• DAVdroid – CalDAV/CardDAV Sync 1
  • DAVdroid – CalDAV/CardDAV Sync 2
  • DAVdroid – CalDAV/CardDAV Sync 3
  • DAVdroid – CalDAV/CardDAV Sync 4

DAVdroid – CalDAV/CardDAV Sync

If you're encountering problems please contact us: [email protected] or have a look at our forums: https://davdroid.bitfire.at/forums/ instead of down-voting the app so that we can provide support.
DAVdroid is the only all-in-one synchronization solution for your contacts (CardDAV), calendars (CalDAV) and your tasks (based on VTODO). The app is easy to set up and integrates perfectly with your favorite calendar/contacts app (including default apps). It can also be used seperately, if you either have CalDAV, CardDAV or only Tasks.

Compatible with almost every CalDAV/CardDAV servers and services, including Nextcloud, iCloud and Synology!

After installing, you can add a DAVdroid account from within the app. See https://davdroid.bitfire.at/configuration/ for help. For more information, please see the FAQ: https://davdroid.bitfire.at/faq/ and our forums: https://davdroid.bitfire.at/forums/

Key features:

⊛ Sync your DAV calendars (CalDAV) and address-books (CardDAV) and Tasks in a single app⊛ Two-way synchronization (server ↔ client)⊛ Native Android 4+ implementation⊛ Flawless integration with your device and favorite apps⊛ Easy setup (resource auto-detection, support for self-signed certificates)⊛ Fast algorithms for high performance (CTag/ETag, limit sync time range for past events)⊛ Optimized for phones and tablets⊛ Super-secure and we respect your privacy!⊛ DAVdroid is completely open source

Important compatibility notes

For all Android 4.1 and all Samsung users: There's an Android bug that maybe causes accounts to be lost after a device reboot. To avoid this issue, please install the free app "DAVdroid JB Workaround". Samsung users: The problem doesn't occur if you download DAVdroid using Samsung Store or Amazon Store.

On some Android 4.4.2 devices, DAVdroid accounts will disappear after an app update. If you experience this issue, please install the free app "DAVdroid JB Workaround". Details: http://davdroid.bitfire.at/faq/entry/account-gone-after-updating

Attention: DAVdroid must not be moved to the SD card! This will cause strange behaviour, including account and data loss.

Get the best out of this app …

⊛ … when using with your own DAV server (Radicale, DAViCal, SabreDAV, Baikal, …) and HTTPS – so you own and control all your data while having the comfort of synchronization between various devices. Or use a hosted DAV service you trust or the one of your company.⊛ … and combine it with Evolution / Lightning / etc. on your laptop / PC

Why is it secure?

⊛ Source code is available (see homepage)⊛ No need for giving your contacts/calendars to Facebook, Google, etc. Use your own server (or a trusted one)!⊛ TLS is recommended to protected your communication so synchronization is secure even when using open Wi-Fi networks.

Successfully tested with:

⊛ AOL⊛ Apple's Calendar and Contacts Server⊛ Apple iCloud⊛ Baïkal⊛ Bitrix24⊛ contactzilla⊛ CozyCloud⊛ DAViCal⊛ eGroupware⊛ fastmail⊛ fruux⊛ GMX⊛ Group-Office⊛ Horde⊛ IceWarp⊛ iCloud⊛ Kerio Connect⊛ KolabNow⊛ Mac OS X Server⊛ mailbox.org⊛ mail.de⊛ Nextcloud⊛ openCRX⊛ Oracle Communications UCS⊛ OwnCloud⊛ OwnCube⊛ posteo.de⊛ Radicale⊛ SOGo⊛ Synology DSM⊛ Tine 2.0⊛ web.de⊛ Yahoo (calendars only)⊛ Yandex⊛ Zimbra Server

Category : Productivity

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Reviews (28)

A. G. u. Nov 4, 2018     

(installed in a HUAWEI P20 Lite or ANE-LX1)Just PERFECT with Yahoo and its Calendar ! Actually, after trying many applications failing to sync in read/write mode with YC, I ended with DAVdroid as their web page says that it has been successfully tested. It failed to connect when I tried for the 1st time. Simply because Yahoo has a 2-step security system and if it is activated, you need to generate in your Yahoo Account a special password. But it is explained in their web pages. Their support has been very reactive, and they gave the right path. Now, all event created either in my smartphone or PC are very well synchronized, read and write (you can create/modified events it will be updated both ways).

Jul. F. Oct 26, 2021     

The cornerstone for anyone engaged in a "Google sidestepping" effort: definitively worth buying (and you may also donate to the developers). Indeed, the app is doing what's is supposed to do and is doing it well w/o ads or trackers (you may check by yourself since it is open-source). Cherry on the cake: customer support is great. The only negative point is that the GUI is old fashioned but that's a minor "price to pay".

Joe. S. May 23, 2022     

Works well, but please be aware that this app will NOT sync your local contacts or calendars to your CarDav or CalDav accounts - it will merely make those accounts available to your contacts and calendar apps on the phone. So you'll see your CardDav contact in the Android Contacts app, and you can edit it and it will be updated - but the local contacts you have made on your phone will not appear in your CardDav account. Edit: Thank's for replying! Just a comment: I think maybe the use case is more like keeping two contact lists in sync (e-mail and phone) rather than migrating contacts; I'm not about to migrate from my phone to my e-mail at least :)

A. G. u. May 20, 2022     

Excellent app, but wish synchronisation could be set to a schedule, so eg it doesn't sync at night, and/or that it could be set only to sync when the screen is on.

ben. m. Apr 1, 2022     

Runs in background and you can forget about it. There is a hurdle to make sure its not blocked on android devices but once setup your calendar, contacts and tasks are synced with your server and you can just leave it alone. Support is also responsive. Very happy I got this.

Jac. N. Apr 29, 2022     

There is very annoying issue with synchronization past recurring events. The app does not respond to deletions of recurring events. Deleted recurring event from Synology server does not get synchronized with Samsung (or google) calendar on the Android phone and remains not deleted. The applications does not understand deleting recurring events. If the event is deleted it supposed to be deleted regardless of event starting date. The only way to delete past recurring event is to delete it manually from android calendar winch defeats the purpose of using this app and makes this application useless, but this does not help either because deleted events on the phone reappear on Synology server calendar after synchronization, infesting it with past events. This app only works properly with single events. Developer emailed, no response!

Ede. C. Feb 11, 2022     

As far as I can tell, (and I've done a LOT of looking) this is the only app to do what it does and so successfully. I now have all my calendars and contacts stored on my own server (not Google's!) available across all platforms. This app filled the Android gap. As long as you have all the IP/port/URL addresses you need to hand, it's easy to set up and very flexible.

Chr. T. May 20, 2022     

Does NOT work with WebDAV calendars, while "WebDAV" is prominently mentioned. You only can have WebDAV mounts (which I did not need), and then it forgot the mount when I closed the app).

Spe. L. Dec 22, 2021     

I have successfully used the DAVx5 app for syncing my local Pixel contacts and calendar entries to my Fastmail account. Most recently, some contacts would fail to sync. After contacting System Support and emailing them the Debug file, the problem was identified. Quickly, they generated a test version for me to test. Problem solved. In summary, the DAVx5 App works extremely well and their customer service is extremely responsive.

Mac. M. Mar 18, 2022     

It does what it's meant to do. It's designed well. The interface is simple and navigable. Support was helpful and competent. My question was fully answered the first time. I wish every app author was this professional.

Les. C. Jan 3, 2022     

Sync does not work at all. I cannot see any files created in my owncloud. It is set up and working with the desktop client. The android client also works but it can't auto upload. It seems these are separate issues. But for this app it will not sync and the files don't show up. Nothing abnormal in logs.

Tim. B. Apr 2, 2022     

This is a great app to back your info to Nextcloud but it would be better if it used the sd card for file storage rather than the phone memory. That could be tough to get the app modified since Google is being picky with apps using sd memory.

Joh. H. G. Mar 13, 2020     

Easy to set up. Even for my mom. Sensible defaults. Seems to work very well after that as well. One thing though... Entering the wrong password does not give a wrong password message, but something like "no dav service found". That is very confusing... (-1). But overall recommended over CardDAV-Sync, which I have been using for years. I'll update this review as I go.

Edu. M. Feb 12, 2021     

I use it with Nextcloud and everything works beautifully well. Once set up, it just doesn't exist and works in the background. I recently had an issue (it was Google calendar limitations in the end, not DAVx5) and the people from support was incredibly helpful and clear. :))) I totally recommend it if you want to go free of the classic corporate services and own your information. :)

W__. Dec 28, 2020     

I had a little difficulty connecting to my service, which is not on the list and whose own instructions for an earlier version of this software didn't work. I sent a support request and got a very cordial and prompt response from Bernhard with a solution that he had tested and found to work. It does what it's supposed to and with a very easy to understand interface and the developer offers the highest level of support. I'm not sure what else I could ask for. I'm a very happy customer :)

foo. b. Dec 14, 2018     

Once created, account URL cannot be changed anymore. since that's why I bought the app (got somehow the impression that it is possible) this app is not better than free apps. UI is more polished, but constantly nagging about 'scheduled sync' despite being told 'no' several times already. all in all, nothing worth paying for.

Ben. P. Apr 4, 2022     

Beware of massive data loss when used with Nextcl oud contacts! My last review was taken down because I told the truth!

Xan. Dec 4, 2021     

I've used it for years, always meets my needs really well. I use it to sync my android (running Lineage os) with the thunderbird calendar (Lightning). The only time Ive ever had a problem, support was very friendly and helpful, and it turns out the problem had nothing to do with DAVx5, but rather with my email server.

Sam. T. Nov 23, 2021     

Update: Syncing stopped altogether and calendar wouldn't appear on SG S9. This occurred spontaneously with no obvious trigger after years of use. After extensive searching (and advice fortunately provided by the app and dontkillmyapp), the solution was to enable the "keep in foreground" option in the apps "in-app notification" settings. Original: Works reliably syncing my personal and business calendars to Nextcloud. Critical productivity tool for my needs.

Nei. B. Jun 1, 2020     

My favourite apps do their job quietly and effectively, improving the functionality of your device, their authors instinctively compensating for missing or underdeveloped features. In this way they become essential, in the truest sense of that worn out superlative. DAVx is certainly one of those apps. Essential, truly.

Jan. R. Feb 13, 2019     

Seems to work very well. I don't regret the money. However, there are still some issues which I don't know if they're caused by DAVx5. The main one is that postal address in contacts is not syncinc. Well, It was synced for the first time but whenever I edit it, either on the server side or on my phone, the change does not appear on the other side. Changing the address type (Home/Work) works fine but the content of the address does not. This is, however, something I probably can live with. Any help would be appreciated.

Moo. W. Mar 4, 2020     

Long time user of Card/CalDAV-Sync. Started getting cheesed of with the contact app of different phones changing the labels of the phone numbers of contacts so found the excellent replacement of Simple Mobile Tools. The problem was CalDAV-Sync just would not work without the default calendar configured. Swapped to DAVx5 which allowed me to disable the default calendar and was really impressed with how easy it was to setup and all the different functions and logs available.

Tim. S. Dec 20, 2020     

Easy setup, fast and friendly support. This app delivers on what it promises to do. I tried many CalDAV and CardDAV apps but they were difficult to configure and often just did not work. This one works perfectly. Well worth the fair price.

Ed. L. Mar 18, 2021     

App just runs. It sits in the background and uses few resources. It integrates seamlessly with Yahoo! Calendar online and Simple Calendar on Android. Syncs are very quick. I did have one problem (with Yahoo, not DAVx5) and customer support was quick, helpful, and nailed the problem for me. Highly recommended.

Mar. A. May 10, 2020     

I have bought and installed this app after that one I was using before left me without contacts on the phone and no support for two months. This app syncs well, has many custom aware features, it is a one stop shop for contacts, calendar and tasks and best of all it has blazing fast support from the developer.

Mik. F. Jan 13, 2020     

An app that "just works". Having spent ages trying to get an acceptable bidirectional sync solution between Android and Horde, I gave up, and installed this. And now everything syncs both ways, and you can forget its even there. Ought to be in Android by default, but that's life.

Art. B. Apr 1, 2021     

This app works perfectly ! It took a few minutes to understand how to set it and once the set up done correctly, all my calendars were well synced ! Just in case don't forget the additional app ICSx5 to sync some shared calendars (the app will invite you to do it if needed). Thanks again to the dev's for this very good job !

Rus. J. Aug 16, 2020     

I've used this for a few years now. It's excellent and has always been a reliable product. This spring however I'd begun to have synch issues. errors. When I finally got focused. I worked with Bernhard of the Bitmovin team and his speedy response got this fixed in less than an hour. Great product and amazing service.. thank you