Calibre Companion Downloads & RevenueCalibre Companion · App Store
Calibre Companion is #178 in Books Free in China and charting in 3 of 30 countries we track.
Updated 11 Nov 2026 · rankings refresh through the day
DeveloperGold Tree Consulting LLC
CategoryBooks
PriceFree
Released
Rating★ 3.2 (14)
Version3.0
Age rating4+
First seen by us
27 Sep 2026
27 Sep 2026Installs (est.)50k+ worldwide
📈Charting in a new country📈Charting in a new country🆕First spotted by AppInsider📦Version 3.0🆕Released on the App Store
Full timeline · 6 events
- 📈Calibre Companion charting in a new countryAustralia
- 📈Calibre Companion charting in a new countryChina
- 📈Calibre Companion charting in a new countryUnited Kingdom
- 🆕Calibre Companion first spotted by AppInsider#76 in Top Free · Books · Russia
- 📦Calibre Companion version 3.0Welcome to Calibre Companion 3.0.
- A refreshed library with Apple system typography and more room for your books.
- Live search, improved filters and more compact browsing controls.
- Fixes for Content Server discovery, wireless connections and cloud-library browsing.
- Updated subscription handling, clearer plan information and direct access to Terms and Privacy.
- Improvements to stability and compatibility with current iOS versions.
Premium and ad-free access now require an active subscription, including for previous purchasers. Your existing books and the free library remain available without subscribing.… more - 🆕Calibre Companion released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
3.2 ★
14 ratings
Measured
Best rank now
#178
Books FreeMeasured
Calibre Companion on the App Store
App details
App ID
1171161691
Publisher
Gold Tree Consulting LLC
On the store since
Nov 2016
10 years on the store
Minimum OS
iOS 13.0+
iPhone 6s and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
1
EN
Size
69 MB
Also listed in
Books, Utilities
Calibre Companion 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. App Store 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 Calibre Companion'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.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| China | BooksFree | #178 |
| Russia | BooksFree | #130 |
 Brazil | BooksFree | #200 |
Apps near Calibre Companion on the chart
Books Free, around #178.
Ratings
App Store, worldwide.
Rating
3.2 ★
14 ratings
Measured
Ratings
14
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
3.8★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Books apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Calibre Companion
Bring your calibre library to your iPhone and iPad. Calibre Companion helps you browse, organize and transfer the books you already own.
CONNECT YOUR LIBRARY
Connect to calibre on your computer over Wi-Fi as a wireless device, browse a calibre Content Server, or access a calibre library stored with a supported cloud provider, including Dropbox, Google Drive and OneDrive.
MAKE YOUR COLLECTION EASY TO EXPLORE
Browse covers or a compact book list. Search as you type, sort your collection, and filter by authors, tags, series and other metadata. View book details and keep track of your reading state.
TAKE YOUR BOOKS WITH YOU
Download books to your device and open them in a compatible reader app. Calibre Companion organizes and transfers books; it is not an ebook reader and does not include books.
OPTIONAL PREMIUM SUBSCRIPTION
An active subscription removes ads and unlocks Premium. Existing books and the free library remain available without subscribing. An active subscription is required for Premium and ad-free access, including for previous purchasers.
Subscriptions renew automatically unless canceled in your Apple account. Prices, billing periods and any eligible introductory offer are shown before purchase. Manage or cancel your subscription in your Apple account settings.
Use calibre on your computer to manage your library. Wireless connections require a reachable computer with the corresponding calibre service enabled. Cloud browsing requires your own account and a calibre library stored with the provider.
Calibre Companion is an independent app and is not affiliated with the calibre desktop project.
Support: https://calibre-companion-website.replit.app/support
Privacy Policy: https://calibre-companion-website.replit.app/privacy
Terms of Use: https://calibre-companion-website.replit.app/terms
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
CONNECT YOUR LIBRARY
Connect to calibre on your computer over Wi-Fi as a wireless device, browse a calibre Content Server, or access a calibre library stored with a supported cloud provider, including Dropbox, Google Drive and OneDrive.
MAKE YOUR COLLECTION EASY TO EXPLORE
Browse covers or a compact book list. Search as you type, sort your collection, and filter by authors, tags, series and other metadata. View book details and keep track of your reading state.
TAKE YOUR BOOKS WITH YOU
Download books to your device and open them in a compatible reader app. Calibre Companion organizes and transfers books; it is not an ebook reader and does not include books.
OPTIONAL PREMIUM SUBSCRIPTION
An active subscription removes ads and unlocks Premium. Existing books and the free library remain available without subscribing. An active subscription is required for Premium and ad-free access, including for previous purchasers.
Subscriptions renew automatically unless canceled in your Apple account. Prices, billing periods and any eligible introductory offer are shown before purchase. Manage or cancel your subscription in your Apple account settings.
Use calibre on your computer to manage your library. Wireless connections require a reachable computer with the corresponding calibre service enabled. Cloud browsing requires your own account and a calibre library stored with the provider.
Calibre Companion is an independent app and is not affiliated with the calibre desktop project.
Support: https://calibre-companion-website.replit.app/support
Privacy Policy: https://calibre-companion-website.replit.app/privacy
Terms of Use: https://calibre-companion-website.replit.app/terms
Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Latest updates
3.0
Welcome to Calibre Companion 3.0.
- A refreshed library with Apple system typography and more room for your books.
- Live search, improved filters and more compact browsing controls.
- Fixes for Content Server discovery, wireless connections and cloud-library browsing.
- Updated subscription handling, clearer plan information and direct access to Terms and Privacy.
- Improvements to stability and compatibility with current iOS versions.
Premium and ad-free access now require an active subscription, including for previous purchasers. Your existing books and the free library remain available without subscribing.