Threema. The Secure Messenger

Threema. The Secure Messenger

263 Ratings
$ 3.99

Threema. The Secure Messenger App

Threema is the world’s best-selling secure messenger and keeps your data out of the hands of hackers, corporations, and governments. The service can be used completely anonymously. Threema is open source, allows to make end-to-end encrypted voice and video 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 from the ground up to generate as little data on servers as possible. 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 metadata. Threema is fully compliant with the European privacy legislation (GDPR). HIGHEST ENCRYPTION STRENGTH Threema encrypts ALL your communications END-TO-END including messages, voice and video calls, group chats, media files and even status messages. You can rest assured that only the intended recipient can read your chats, and nobody else – not even us. Threema uses the trusted open source NaCl cryptography library for encryption. The encryption keys are generated and safely stored on users’ 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 and video calls (requires iPhone 5s / iOS 10 or above) • 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 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) SERVERS IN SWITZERLAND All our servers are located in Switzerland, and we develop our software in-house. 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. OPEN SOURCE AND AUDITS The source code of the Threema app is open for everyone to review. On top of that, renowned experts are regularly commissioned to conduct systematic security audits of Threema’s code. NO ADS, NO TRACKERS Threema is not financed by advertising and does not collect user data. SUPPORT / CONTACT For questions or problems please consult our FAQs:

Threema. The Secure Messenger app screenshots

Threema. The Secure Messenger app reviews

  • App keeps getting better 5/5

    By Welovecorgies
    The last few updates have made it even better. Please add stickers though. It’s the only feature I and my family still want from WhatsApp. Thank you
  • Needs Work 2/5

    By jlhrcp
    Great idea, poor execution
  • Please fix the issues with Pinyin IME 4/5

    By krseventeen
    It’s definitely one of the best secure messenger apps out there, ticking almost all the boxes. However, there is a usability show-stopper issue for Chinese-speaking users who use Pinyin input method. I’ve opened a support ticket (#893858), but apparently this won’t be resolved anytime soon. We might be a tiny user base, but PLEASE.
  • Solid and safe, bud so buggy and subpar interface 3/5

    By thebean15244
    This app overall isn’t terrible, but it is so buggy whenever I’m messaging anyone. Also the interface is weird and not placed weird. For example I’m constantly hitting the record button on keyboard while typing, but I have small fingers and it doesn’t happen texting on any other app or messaging. Anyway, it’s secure and it does what it has to do, that’s the only reason I’m not upset I spent money on this app.
  • It's questionable 2/5

    By 1aq2sw
    The disadvantages are: 1 nominally to protect privacy, but the APP must verify the real Apple ID to use, which objectively provides the possibility of stealing the user's real identity. 2 lack of message timing auto-destruction.
  • down for the whole day 1/5

    By 129 error
    been using this app almost 6 months now. A good and bad experience. Threema is down today can’t make a call the whole day or accepting calls either. I needed to make calls every hour to out of country relying this app and totally useless.? hope they fix it now
  • Great app, but some slight issues. 4/5

    By LinuxFied
    Is it normal on iOS when recording a voice message, for voiceover iOS is built-in screen reader, to switch to the earpiece? I ask, because it makes it almost impossible to here, and determine where they stop/send button is, also the problem there, if you put the phone too close to your ear, the screenshots off. I'm running iOS 15.0.1.
  • Customize icon 4/5

    By icon display
    Can you please give us the option to change the apps icon?
  • Great app but it needs improvements. 4/5

    By KlevisX28
    I love the app and the idea of the ID and no contact & email sync but it needs a few features. 1. Expiring photo option (view once or forever). 2. Messages time duration (1hr, 1 day, 1 week etc). Other than those, it’s all good.
  • Now has private investors. Can be compromised. 3/5

    By Charlie Full
    It's getting worse at sending messages in a timely manner. I hate WhatsApp, and I mean hate it. But it works consistently. NEVER an issue with WhatsApp. Threema, every freaking day. I'm starting to take it personally. We pay for this, and it holds up my messages, delivers them out of sequence or doesn't deliver them at all.
  • Freezes 1/5

    By kimbelizgrah
    Whenever a call is initiated, the entire iPad freezes
  • Great app, currently is slow 2/5

    By Felden
    The app lags for 3-7 seconds whenever I click any media. I will update to 5 stars when this is fixed.
  • Perfect but… 5/5

    By wolfRaidz
    You should add “Delete For Everyone” feature, or make timing feature at leas.
  • Super! 5/5

    By Gsshen315
    Very good so far!
  • Not up to WhatsApp standards yet 3/5

    By Couch psych
    This app needs a few modifications to be up to its competitors’ standards- especially on iPhones. Update: thanks for responding! A few ideas: - add a check mark once an audio message has been played - allow iPhone users to type messages within the app while listening to a received audio message (right now the pop out audio message window is preventing that). - add the pause button that android users have when recording audios (I don’t believe iPhones users have it, but if they do, make it more obvious?) - prevent audio from going quiet when something is saved over the phone. - when an audio message has not been fully played, it would be great if we could start listening where we left off (right now when the pop out window is closed we have to restart audio messages from the beginning).
  • Great app. Fundamentally secure. 5/5

    By Tim Cook is J3sus
    I like threema because it is fundamentally secure and the model makes sense to me. I'm hoping for more features like being able to react with emojis instead of "agree/disagree". But other than that it's great
  • way bettet then zoom 😆🇺🇸🇺🇸🇺🇸 4/5

    By 2379!
    you should incorporate AI generated qr codes to every call and message for full anonimity👌✌️ i would pay 5 to 10 dollars if that was incorporated you could dominate britan,germany and china. maybe AI random generated IP address as well?
  • Love the anonymity and security 5/5

    By dubbsT123
    Doesn’t require number ✅ Doesn’t require email ✅ Most secure chat service ✅ Fully encrypted end to end ✅ Opensource code ❤️ Encrypted video and voice chat 🥰
  • Not impressed 2/5

    By Keahilanikupono
    While threema works overall, I’m less than impressed with the audio overrides and the disconnects. If I’m on a call and play a video, the call will completely disconnect. If I’m playing music and merely open the app, it will kill my audio for about 5 seconds, and then artificially lower the volume. Drives me bonkers. I’m constantly having to go into my settings and revoke (or grant) permission to the microphone depending on what-else I’m doing. Very annoying and detracts from the usefulness of the app itself. I’ve contacted support and the only thing they could tell me was to upgrade to the newest version of it. I’m already running the newest version. It’s the only message app that has been incapable of handling audio in a competent way. Very disappointing to say the least.
  • Love Threema but, 5/5

    By OmarBayaty
    I’m giving Threema 5 STARS after it becomes open source but, what’s the point of all these features that added recently and Threema still blocked in many countries, what’s the point if I can’t call, text or send photos to anyone in my list. they can’t use Threema without a VPN 90% of my friends switched to another IM app because it’s available in their country’s that’s why Threema is not popular so until you find a way to use it without a VPN then we can enjoy all features otherwise it’s useless.
  • You really need to add sync between devices 3/5

    By Waswhatwer
    This is almost a deal breaker, and certainly keeps from being able to use it for anything but messages that need to be secure. It’s one thing to deal with it for just your account, but when you tell that to other contacts and family it becomes impossible as most people just expect sync no a day's on iOS.
  • The best private messaging app 5/5

    By Christian-stone
    None of the others can compare with Threema’s design and security.
  • Excellent call quality and stability. Highly recommended!!! 5/5

    By DeeJaySas
    We are calling half away around the world with very limited internet connection speeds, I mean very limited. We are amazed each time how clear and immediate the conversation can be. The stability is outstanding as well, calls are only dropped if I accidentally touch the wrong button!
  • Original sound 5/5

    By magonza68
    I love Threema. High security messanger app. And Threema sound is very original!
  • Threema can’t find my backup 1/5

    By jhwd
    I upgraded my phone and was unable to restore my credentials, even though I had them backed up to the Threema Server some time ago. I even carefully had store my backup password. I lost all the documents that my family had sent me and all their communications - very upset and deleted the app forever.
  • Cant type IDs that arent exactly 8 chars 4/5

    By azpilot
    I dont know when this happened but My friend cannot send to my ID Because my ID is not exactly 8 Chars. It seems it cannot be more or less than 8 chars which were valid at some point earlier in the software history. EDIT This works correctly after investigating it further they were using the nickname and not the threema id under my profile
  • Add agree/disagree functionality to group chats. 4/5

    By ragada
    I love the update 8/17/2020. I like the new thumbs up and thumbs down feature but would love it if they were able to overlap if multiple people posted agree on group chats. If you agree or disagree on your own statements that would be huge as you can’t currently.
  • Needs delete for everyone option & viewed option for received messages 4/5

    By Jale71
    I like Threema but was horrified to discover that one cannot delete messages for everyone. I did not realize that all messages would remain on the receiver’s phone. I get confused on Threema when I have listened to an audio message because there is no indication that I have already listened to it. A check or something would be nice. If there are many audio messages and one gets interrupted, then it is unclear where to start relistening again. I do not like the red while recording messages, it is very distracting to the eye. I would prefer a milder color. I also like that in WhatsApp I can type a reply in the reply box while listening to a message but that does not work in Threema. Otherwise, I like the clean design of Threema and the privacy.
  • Needs option for disappearing messages 4/5

    By sarahjaneconner7
    Nearly perfect, but I hope they can include an option for disappearing messages in the near future, like signal does.
  • Password 1/5

    By SplendidEvie
    Can’t get past password stage. Won’t accept any combinations. Please help.
  • Good but no “edit message” function 3/5

    By satchnut
    This could be the perfect secure messaging app if it were “fat-fingered perfectionist”-proof :D, as having to copy, delete, paste, edit, then resend just to “edit” a single sent message is so much hassle compared to just hitting an edit-button. For now I and my similarly fat-fingered perfectionist friends will be begrudgingly sticking with the less secure alternatives for now. If this is ever implemented, I will start recommending Threema, as otherwise the UX feels solid, better than Wire’s and even Signal’s. By the way, if the concern is with potentially allowing people to edit maliciously, maybe a mutual-consent-based “Allow editing of sent messages in chats” switch is an appropriate solution. Or perhaps just an “Edit history” list.
  • Android Version is Better 2/5

    By Lawl3rZ
    Boggles my mind that the Android version is more fully featured than the iOS version. Simply unacceptable. Also, iOS users shouldn’t be forced to use Safari when they want to use Threema Web. Not all of us also own a Mac.
  • Last update 4/5

    By Ma}{RaJa
    This update made the app not opening unless disabled face detection
  • Good, but needs work. 3/5

    By Minecraft_lover88
    This is a solid, secure messaging app and I enjoy using it. Though, there are a few features I feel need to be seriously reconsidered, or perhaps even removed. 1. The ability to export an entire conversation Into a zip file without the secondary users consent 2. The inability to block users Other than that, this is a pretty solid app. In the future however, I would also recommend adding group administration options.
  • Bad update 1/5

    For me this app has been 5 stars but the latest app has unresponsive UI. The app crashes and hangs which it never did before.
  • Good app 5/5

    By Kueyke
    Good app
  • Get this app now 5/5

    By Zombie slayers
    I’ve been using Threema for years It is by far the most safe and secure messaging app out there Once you pay for the original app, there are never any additional charges for any messages, pictures, videos, or texts sent... ever!! I used to pay a lot of money to send even just one text message to family members in Europe. Not anymore.. I hear this app is very popular in Europe, but somehow I don’t think it will ever catch on in the United States. But if you do purchase it, it is definitely worth it. You will need to tell your friends and your family members about the app because they need to have the app as well in order to communicate with you. Once anyone else has this app it’s the only way I communicate with them. They begin to use it too and it becomes your normal way of sending messages back and forth. Almost all of my text messages to people I know, go through Threema. Get this app and spread the word. Remember freedom means “No Big Brother!”
  • The Best Secure Messenger! 5/5

    By HiFi Rocker
    Threema offers the best security of any encrypted messaging app available! Not only is it based in the pro-privacy country of Switzerland, but it has also been comprehensively audited by a reputable Swiss security firm and found to have no vulnerabilities. The other great thing that makes it unique is that only you have access to your private key and you can exchange public keys directly with friends and family, which proves the identity of your contacts. This robust authentication protects your communications to a greater degree than similar apps. For more confirmation, check out past Security Now podcasts for why Threema is the best and most secure messenger you can use. If you are looking for a messaging app that gets security right, look no further than Threema.
  • Awesome (!) App, just the last update... 4/5

    By callidryas
    Love the app, but ever since the last update to iOS13 it’s not possible anymore to see the text you add to a picture before sending it to THREEMA.
  • Well executed but missing some features 4/5

    By Jay Van Quick
    On the security side the application is very well executed. On the messaging side there are a few features that would be desirable to have; The ability to quote a picture. Read receipts on messages in group chats (who in the group has seen your message).
  • Alright app 3/5

    By gggiles
    Cool interface, and solid security protection from remote devices accessing information. I would recommend that they create a burn on read feature similar to wickr that deletes messages as they are read. Good protection unless someone has access to your physical device.
  • Since the last update it hangs up often 1/5

    By Climax510
    App is also freezing since last update. Why do y’all keep screwing with it. Please add full Apple Watch support. This freezing is really messing with my system btw
  • Thank you Threema - you saved Slovakia 5/5

    By Budfit007
    Your app revelaed the biggest political scandal in the Slovak Republic history. All you need is to break inside (it took police some months to do it - you might work on more secure standards) of one of the biggest influential oligarchs who used it for long time. Now all Slovakia could read the messages and reveal the biggest political and economical thefts made by politicians, oligarchs, mobs. So big thank you for liberating our country. (all in the news last two weeks)
  • Bien seguro 5/5

    By munix
    Lo que me encanta de esta app es su seguridad y privacidad. Mejor que WhatsApp, Telegram, incluso mas seguro que Signal.
  • Best app there is 5/5

    By Travel Pat
    Don’t have to use a phone number to setup an account. That’s so massively important. They actually charge for the app which is a major positive if you care about what their motivations should be. Privacy first and then they basically try to copy WhatsApp on features. Always a little behind on the feature list but you’re choosing privacy over minor functionality bonuses. My favorite app and I couldn’t support this company or their vision more.
  • Awesome messenger 5/5

    By aslanabdurahmanov
    Couple of touches are missing, such as video call support and if developer can enable sent message edit function for short period of time i.e you can edit your sent message within first 20 seconds, then would be awesome. Another thing, instead of tap and select, slide right/left would be much easier.
  • Best app in the entire App Store 5/5

    By PurpleMesa
    No need to give your phone number out to anyone. THREEMA gives you an ID which you use instead of your phone number. No other secure messaging application allows you to protect your phone number in this way. Also, because you pay for THREEMA you know exactly why they’re doing what they’re doing. For money from you. You’re paying and this your data isn’t the price. I’ve been with THREEMA since the start and their developers come with constant improvements and updates. I love this app because it means freedom.
  • Great at security, mostly great at the rest 4/5

    By Kokubu
    This looks like a messaging app written by people who take security seriously. Well done. I’m only taking off one star because the onboarding process was a mess. At one point, you’re asked to enter a password, and again to verify it. That’s all fine, but the password fields are so far down the page that the on-screen keyboard completely covers the second one — and the page doesn’t allow scrolling vertically! Eventually I discovered a workaround (tap Passwords, then Cancel, then tap the second password field, then blindly type your password on the keyboard that appears). But this is really something that should have been caught in testing. This makes it impossible (AFAICT) to paste a password from the clipboard, which discourages the use of strong passwords from a password manager. And that’s not good for security. Aside from that one major inconvenience, though, this looks like a great app.
  • New logo 4/5

    By EPlurnteaser
    Only thing I’d change is the icon. If your using this app and don’t want people to realize it’s a messaging app it’s kind of hard. The picture logo is literally a message bubble with a lock in it, which is pretty suspicious. Other than that I think it’s great.