# BirdieSync > Syncs iPhone contacts and events with desktop applications securely and privately. (iPhone/iPad app by Callicia.) - Source: https://appshunter.io/ios/app/birdiesync/id386987593 (this page in markdown: same URL + `.md`) - Developer: [Callicia](https://appshunter.io/developer/386987596) - Category: Productivity, Utilities - Price: Free - Rating: 5.00/5 from 1 App Store ratings · 29 written reviews indexed - Age rating: 4+ - Requires: iOS 8.0 · 4 MB - Languages: American English, French (France) - Released: 2010-08-28 - Data updated: 2026-08-24 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/birdiesync/id386987593/reviews.md ## What is BirdieSync? Synchronize your contacts and events between your iPhone and Mozilla Thunderbird, Lightning and Sunbird on your PC. Keep your information up to date automatically: every modification on any device is automatically transferred to the other device. Keep your data private: your personal data is not stored in the cloud. It is directly synchronized between your device and your desktop computer through a secure connection and never goes through any third-party server. BirdieSync supports: contact photos, multiple address books and calendars, contact groups and categories, recurring events and alarms, ICS, calDAV, WCAP, Google Calendar types. Note: this app requires BirdieSync on your PC (19.95 €). You can download a fully-functional version and try it out free for 21 days (only Windows is supported). ## Key features - Automatic synchronization - Direct device-to-device transfer - Contact photo support - Multiple address books and calendars - Recurring events and alarms - Secure connection ## Recent user reviews (10 of 29) All indexed reviews: https://appshunter.io/ios/app/birdiesync/id386987593/reviews.md ### 5/5 — Great product that works seamlessly. *2023-08-01* I’ve been using this product for years and it works well. Easily stncs Thunderbird and Lightning with the iPhone. Recommended. ### 5/5 — Super Mozilla-Sync *2016-01-06, version 3.0.0.4* Ich benutze das Tool seit Jahren, um meine iPhone-Kontakte mit Mozilla Thunderbird zu synchronisieren. Es war immer etwas umständlich, ist aber seit der Desktop-Version 3.0 einfach super geworden! Tolles Handwerkszeug. Wenn auch einmalig etwas teuer eine absolute Bereicherung, leider nur in Englisch. Ps: Auch die aktuelle Version funktioniert im Zusammenspiel iPhone 5s und Windows 7 super! ### 1/5 — Flopp *2015-12-08, version 3.0.0.4* Aktuelle Versionen von BirdieSync Desktop und IPhon 5s funktionieren nicht. Habe sämtliche Settings durch probiert.......Schade! ### 5/5 — Fantastic *2015-07-03, version 2.3.9.0* I use BirdieSync with an iPhone and with Thunderbird. It is simply fantastic. I have used both v2 and v3 BirdySync and am running v3 with Thunderbird 38. It is very good software. It is also outstanding support. I've been using it for 6m and cannot recommend it highly enough. ### 5/5 — Great App to manage multiple calendars and phone books! *2015-03-20, version 2.3.9.0* We have iphones and Samsung Galaxy in our house and this manages both just fine. ### 5/5 — BirdieSync rulez *2014-10-01, version 2.3.9.0* The software works solid and stable and customer service even is a stunner! ### 5/5 — Gute Software *2014-07-17, version 2.3.8.0* Im Vergleich zu dem, was Outlook oder Itunes so an Sync-Grausamkeiten bietet, ist das Birdie ganz okay. Funktioniert, lediglich die auf den IPhone, Rechner und in Thunderbird verteilten Einstellungen sind etwas mühsam zu beherrschen. Aber wie gesagt - jeder der mal ein WLAN Sync via iTunes versucht hat, der lächelt hier nur müde. Bin zufrieden. ### 1/5 — Bad quality for the price you pay *2014-01-14, version 2.3.5.0* This application is overpriced. When trying to synchronize events on with iOS 5.1x device, the synchronization crashes all the time. Moreover, when synchronizing both ways the synchronization process creates duplicates of the birthdays calendar on the mobile device. ### 1/5 — warning! *2013-10-05, version 2.3.5.0* Contacts belong cetainly to our most important data. (In my case i have collected around 3000 business contacts over the last years.) The software that you are using to synchronize your contacts should be 100% reliable. Unfortunately this software is not: - It duplicates contacts during synchronization, in doing so crippling the duplicated datasets in a weird fashion, the result are totally bloated contact sets. The duplicate detection of the Thunderbird plugin does not detect a single duplicate afterwards... - BirdieSync always tries to delete several thousand contacts from my iPhone, also those that were synchronized just before... I spent hours over hours with the software in order to make it do what i wanted: No way (despite the fact that I am computer scientist who makes his living with writing software). I don't like to imagine what non computer scientists could make out of their data with this software... What a pity! ### 1/5 — Is not a free app *2013-03-08, version 2.3.4.0* It is not a free app make sure you read the fine print before you waste your time. ## Frequently asked questions about BirdieSync ### Does BirdieSync have ads? No, BirdieSync is ad-free, allowing for an uninterrupted user experience. ### What is the price of BirdieSync? BirdieSync is free to download and use on your iPhone. However, it requires the purchase of BirdieSync for PC, which costs 19.95 €. ### How often is BirdieSync updated? The latest version of BirdieSync was released on May 2, 2021. While the last update was in 2021, the app has maintained a 5.0-star rating from its users. ### What devices does BirdieSync support? BirdieSync is available for iPhone and iPod devices. The desktop component of BirdieSync is currently only supported on Windows. ### Is my data safe with BirdieSync? Yes, BirdieSync prioritizes data privacy. Your personal data is synchronized directly between your devices through a secure connection and is not stored on any third-party cloud servers. ### Can I try BirdieSync before buying the PC version? Yes, you can download a fully-functional version of BirdieSync for PC and try it out for free for 21 days before making a purchase. ### What types of data can BirdieSync synchronize? BirdieSync supports synchronizing contact photos, multiple address books and calendars, contact groups and categories, and recurring events and alarms. It also supports various calendar formats like ICS and CalDAV. ### What is the age rating for BirdieSync? BirdieSync has an age rating of 4+, making it suitable for a wide range of users. ## Version history (last 5 releases) ### 3.0.0.13 — 2021-05-02 On iOS 14.5 or later, finding BirdieSync server or resolving the server hostname could fail while trying to connect. At first time, a permission popup window will now be displayed asking authorization to access to local network. ### 3.0.0.12 — 2020-12-23 - In some cases, alarm in recurring event with modified or deleted occurrence could be not synchronized to mobile device ### 3.0.0.11 — 2020-12-18 - If several BirdieSync servers were simultaneously running on the local network, app could freeze when searching for BirdieSync hosts - If user cancelled the search for BirdieSync hosts, status was still displaying "Searching for BirdieSync host" ### 3.0.0.10 — 2020-11-18 - Contact with notes could fail to synchronize - A contact whose instance message address was cleared could later fail to synchronize - Attendee email address is now synchronized as well as organizer - Save button in Settings window could be incorrectly greyed out - App no longer exits when going to background but connection with desktop server is automatically closed ### 3.0.0.9 — 2018-01-12 - On iOS 11, the modification of a contact with an identical photo could lead to an unexpected error - The full height of the iPhone X is now used ## Apps similar to BirdieSync | App | Rating | Price | Category | | --- | --- | --- | --- | | [MGRDP](https://appshunter.io/ios/app/mgrdp/id1617100477) | — | Free | Productivity | | [SYNCING.NET - Sync P2P Private](https://appshunter.io/ios/app/syncingnet-sync-p2p-private/id1179859324) | — | Free | Productivity | | [Conversatum:Thought Management](https://appshunter.io/ios/app/conversatumthought-management/id6472140632) | 5.0 (3) | Free | Productivity | | [OCEANSMART](https://appshunter.io/ios/app/oceansmart/id1511591937) | 5.0 (3) | Free | Productivity | | [nContacts](https://appshunter.io/ios/app/ncontacts/id6450862973) | — | Free | Productivity | | [Keep Contacts](https://appshunter.io/ios/app/keep-contacts/id399754046) | 5.0 (1) | Free | Productivity | ## Related topics [birdiesync](https://appshunter.io/ios/topics/birdiesync) · [resync](https://appshunter.io/ios/topics/resync) · [tjx synchrony](https://appshunter.io/ios/topics/tjx-synchrony) --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*