browse, search and download from OPDS catalogs and public libraries
• Connect to Calibre or Calibre-Web, covers and metadata included
• Organize with bookshelf groups you can rename
Notes
• Highlights, bookmarks and structured notes
• Copy a highlight together with a deep link back to the passage
• Export your annotations
Listening and languages
• Text-to-speech with downloadable offline voices
• Translate a sentence, a page, or an entire book
• Wikipedia and dictionary lookup without leaving the page
Sync
• Readest Cloud, or bring your own: iCloud, Google Drive, OneDrive, WebDAV, S3
• KOReader sync keeps your progress in step with your e-reader
• iPhone, iPad, Mac, all other platforms and the web
Readest is open source.
Support: [email protected]
Privacy Policy: https://readest.com/privacy-policy
Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Latest updates
0.12.10
– Library: You can now organize books into configurable bookshelves, tag books in bulk
– Audiobooks: You can download Audiobookshelf books for offline listening, stream audiobooks from OPDS catalogs and BookOrbit
– Reading: You can now open HTML files as books, and select, highlight, and look up text in Paragraph Mode
– Sync: Reading progress refreshes when you return to the app, WebDAV sync is more reliable, and Readwise exports now include bookmarks
– PDF: Page-turn animations now work on PDFs, comics, and fixed-layout books, and wide comic pages get a spread of their own
– KOReader: Added background sync, group downloads, and more library controls, and highlights you delete stay deleted
– Dictionary: Pronunciations can play automatically on lookup, accented words are easier to find
– More: Backups are much faster and keep the screen awake, and fixed freezes on App launch and in image-heavy chapters
Readest: EPUB & PDF Reader Android
Readest: EPUB & PDF Reader gets 500+ downloads a day worldwide (AppInsider estimate, September 2026, rounded down to a band).
Readest: EPUB & PDF Reader is #106 in Books & Reference Free on Google Play in Japan and charting in 9 of 15 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
DeveloperReadest
CategoryBooks & Reference
PriceFree
Released
Installs100k+
Rating★ 4.4 (1.3k)
Updated
Content ratingEveryone
Rating
4.4 ★
1.3k ratings
Measured
Best rank now
#106
Books & Reference FreeMeasured
Readest: EPUB & PDF Reader on Google Play
App details
App ID
com.bilingify.readest
Publisher
Bilingify LLC
Publisher country
United States
Content rating
Everyone
Readest: EPUB & PDF Reader 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 Readest: EPUB & PDF Reader'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
Retention · share of new users still active
Day 1
Day 7
Day 30
Time spent · per daily user
Average time spent Pro
min a day
Sessions a day Pro
Time per session Pro
min
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.
In-app revenue
Worldwide, what users spend in Readest: EPUB & PDF Reader before Apple and Google take their fee.
How this is calculated
Not in an overall Top Grossing chart, only in category charts: each category position is converted to the overall position it corresponds to, then priced on the same rank-to-revenue curve, inside the part of each market the charted apps leave over.
Business model: In-app purchase-led
How Readest: EPUB & PDF Reader makes money: subscriptions, one-off purchases and ads.
In-app purchases
One-off purchases
/mo
of revenue
Where it ranks on Google Play
Every top 200 chart it appears in across 15 countries.
| Country | Charts | Rank |
|---|---|---|
| Japan | Books & ReferenceFree | #106 |
 United States | Books & ReferenceFree | #197 |
 United Kingdom | Books & ReferenceFree | #126 |
| Germany | Books & ReferenceFree | #139 |
 Canada | Books & ReferenceFree | #98 |
| France | Books & ReferenceFree | #127 |
| Russia | Books & ReferenceFree | #87 |
 Australia | Books & ReferenceFree | #129 |
 Italy | Books & ReferenceFree | #103 |
Apps near Readest: EPUB & PDF Reader on the chart
Books & Reference Free, around #106.
Quran Majeed - Qibla & Athan#101
OOC: The Playable Anime#102
Public Reading of Scripture#103
zLibrary: Book Reader PDF/EPUB#104
MMBook Ocean - Myanmar Book#105
名字由来net～日本の姓氏解説アプリ 家紋検索 家系図作成#107
Valorant Tracker - Valking.gg#108
MOJi辞書: 日语学习词典｜能力考JLPT｜翻译查单词#109
Bible For Women-Holy Bible KJV#110
SO-52E 取扱説明書#111
Ratings
Google Play, worldwide.
Rating
4.4 ★
1.3k ratings
Measured
Ratings
1.3k
Measured
Written reviews
99
Measured
About Readest: EPUB & PDF Reader
Readest is a modern, open-source ebook reader for people who read a lot, and want their books, notes and progress to follow them everywhere.
Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown, and tune the reading experience down to the last detail.
Read your way
• Paginated or scrolling modes with smooth page-turn animations
• Custom fonts, themes, spacing, margins and columns
• Vertical text for CJK books
• Built for e-ink, with contrast tuned for slow-refresh screens
• Open up to four books side by side for research and comparison
Your whole library
• Browse and download from OPDS catalogs and public libraries
• Connect to Calibre and Calibre-Web, covers and metadata included
• Organize with custom bookshelf groups
• Full-text search inside a book
Notes that last
• Highlights, bookmarks and structured notes
• Copy a highlight together with a deep link back to the passage
• Export your annotations
Listen and understand
• Text-to-speech with downloadable offline voices and Android Auto support
• Translate a sentence, a page, or an entire book
• Wikipedia and dictionary lookup without leaving the page
Sync everywhere
• Readest Cloud, or bring your own: Google Drive, OneDrive, WebDAV, S3
• KOReader sync keeps your progress in step with your e-reader
• Android, iOS, macOS, Windows, Linux and the web
Readest is open source. Questions or ideas: [email protected]
Privacy policy: https://readest.com/privacy-policy
Open EPUB, PDF, MOBI, AZW3, FB2, CBZ, TXT and Markdown, and tune the reading experience down to the last detail.
Read your way
• Paginated or scrolling modes with smooth page-turn animations
• Custom fonts, themes, spacing, margins and columns
• Vertical text for CJK books
• Built for e-ink, with contrast tuned for slow-refresh screens
• Open up to four books side by side for research and comparison
Your whole library
• Browse and download from OPDS catalogs and public libraries
• Connect to Calibre and Calibre-Web, covers and metadata included
• Organize with custom bookshelf groups
• Full-text search inside a book
Notes that last
• Highlights, bookmarks and structured notes
• Copy a highlight together with a deep link back to the passage
• Export your annotations
Listen and understand
• Text-to-speech with downloadable offline voices and Android Auto support
• Translate a sentence, a page, or an entire book
• Wikipedia and dictionary lookup without leaving the page
Sync everywhere
• Readest Cloud, or bring your own: Google Drive, OneDrive, WebDAV, S3
• KOReader sync keeps your progress in step with your e-reader
• Android, iOS, macOS, Windows, Linux and the web
Readest is open source. Questions or ideas: [email protected]
Privacy policy: https://readest.com/privacy-policy
What's new in 0.12.8
• Reading: Customize the information shown in headers and footers, resize text with zoom shortcuts
• Sync: You can choose whether to use Readest Cloud before signing in, and recover missing covers during sync
• Annotations: You can now import highlights, bookmarks, and reading progress from ReadEra, and sync your notes and highlights to Notion
• Audiobooks: You can now stream ebook-only titles from Audiobookshelf
• Text-to-Speech: use Apple Enhanced and Premium voices on t...
• Sync: You can choose whether to use Readest Cloud before signing in, and recover missing covers during sync
• Annotations: You can now import highlights, bookmarks, and reading progress from ReadEra, and sync your notes and highlights to Notion
• Audiobooks: You can now stream ebook-only titles from Audiobookshelf
• Text-to-Speech: use Apple Enhanced and Premium voices on t...