Threema

Threema$2.99

Rated 4.49/5 (49,024) —  Free Android application by Threema GmbH

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About Threema

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.

PRIVACY AND ANONYMITY
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.

HIGHEST ENCRYPTION STRENGTH
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.

COMPREHENSIVE FEATURES
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)

FULL ANONYMITY
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.

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

INDEPENDENT COMPANY
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.

PERMISSIONS
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

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

How to Download / Install

Download and install Threema version Varies with device on your Android device!
Downloaded 1,000,000+ times, content rating: Everyone
Android package: ch.threema.app, download Threema.apk

All Application Badges

Good rating
Paid
app
Bug
buster
For everyone
Android app

App History & Updates

What's Changed
Workaround for CyanogenMod/LineageOS bug
Emoji picker performance improvements
Version update Threema was updated to version 2.94
Price update  Price changed from $2.49 to $2.99.
Price update  Price changed from $0.99 to $2.49.
Version update Threema was updated to version 2.61

What are users saying about Threema

G70%
by G####:

Nice Interface, secure messaging and a good feature set makes this a app a good choice, but two things are somewhat annoying which brought me to switch to signal. 1. Poor web interface: lots of connection interruptions and constant battery draining 2. Sometimes I miss out on notifications because the app icon just disappears from my status menu after I unlocked my screen. This is somehow not constant as for e.g. with WhatsApp or Signal.

X70%
by X####:

As a visually impaired user of this app, using Voice Assistant on a Galaxy s eight, I'd like to make a suggestion. Would it be possible for the answer/decline options for voice calls to be buttons instead of having to swipe up and down? This action isn't accessible using Voice Assistant.

N70%
by N####:

For all of you who care about privacy. This is the best messenger. You don't need to register with your phone number. End-to-End encryption is enabled by default, so even the guys at Threema have no access to your messages on their servers. I always hated WhatsApp for its lack of security and privacy. Hope to convince some of my friends to switch to Threema soon. Well done guys!

N70%
by N####:

It has improved a lot, although you still don't see new messages immediately without opening the app. It has recently tuned their set of emojis but unfortunately removed my all-time favourite with the new set. I wonder why, because there's plenty of space to add more. Probably a sad UX decision..

F70%
by F####:

Like it very much. Just one issue: seems to have a glitch when holding phone to the ear with active proximity sensor—voice messages are played over speaker, not earpiece. Annoying and potentially painful.

N70%
by N####:

It's very nice that Threema generates an ID that can be used without linking your phone number. So it works perfectly fine on my tablet:-) it now also supports encrypted phone calls; nice job!!

N70%
by N####:

Threema is under control of Russian Government.....???? I just came to know that threema is going to provide access of meta data of all communications to Russian Govt... If it is true then it's threat to our privacy..... And also today since last 6 hours threema app and website is not working??

N70%
by N####:

The last update prior to this one erased my entire install, and said "welcome to threema" so I hope this one brings it back, if not will probably quit using

N70%
by N####:

Threema kann so ziemlich alles, was ich möchte und brauche, und das gute Gefühl der Sicherheit ist sowieso unbezahlbar. Ich höre so oft, Threema sei teuer. Aber mal ehrlich, wie oft kauft man sich Müll für 3 Euro?! Ne Cola am Samstag abend ist teurer. Diese App ist jeden Cent wert, und ich würde sie immer wieder kaufen! Leider funktionieren meine Notification Badges seit dem letzten Update nicht mehr. Ich hoffe auf schnelle Abhilfe oder ein Lösungsangebot...?

N70%
by N####:

Finally a save, encrypted and good messenger! (Calls, Groups and better Emojis ;)) Invite all your freaking friends to it!

N70%
by N####:

I really enjoy using Threema as a secure alternative to other open and "curious" messengers. Update: Some of family switched to Threema and it is established as my primary messenger. Lovely!

F70%
by F####:

Great app. But what can make it better is : multiple accounts, multi devices (phone, tablet, desktop, just like Wire)

N70%
by N####:

would be the best secure chat app if threema add option to burn & auto delete messages within time limit..

N70%
by N####:

A quick menu when you touch the message like telegram will be awesome; edit and delete messages for everyone too.

I70%
by I####:

Exceptional quality of voice messages, ACTUAL privacy safety, no buggs, simple design, many possibilities for customization

R70%
by R####:

Just amazing. The new voice calls feature works really well and the audio quality is extremely clear! Fantastic job, and kudos to the team here!

P70%
by P####:

Would like to see the option for self destroying messages

X70%
by X####:

Doesn't any update or new feature in this messenger ?

L70%
by L####:

Video calling and better group membership management, then it's near perfect.

N70%
by N####:

Make it moveable to the SD card... takes way too much space on my phone. Apps belong on SD cards! ????

N70%
by N####:

Not getting the push notifications. Getting notifications only after open the application.

N70%
by N####:

Offers all functionality that WhatsApp and Co offer as well, just secure and without surveilence.

Z70%
by Z####:

Very good. Working out my own bugs. My doing not threema's.

N70%
by N####:

It works quite well. It doesn't require too many permissions.

N70%
by N####:

Easy to use and secure

S70%
by S####:

Really great! And really safe!

Z70%
by Z####:

Perfect and usefully

N70%
by N####:

Awsome!

N70%
by N####:

Excellent app

N70%
by N####:

Nice

N70%
by N####:

It is a great secure message app. Do you have plans to introduce a standard message feature (non-secure), for contacts who don't use Threema?

W70%
by W####:

Well made app with slick authentication feature. The only reason I don't use it's inability to del or even set an expiration on sent messages.

N70%
by N####:

I like this messenger. It uses state-of-the-art End-2-End encryption. The unique poll feature is also very nice. I am missing self destructing messages, however. It would help keeping history clean. Not all messages need or should be kept forever in a chat log. Anyway, Threema is a really great app! Thanks!

N70%
by N####:

Must have app!

N70%
by N####:

I really love this app. It works really well, offers a variety of features and, most importantly, privacy :)

N70%
by N####:

Need disappearing messages like signal has. You're looking at 2-500 contacts off the bat that will switch over from signal and all of our friends purchasing your app if so. Absolutely amazing app for anyone looking for secure messaging and the functionality is set up so nicely you've truly done a great job. We just need one more thing. Hopefully this catches the attention otherwise I'll ask everyone signing over to one star until it is noticed.

P70%
by P####:

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.

A70%
by A####:

Privacy first and that's dope. Needs a constant notification icon like BBM to prevent being killed by Android hence missing messages.

N70%
by N####:

In meinen Augen ist Threema der beste Messenger auf dem Markt. Da lohnt sich der kleine Obolus für die garantierte Sicherheit und die super Funktionen, die in einigen Punkten sogar besser als die von WhatsApp sind, auf jeden Fall. Bug: Bei Sprachanrufen zwischen einem iPhone SE und einem Huawei P10 kommt es zu Verbindungsabbrüchen und vor allem zu einer Verzerrung des Gesprächspartners. Bitte fixen.

T70%
by T####:

It's no ones business what I text other people about. I like this app because I can chat with family and friends and don't have to worry about what I say and it showing up on some feed about the crazy things people say, which they are only saying because they incorrectly assume texting is private. Well worth the money.


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Rating Distribution

RATING
4.55
49,024 users

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