When comparing Threema vs Handcent Next SMS, the Slant community recommends Threema for most people. In the question“What are the best messaging apps for Android?” Threema is ranked 6th while Handcent Next SMS is ranked 36th. 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 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
Pro Can split a group text
Splitting a group text is a great option, so that follow-up can be personal and not everyone sees every response.
Pro Missed notification reminders
Pro Can text from a PC, Mac or tablet
Texting from another device allows one to not pick up one's phone every minute.
Pro Customizable appearance
Cons
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.
Con Name is confusing
In your app drawer you'll see "Next SMS" but in Google Play "Handcent" is the first word of the app. That might confuse some people.
Con Texting from a PC, Mac or tablet requires extra work
