Hi everyone,
is there any native app for use with Threema? I think it could be nice to have one - SFOS is targetting on privacy and security and Threema would be just perfect for it. Isn´t Jolla thinking about “becoming friends” with Threema and making native app? 
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Note that Threema is not really Open Source Software: While some client code has been published, the development process is not open, no one can build a working client except for Threema, plus the server is proprietary, there is no federation etc.
Thus IMO Threema is not really “targetting privacy and security” (at least not in a transparent way), even though they say so.
And “becoming friends with Threema" means paying them money. With a sufficient amount of that one may convince them to create a native Threema app.
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@malakay1989 This guy once made Threema working on SFOS, but i don’t know why he gave up the idea, maybe because of legal reasons. Now that Threema said they go Opensource, maybe you can take up his work and bring a working app to SFOS
i have no ability to make apps 
maybe someone could adopt it
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There has been work done for native Threema client by @CitymanDev. Unfortunately it is unlikely that he/she will finish it. Still, CityMan is willing to hand over the work currently done for dev who would like to finish the work. So call out to any sfos dev who could and would like to bring long waited Threema client to sfos ecosystem! 
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If someone is interested, the project is cool and has been funny, I will not continue the development but is always nice to have a native client, notifications working also.
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Native client is always much nicer! Just so much more pleasant to use and brings special kind of joy when you can drop one more android client
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A native Threema client would be amazing! I’ve contacted them every now and then about porting their client to Sailfish but no success yet 
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Olf
Threema created Threema Libre, open source, available with FDroid. You can pay for it once at Threema, no need to pay with Google Play or Apple.
There is Threema desktop , works with linux too. Chatting with Threema Libre works fine on a 10 III with Sailfish, but video calling does not work. Therefore I carry a second device, a Volla phone especially for Threema. I wish Jolla can fix access to camera so I don’t have to use two devices.
Threema is one of the most privacy safe chat services. Much better than Whatsapp (Whisperfish) and Signal.
Malakay 1989
Thank you for posting!
I prefer paying for such a service, because it’s worth it. Threema gives me the opportunity to video call with my family abroad. They all paid for it.
I also pay for my decent mail services.
Servers and maintenance deserve a fair price.
Whisperfish is free, but based on a spying app.
Huh? Please elaborate.
i don’t know how you got things messed up, but Whisperfish is signal client, not whatsapp. So currently probably most popular privacy friendly native chat.
There is also native Threema app already, which works for chats but someone would need to finish it.
Have you shared the code somewhere?
You are right, Whisperfish is a client app of Signal and that’st not part of the spying industry. Meta products are. I was wrong.
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At least they are saying that. But can I be sure?