Threema

Threema


Threema is a mobile messaging app that puts security and privacy first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages. You can use Threema completely anonymously, without giving away personal information such as phone numbers or email addresses. Your messages will be deleted from our servers immediately after being delivered. Therefore, you're perfectly protected against data abuse.

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SECURE END-TO-END ENCRYPTION
Compared to other popular messaging apps (including those claiming to use encryption), even we as the server operator have absolutely no way to read your messages.

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HIGH LEVEL OF DATA PROTECTION
Threema takes data privacy very seriously. We strive to store only the absolutely necessary information for the shortest possible time. We guarantee that we do not collect, evaluate or sell customer data. That is our promise.

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STANDARD FEATURES
Threema is not only secure but also very user friendly and covers the basic features of a mobile messenger.

• write text messages
• send videos and pictures
• share locations
• send voice messages
• create group chats and add new members
• synchronize your contacts (optional)

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SPECIAL FEATURES
Threema differs from other mobile messenger by some special features.

• all text and voice messages as well as pictures, videos, and GPS locations are asymmetrically end-to-end encrypted
• even group chats are end-to-end encrypted
• verify the identity of a contact by scanning their personal QR code
• anonymous instant messaging
• nobody can read or evaluate your data
• local files are stored encrypted on your mobile phone

The Threema application is constantly being improved.

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PERMISSIONS
Threema requires the following permissions while installing the application. These permissions are only used if the corresponding functionality is requested.

• Read your contacts / modify your contacts: used for address book synchronization. When the synchronization is turned off, your contact data is not read or modified.
• Receive text messages: used for automatically linking your Threema ID to a mobile phone number. This permission is used only during the initial verification process.
• Precise location (GPS and network based): used for "send location" feature.
• Add or remove accounts, find accounts, create accounts: required for contact synchronization and integration in Android's account management.
• Modify or delete the contents of your USB storage: required for storing media files (images, videos, audio).
• Read phone status and identity: pre-fills your phone number if linking is desired. Only used during initial setup.
• Threema's functionality can be futher extended by separately downloadable plugins which may require additional permissions (e.g. access to camera, microphone).

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WHY IS THREEMA A PAID APP
Threema only requires a one-time fee. There are NO recurring charges. The price covers operating expenses and further development of the Threema platform.

--
SUPPORT / CONTACT
For questions or problems please consult our FAQs: https://threema.ch/en/faq.html

--
Follow us on:
Twitter.com/ThreemaApp
Facebook.com/threemaapp

Recent changes:
- Media gallery for a quick overview of all pictures and videos in a chat
- Directly call contacts from a chat
- Display group memberships of each contact
- Action URLs to add contacts or compose messages by simple web links
- Add shortcuts to your launcher for quick access to a chat
- Various improvements and fixes
- Support for French, Italian, Spanish and Brazilian Portuguese
Add to list
$2.26
89
4.5
User ratings
29403
Installs
1,000,000+
Concerns
4
File size
14046 kb
Screenshots
Screenshot of Threema Screenshot of Threema Screenshot of Threema Screenshot of Threema Screenshot of Threema Screenshot of Threema Screenshot of Threema Screenshot of Threema Screenshot of Threema

About Threema
Threema is a mobile messaging app that puts security and privacy first. With true end-to-end encryption, you can rest assured that only you and the intended recipient can read your messages. You can use Threema completely anonymously, without giving away personal information such as phone numbers or email addresses. Your messages will be deleted from our servers immediately after being delivered. Therefore, you're perfectly protected against data abuse.

--
SECURE END-TO-END ENCRYPTION
Compared to other popular messaging apps (including those claiming to use encryption), even we as the server operator have absolutely no way to read your messages.

--
HIGH LEVEL OF DATA PROTECTION
Threema takes data privacy very seriously. We strive to store only the absolutely necessary information for the shortest possible time. We guarantee that we do not collect, evaluate or sell customer data. That is our promise.

--
STANDARD FEATURES
Threema is not only secure but also very user friendly and covers the basic features of a mobile messenger.

• write text messages
• send videos and pictures
• share locations
• send voice messages
• create group chats and add new members
• synchronize your contacts (optional)

--
SPECIAL FEATURES
Threema differs from other mobile messenger by some special features.

• all text and voice messages as well as pictures, videos, and GPS locations are asymmetrically end-to-end encrypted
• even group chats are end-to-end encrypted
• verify the identity of a contact by scanning their personal QR code
• anonymous instant messaging
• nobody can read or evaluate your data
• local files are stored encrypted on your mobile phone

The Threema application is constantly being improved.

--
PERMISSIONS
Threema requires the following permissions while installing the application. These permissions are only used if the corresponding functionality is requested.

• Read your contacts / modify your contacts: used for address book synchronization. When the synchronization is turned off, your contact data is not read or modified.
• Receive text messages: used for automatically linking your Threema ID to a mobile phone number. This permission is used only during the initial verification process.
• Precise location (GPS and network based): used for "send location" feature.
• Add or remove accounts, find accounts, create accounts: required for contact synchronization and integration in Android's account management.
• Modify or delete the contents of your USB storage: required for storing media files (images, videos, audio).
• Read phone status and identity: pre-fills your phone number if linking is desired. Only used during initial setup.
• Threema's functionality can be futher extended by separately downloadable plugins which may require additional permissions (e.g. access to camera, microphone).

--
WHY IS THREEMA A PAID APP
Threema only requires a one-time fee. There are NO recurring charges. The price covers operating expenses and further development of the Threema platform.

--
SUPPORT / CONTACT
For questions or problems please consult our FAQs: https://threema.ch/en/faq.html

--
Follow us on:
Twitter.com/ThreemaApp
Facebook.com/threemaapp

Recent changes:
- Media gallery for a quick overview of all pictures and videos in a chat
- Directly call contacts from a chat
- Display group memberships of each contact
- Action URLs to add contacts or compose messages by simple web links
- Add shortcuts to your launcher for quick access to a chat
- Various improvements and fixes
- Support for French, Italian, Spanish and Brazilian Portuguese

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User reviews of Threema
I love this app as it seems to be one of the few out there doing encryption correctly. The usability is simple and clean.
Nov 5, 2013
No 2SD so 10+ MB constantly internal, slow, buggy and expensive. cannot recommend.
Sep 20, 2013
Android Market Comments
A Google User
Wednesday 2:47 PM
Works well but gui needs improved. The app works very well I'm very happy with it just needs some UI work. Update after update makes it better and better BUT not the UI. it still sucks. Come on Dev hire a designer. Five stars when you do.
A Google User
Tuesday 6:00 PM
Secure messaging for people who care about security Secure replacement for messaging apps like WhatsApp supporting encryption and a mutual trust mechanism. I do not miss any features that I was used to from other messaging apps and I really like the simple intuitive app handling. Nice one!
A Google User
Tuesday 9:08 AM
Needs desktop version I love threema and use it daily but the lack of a desktop client really limits it. Would be a five if there was.
A Google User
Monday 3:31 PM
Hate it Abusive permissions. Also no support e-mail address below, unintuitive, and can't recover from backups with a QR code because the Next button is always disabled regardless of the entered password.
A Google User
Monday 1:25 PM
Excellent for private messaging