iOS does a great job by encrypting your text messages. But that won’t prevent anyone from Apple HQ to view your messages. Further, a court order could force Apple to turn over your messages. If you want wholesome security from the risk of eavesdropping, you might need something like Threema for iPhone. This messaging application combines better encryption, multiple levels of verification and above all, absolute ease of use. You can get Threema app for $1.99 from iTunes App Store.
Threema app for iPhone 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. The best part is that you can use Threema without giving away your personal information. Technically, Threema for iPhone provides end-to-end security. The messages you send are encrypted before they leave your iPhone. The server is situated in Switzerland (not US) so that you don’t have to fear any NSA snooping either. Further, the messaging server does not have the decryption key meaning only your intended recipient can view the text message. Once you download Threema, you’ll be taken through a simple set up process. You’re required to move your finger around a small box to generate your key pairs. As soon as the key pairs are generated, you’ll be issued a Threema Public ID. You can let Threema sync your contacts to find out who else might be using the app.
Another thing we liked about Threema for iPhone is the one, two or three dot system to show you how ‘verified’ is the other person. One dot means you’d just received a message from them. Two dots means their identity matches with the contact details you have in your phone. Three dots indicate someone whom you’d met in person. When you meet, you can scan or snap a photo of a QR code on the other person’s iPhone. The other person also does the same. Now you can assure yourself of the sender’s identity when you receive a message from the other person who’s QR Code you’d scanned. Other features include passcode lock, and an erase option to delete all details from your phone after ten failed passcode attempts.
Once you manage to get your head around the working of Threema app, it is just easy to use the app. The UI is clean and easy to use, and the text messages are pretty well secured from snooping. One small issue is that you got to re-verify your contacts if you upgrade your iPhone. Check it out if you’re in the lookout for a totally secure messaging app to replace your Whatsapp messenger.