DOWNLOAD  $2.99


    Threema's review

    Published: 2014-08-05, by .

    A safe messaging application especially created to solve privacy concerns

    • Works well
    • Clean design
    • Ease of use
    • Some competitors out there

    "Private Communications"

    Threema is a messaging application which focuses on privacy, making sure only the right people reads your messages.

    Firstly, you will be given a Threema ID which is randomly generated. You will find other users by scanning their codes, synchronizing your contacts or simply by entering their ID.

    After that, you will need to confirm your mobile number and start chatting, knowing that your messages will be automatically deleted after being delivered.

    THREEMA GMBH is the developer of Threema, a well-designed application for those professional users and techies who're really concern about privacy matters.

    Tags: threema , threema app setup , threema mobile communications , threema 日本語 , threema 1.21 , threema open source

    Ana Appszoom logo

    by Ana , Appszoom

    Aug 05, 2014


    Threema is the world’s favorite secure messenger and keeps your data out of the hands of hackers, corporations and governments. Threema can be used completely anonymously, allows to make end-to-end encrypted voice calls, and offers every feature one would expect from a state-of-the-art instant messenger. With Threema Web, you can also use Threema from your Desktop.

    Threema is designed to generate as little data on servers as possible – this is a core part of our concept. Group memberships and contact lists are managed on your device only, and never stored on our servers. Messages are immediately deleted after they have been delivered. Local files are stored encrypted on your mobile phone or tablet. All this effectively prevents the collection and misuse of your personal information, including meta data.

    Threema end-to-end encrypts all your communication, including messages, voice calls, group chats, files and even status messages. Only the intended recipient, and nobody else, can read your messages. Threema uses the trusted open source NaCl cryptography library for encryption. The encryption keys are generated and safely stored on user’s’ devices to prevent backdoor access or copies.

    Threema is not only an encrypted and private messenger but also versatile and feature-rich.

    • write text and send voice messages
    • make voice calls
    • share videos, pictures and locations
    • send any type of file (pdf, animated gif, mp3, doc, zip, etc.)
    • use Threema Web to chat from your Desktop
    • create groups
    • conduct polls with the unique poll feature
    • choose between a dark and a light theme
    • quickly and silently reply with the unique agree/disagree feature
    • verify the identity of a contact by scanning their personal QR code
    • use Threema as anonymous instant messaging tool
    • synchronize your contacts (optional)

    Each Threema user receives a random Threema ID for identification. A phone number or email address is not required to use Threema. This unique feature allows you to use Threema completely anonymously – no need to give up private information or to open an account.

    We let users confirm trusted contacts with a QR code or a key fingerprint to prevent man in the middle attacks.

    We are a 100% independent and self-financed company in the heart of Switzerland with its own servers and in-house software development. Switzerland is a country with some of the most user friendly privacy laws in the world.

    Threema is a private messenger, but it still requires the following permissions (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.
    • Microphone: required for Threema calls and voice messages
    • 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 reading and storing media files (images, videos, documents).
    • Make and manage phone calls: required to reject incoming phone calls while a Threema call is ongoing

    For questions or problems please consult our FAQs:

    Explore more

    Users review

    from 48.113 reviews



    Users comments for Threema

    Van de Lahr

    by Van de Lahr

    Dec 07, 2017  |  "Poor"

    Unfortunately I never had push messages. I miss also all the nice features that WhatsApp has like status, profile picture, etc. The world is to colourful to use threema. But the worst thing is, and that's why I uninstalled it, that nobody is using it except some paranoid nerds. The train has left when Facebook bought WhatsApp and they didn't make threema free of charge.

    Christos Konstantinou

    by Christos Konstantinou

    Dec 05, 2017  |  "OK"

    You need to fix the bug that keeps threema calls from not hanging up. You try to call someone and it beeps but neither can answer and you need to restart the phone to get rid of it.

    Ken Hicg

    by Ken Hicg

    Nov 24, 2017  |  "Good"

    Would be great if I got reliable notifications but they are sporadic.


    by Rogracia

    Nov 18, 2017  |  "Awesome"

    Finally a messaging system where I don't have to trust a US company with my encrypted communication.

    Damian Kelesky

    by Damian Kelesky

    Nov 15, 2017  |  "Great"

    Great app with good, reliable functionality and noticeable respect for its users' privacy. Its price, however, despite fairly low, keeps quite many people from using it. It's also quite difficult to keep one's ID when changing devices.

    Hari Parthasarathy

    by Hari Parthasarathy

    Nov 12, 2017  |  "Awesome"

    Best app