---
title: "Calibre Sync - Reviews, Revenue and Downloads in United States | Apple App Store"
description: "Lifetime support, no extra charge, no subscription fee.  Calibre Sync can: - help you access full Calibre libraries on most popular personal cloud services, including Google Drive, Dropbox, Microsoft "
---

# Calibre Sync — United States
> All in one Calibre libraries

![Calibre Sync App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/a5/44/fe/a544fe91-2ed4-e239-2eac-7a35891bd4f3/AppIcon-0-0-1x_U007emarketing-0-8-0-0-85-220.png/434x0w.png)

**Developer:** [DUONG THUY PHAM](https://apptail.io/developer/duong-thuy-pham-RZYX)
**Category:** Utilities
**Rating:** 3.6/5 (47 ratings)
**Price:** Free
**Bundle ID:** com.trucnguyen.calibresync
**Store:** Apple App Store
**Country:** United States
**Version:** 6.7.0 (released 2026-03-29)
**Original Release:** 2022-02-16
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id1609138078)
**AppTail Page:** [https://apptail.io/app/calibre-sync-ncMe/united-states](https://apptail.io/app/calibre-sync-ncMe/united-states)

## Calibre Sync Description
Lifetime support, no extra charge, no subscription fee.

Calibre Sync can:
- help you access full Calibre libraries on most popular personal cloud services, including Google Drive, Dropbox, Microsoft OneDrive, Box, pCloud, MEGA, iCloud, WebDav, Nextcloud and OwnCloud - simply the most supported for cloud services.
- transform your device to a smart device emulator that connects to Calibre wirelessly. It even supports Calibre libraries on your external storage and from Calibre Content Server or Calibre-web with amazing performance.

Move your Calibre libraries to your favourite cloud providers and access those libraries via Calibre Sync to browse, sort, search, download and read books on your device. Calibre Sync also supports multiple libraries across multiple Drive, Dropbox, OneDrive, Box, pCloud, MEGA, iCloud, WebDav, Nextcloud, and OwnCloud accounts simultaneously.

Features:
- Unlimited Calibre libraries
- Wireless connect to Calibre effortlessly as Smart device
- Easy switch between multiple libraries across multiple accounts
- Automatic check and update libraries when launching the app
- Pull, Refresh or Remove a library from Calibre Sync
- Support different book list layouts: List - detailed and simple, Grid, and Carousel
- View your library statistics
- Send books to Kindle with ease
- Search across all of your available libraries
- Search books by title, authors, and even in comments and custom columns
- Filter books on authors, series, tags, language, publishers, formats and in custom columns
- Sort libraries by title, author, ratings, and several Date options - ascending and descending
- Filter downloaded books
- Configuration for each library download location
- Support for custom columns in book details view
- Quick access to book download and share via slideable list view
- Zoom the book cover
- Support &quot;swipe from book to book&quot; in book details view
- Email or share a copy of downloaded book
- Open downloaded book in your book reader application to read a book
- View the file size of each book format
- Show book identifiers and link to source (like ISBN, Amazon, Google Books, Goodreads, etc)
- Dark/light themes
- And many more features...

To move your Calibre library to cloud services:
1) Open Calibre on your Laptop/PC/Desktop
2) Select &quot;Switch/create library...&quot; from the Calibre menu
3) Select an empty folder on your Cloud drive in &quot;New Location&quot; drop down
4) Select &quot;Move current library to new location&quot;, then press OK
5) Wait for cloud sync to complete.
6) Then you are ready to use Calibre Sync.

To move your Calibre library to your phone storage, just copy the library directory to your phone storage.

Notes:
- Calibre Sync is not a reader app. You must install and use one of the many excellent reader apps available.
- Only Microsoft OneDrive for Personal accounts (shared) are supported. Please email us if you observe any inconsistencies.
- Due to restriction in Box API, Calibre Sync must acquire write permission in order to download files, download is not a read action on Box. Calibre Sync guarantees that it will not perform any write actions against your data in Box cloud account.
- Calibre Sync use WebDav API of Nextcloud and OwnCloud services, and it requires case sensitive file system to work properly. Therefore, you must make sure that your libraries are set up on case sensitive file system (Linux, recent MacOS, Windows NTFS with case sensitive enabled).

Please leave your reviews and suggestions to help us improve the app. For more information see 

Calibre is © Kovid Goyal - calibre-ebook.com
Drive is © Google LLC.
Dropbox is © Dropbox inc.
OneDrive is © Microsoft
Box is © Box inc.
pCloud is © pCloud AG
Nextcloud is © Nextcloud GmbH
OwnCloud is © OwnCloud
MEGA is © MEGA
iCloud is © Apple Inc

## Calibre Sync Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/21/8f/3f/218f3f5f-6b04-1010-1694-af133318ed43/d424e278-d44c-4c88-bc6c-c709e82c64cf_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_12.48.28.png/1242x2688.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/f0/ac/57/f0ac57b7-bbdc-cd1a-a514-c9a4503f8b4d/238c6ebd-77d3-4dad-aafc-937a94594bf3_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_12.25.04.png/1242x2688.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/cc/53/9a/cc539a17-c546-fdb6-7959-57334392c38c/cc7ac084-32e1-42b0-95a5-a7446baf0c01_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_12.44.49.png/1242x2688.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/9a/8b/d1/9a8bd103-e27f-94a6-2b68-10f54456c8fa/91bc5762-3eec-42c7-9826-97eeb35134d4_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_13.15.47.png/1242x2688.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/15/6f/99/156f996a-7242-1493-d5a7-0a627b10a742/3fbe2783-16df-4657-9ef6-cc4e7bc03bf3_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_13.19.38.png/1242x2688.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/4b/4a/69/4b4a696c-e176-76b8-95a3-476c479aed13/14fa07f4-03f2-4723-9c57-2e7e713bca84_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_14.01.10.png/1242x2688.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/Purple116/v4/08/cb/bb/08cbbbdb-bbd4-e9c8-5574-c4b9ac245a5e/d0b94f12-0b86-4401-85fc-91ad4edf7224_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_13.20.46.png/1242x2688.png)
- [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/6b/6e/57/6b6e57aa-b08e-5e14-d009-8bd7e4a40cbe/c812084a-814f-449b-81b7-4fd93dc8ba98_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_14.03.16.png/1242x2688.png)
- [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/Purple126/v4/f2/c5/e2/f2c5e2e3-acb4-34cd-c5d1-56b5c50e7edb/efc57d7d-0268-4ec5-bdec-d210d911c097_Simulator_Screen_Shot_-_iPhone_11_Pro_Max_-_2022-02-12_at_22.23.00.png/1242x2688.png)

## Calibre Sync Rating Breakdown in United States
- 5 stars: 26 (55%)
- 4 stars: 3 (6%)
- 3 stars: 5 (11%)
- 2 stars: 1 (2%)
- 1 stars: 12 (26%)

## Calibre Sync Reviews in United States

### *---- "Stopped working"
It worked the first time I did a sync but then failed on each subsequent atttempt. I would have given it a 5 before then but now it is useless and the developers haven’t responded to any support mesaages.
-- Jfish12, 2024-10-20

### ***** "Very Nice app, and Lovely Hidden Tetris Game"
Very Nice app to connect your cloud based Calibre Library and have it mobile. 

Also Loved the Hidden Tetris Game when clicking the logo of the Calibre App inside the app.
-- Omar Mra., 2024-07-08

### **--- "Used to be great"
This was my go to app for managing ePubs. I recently had to switch to Box for online storage and, while the app works great between two pcs, the iPad app no longer works (at all). Unfortunately, I want to read epubs on my iPad. Thus, the value of Calibre is dramatically reduced. The fact that there is no support just makes the problem worse.
-- klxtofrx, 2023-11-01

### ***** "Ok cool, that’s all I needed"
Searchable read-only access to a cloud-located calibre library, which can download a book and punt it over to a compatible reader app. Clean interface, no weird nonsense!
-- nfagerlund, 2023-07-20

### ***-- "Syncs Most books"
The app worked great at first but stopped syncing new books added to Calibre. I hoped that changing cloud services would help but it did not. I wish iCloud worked with this app to try that. It’s been 5 months since the dev said iCloud would be integrated in the near future. With what books I can sync the app is great.
-- BrrrPeoples, 2023-01-12

### ***-- "A fan"
This app is fantastic. It does what it&#039;s supposed to do, but it could use more features like displaying bookshelves, etc. I have both CC and this app; I&#039;m attempting to use this as my primary, but it lacks features. It&#039;s a good beginning.
-- Silly44, 2023-01-11

### ***** "Best Calibre Mobile App"
Best app for using your Calibre library On-The-Go.
-- none4234, 2022-12-08

### ***-- "Not there yet"
Wanted to like this app as a replacement for Calibre Companion. Not quite there yet. Had issues connecting to Calibre as a smart device, ultimately went for the connect to server option. Reached out to the developer and never replied back. Some things are not as intuitive as they should be. FAQ needs updating. Even better yet would be a nice YouTube video. Oh well. Let’s see how frequently this app is updated.
-- CamilleSnob, 2022-11-15

### *---- "Doesnt work at all"
I paid for a version on my tablet and phone it doesnt work wry disapointed i tried the google drive sync says cant find calibre file its not a calibre file its where i store my backup books idk how to export a calibre specific file calibre doesnt offer this so idk what a calibre file they are speaking of second cant connect to the server at all i can connect on a different free app so i know it works its just this app doesnt allow me to read the book just download it, thats not what i want i want to read it within this app. This app doesnt work whatsoever. Must be all the other reviews are fake. I want my money back this is such a scam.
-- meiwein, 2022-10-24

### ***** "It works flawlessly"
Best app ever to connect to your Calibre libraries on the cloud. Very well thought and full of useful features like handling of multiple libraries and local storage of books in a folder accessible with the Files app.
-- piovac, 2022-10-18

### *---- "Horrible"
The app won’t find any of my files on local storage where it shows to place the files.
-- BihartSt, 2022-10-09

### ***-- "Failed to download metadata"
It seems to be good app, but when I&#039;m trying to connect with my webdav server Nutstore, I failed. The app said failed to download metadata.
-- duanwuchen, 2022-08-26

### ****- "Seems useful, but no iCloud"
This is exactly the app I was looking for with one exception: there is no iCloud integration. I hope the developers can eventually add that functionality.
-- Brett Gershon, 2022-08-15

### ***-- "Just opened up a whole new world…a crack"
I have thousands of ebooks and have been limited to accessing them via Calibre on my pc, which I then use to transfer to my Kindle. 

Yes I can access the books via OneDrive on my iPad but it’s not the smoothest or best managed. So I was delighted to find this app. Actually, I’m delighted to find this app works as advertised and quite quickly. It’s much easier to find and download my books and digital comics.

My one critique is that it wants to use the Mail app, rather than what the user has set their default mail app to be. I prefer Outlook so I never bothered to setup the Mail app. When I tried to use the “send to Kindle” function it failed because of this limitation. And because I’ve configured my accounts in Outlook and the mail setting, I can’t add them to Mail.

While I appreciate being able to download and read on any of my iOS devices, I prefer doing so in Kindle as it syncs progress across all devices.

For me, five stars would be:
Fix the app to use the configured mail app
Have an option for “automatically send to Kindle”
Set preferred reading apps by type ie set Comix as the preferred app for cbr
Being able to launch preferred app from this app
-- benleal, 2022-08-07

### ***** "One of the better Calibre related apps"
It’s more like a 4~4.5-star app, however, comparing to other calibre-related apps makes this one feel like a 5~6-star app. By the way, what is virtual view? Couldn’t find introduction in official site.
-- lionlies, 2022-08-06

### ***** "A must have app for readers"
I have a large Calibre library on my computer, And this app lets me access it on my iPad. I don’t know how I lived it before I found it. I like it so much that I bought it for my android phone and my iPad.
-- MrMLK, 2022-04-19

### ***** "A real gem"
Fantastic app.  Powerful filtering with ability to save views using virtual views. The zoomable grid layout is amazing.

No subscription required is icing on the cake
-- JDStodd, 2022-04-02

[View all Calibre Sync reviews and detailed analytics on AppTail](https://apptail.io/account/signup?utm_campaign=ai-crawl&amp;utm_content=reviews)


## Calibre Sync Store Rankings
| Chart | Country | Category | Rank |
|-------|---------|----------|------|
| Top Paid | France | Utilities | #64 |
| Top Paid | United States | Utilities | #147 |
| Top Paid | Romania | Utilities | #345 |
| Top Paid | Belgium | Utilities | #352 |
| Top Paid | Spain | Utilities | #436 |
| Top Paid | Philippines | Utilities | #491 |

## Calibre Sync Discovered Keywords
- calibre companion
- calibre sync

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## Calibre Sync Available In
- [United States](https://apptail.io/app/calibre-sync-ncMe/united-states)
- [Germany](https://apptail.io/app/calibre-sync-ncMe/germany)
- [France](https://apptail.io/app/calibre-sync-ncMe/france)
- [Spain](https://apptail.io/app/calibre-sync-ncMe/spain)
- [United Kingdom](https://apptail.io/app/calibre-sync-ncMe/united-kingdom)
- [Australia](https://apptail.io/app/calibre-sync-ncMe/australia)
- [Switzerland](https://apptail.io/app/calibre-sync-ncMe/switzerland)
- [Belgium](https://apptail.io/app/calibre-sync-ncMe/belgium)
- [Canada](https://apptail.io/app/calibre-sync-ncMe/canada)
- [Italy](https://apptail.io/app/calibre-sync-ncMe/italy)
- [Netherlands](https://apptail.io/app/calibre-sync-ncMe/netherlands)
- [China](https://apptail.io/app/calibre-sync-ncMe/china)
- [Austria](https://apptail.io/app/calibre-sync-ncMe/austria)
- [Russia](https://apptail.io/app/calibre-sync-ncMe/russia)
- [Ireland](https://apptail.io/app/calibre-sync-ncMe/ireland)
- [Denmark](https://apptail.io/app/calibre-sync-ncMe/denmark)
- [Japan](https://apptail.io/app/calibre-sync-ncMe/japan)
- [South Korea](https://apptail.io/app/calibre-sync-ncMe/south-korea)
- [Taiwan](https://apptail.io/app/calibre-sync-ncMe/taiwan)
- [Hungary](https://apptail.io/app/calibre-sync-ncMe/hungary)
- [Brazil](https://apptail.io/app/calibre-sync-ncMe/brazil)
- [Türkiye](https://apptail.io/app/calibre-sync-ncMe/turkey)
- [Vietnam](https://apptail.io/app/calibre-sync-ncMe/vietnam)
- [New Zealand](https://apptail.io/app/calibre-sync-ncMe/new-zealand)
- [India](https://apptail.io/app/calibre-sync-ncMe/india)
- [United Arab Emirates](https://apptail.io/app/calibre-sync-ncMe/united-arab-emirates)
- [Sweden](https://apptail.io/app/calibre-sync-ncMe/sweden)
- [Poland](https://apptail.io/app/calibre-sync-ncMe/poland)
- [Madagascar](https://apptail.io/app/calibre-sync-ncMe/madagascar)
- [North Macedonia](https://apptail.io/app/calibre-sync-ncMe/north-macedonia)
- [Malta](https://apptail.io/app/calibre-sync-ncMe/malta)
- [Mexico](https://apptail.io/app/calibre-sync-ncMe/mexico)
- [Malaysia](https://apptail.io/app/calibre-sync-ncMe/malaysia)
- [Nigeria](https://apptail.io/app/calibre-sync-ncMe/nigeria)
- [Norway](https://apptail.io/app/calibre-sync-ncMe/norway)
- [Nepal](https://apptail.io/app/calibre-sync-ncMe/nepal)
- [Peru](https://apptail.io/app/calibre-sync-ncMe/peru)
- [Philippines](https://apptail.io/app/calibre-sync-ncMe/philippines)
- [Pakistan](https://apptail.io/app/calibre-sync-ncMe/pakistan)
- [Portugal](https://apptail.io/app/calibre-sync-ncMe/portugal)
- [Qatar](https://apptail.io/app/calibre-sync-ncMe/qatar)
- [Romania](https://apptail.io/app/calibre-sync-ncMe/romania)
- [Saudi Arabia](https://apptail.io/app/calibre-sync-ncMe/saudi-arabia)
- [Singapore](https://apptail.io/app/calibre-sync-ncMe/singapore)
- [Slovenia](https://apptail.io/app/calibre-sync-ncMe/slovenia)
- [Slovakia](https://apptail.io/app/calibre-sync-ncMe/slovakia)
- [Thailand](https://apptail.io/app/calibre-sync-ncMe/thailand)
- [Ukraine](https://apptail.io/app/calibre-sync-ncMe/ukraine)
- [Uzbekistan](https://apptail.io/app/calibre-sync-ncMe/uzbekistan)
- [South Africa](https://apptail.io/app/calibre-sync-ncMe/south-africa)
- [Armenia](https://apptail.io/app/calibre-sync-ncMe/armenia)
- [Argentina](https://apptail.io/app/calibre-sync-ncMe/argentina)
- [Azerbaijan](https://apptail.io/app/calibre-sync-ncMe/azerbaijan)
- [Bahrain](https://apptail.io/app/calibre-sync-ncMe/bahrain)
- [Brunei](https://apptail.io/app/calibre-sync-ncMe/brunei)
- [Belarus](https://apptail.io/app/calibre-sync-ncMe/belarus)
- [Chile](https://apptail.io/app/calibre-sync-ncMe/chile)
- [Colombia](https://apptail.io/app/calibre-sync-ncMe/colombia)
- [Cyprus](https://apptail.io/app/calibre-sync-ncMe/cyprus)
- [Czechia](https://apptail.io/app/calibre-sync-ncMe/czechia)
- [Dominican Republic](https://apptail.io/app/calibre-sync-ncMe/dominican-republic)
- [Algeria](https://apptail.io/app/calibre-sync-ncMe/algeria)
- [Ecuador](https://apptail.io/app/calibre-sync-ncMe/ecuador)
- [Egypt](https://apptail.io/app/calibre-sync-ncMe/egypt)
- [Finland](https://apptail.io/app/calibre-sync-ncMe/finland)
- [Greece](https://apptail.io/app/calibre-sync-ncMe/greece)
- [Hong Kong SAR China](https://apptail.io/app/calibre-sync-ncMe/hong-kong)
- [Indonesia](https://apptail.io/app/calibre-sync-ncMe/indonesia)
- [Israel](https://apptail.io/app/calibre-sync-ncMe/israel)
- [Iceland](https://apptail.io/app/calibre-sync-ncMe/iceland)
- [Kuwait](https://apptail.io/app/calibre-sync-ncMe/kuwait)
- [Kazakhstan](https://apptail.io/app/calibre-sync-ncMe/kazakhstan)
- [Lebanon](https://apptail.io/app/calibre-sync-ncMe/lebanon)
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- [Latvia](https://apptail.io/app/calibre-sync-ncMe/latvia)

---

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