When comparing Kik vs Threema, the Slant community recommends Threema for most people. In the question“What are the best messaging apps for iOS?” Threema is ranked 11th while Kik is ranked 18th. The most important reason people chose Threema is:
Registration is handled by random generated IDs. No phone number needed.
Specs
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Pros
Pro Alexis Sandy
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Pro Push is quick
Push notifications are extremely quick.
Pro Cross-platform
Support for iOS, Android, and Blackberry.
Pro Built-in browser
Kik is the first messenger with a built-in browser.
Pro Easy to use interface
Pro Registration without phone number
Registration is handled by random generated IDs. No phone number needed.
Pro Encrypted communication
Provides complete end-to-end encryption.
Pro Company behind Threema is based in Switzerland
Pro Servers in Switzerland
Privacy laws protect the data Threema has.
Pro Supports encrypted group chats
Pro Provides a web client
You can control and message with friends via Threema Web, the official web client for Threema.
Pro Ability to send pics and videos
Threema supports sending media messages such as video, pics and even voice messages.
Pro Group chat polls
Pro Allows verification of contacts identity via QR Code
Cons
Con Not for young people
Kik has a lot of sexual predators and can be dangerous for kids.
Con Not free
Unlike many other options Threema is not free as it costs $1.99 for the app.
Con Single device only
You cannot use multiple devices to send messages. However, it does have message mirroring on a web client.
Con No cloud sync
E2E encryption means no cloud syncing of messages.