Threema vs Riot.im : Which is Better?

Threema

Threema is an encrypted instant messaging application for iOS, Android and Windows Phone. Developed by Threema GmbH

License: Commercial

Apps available for Android iPhone Android Tablet Windows Phone iPad

Riot allows teams to communicate across a wide range of collaboration apps.

License: Open Source

Apps available for Online Android iPhone iPad Self-Hosted

Feature	Threema	Riot.im
Encrypted chat
Encrypted email
Chat
Confirm messages
Sync Contacts
Encrypted Email
Encrypted backups
Encrypted calls
End-to-End Encryption
Group chat
Integrated App lock
Integrated File Sharing
Multiple languages
Picture sharing
Polling
Privacy focused
Secure Chat
Security focused
Social network
Stickers
Chat Bot
Lightweight
Cloud sync
Privacy-friendly
Group collaboration
Multi Channel
Team Collaboration
Decentralized
Security & Privacy
Peer-To-Peer
Custom Backgrounds
Forums
Video calling
Threaded Conversations
Chat organizer
Bluetooth Support
Decentralisation
Non-cloud solution
Built-in File transfer
GitHub integration
Slack integration
Voice Call
Active Directory integration
Add-ons
Clean design
Community based
Custom widgets
Direct Messaging
DRM Free
Federated
Federation
LDAP support
Live Chat
MarkDown support
Matrix.org protocol
Message redaction
Mobile friendly
Moderation tools
Per-room avatars
Read receipts
Real time collaboration
File Sending
Server Moderation
Server side history
Text chat
Typing notifications
User Management
User mentions
Video/Audio Calling
Video chat
Video Conferencing
Voice chat
Web-Based
Web Integaration
Ad-free
Share your screen
Support for Multiple protocols
Extensible by Plugins/Extensions
Gmail integration