Threema
How does Threema's anonymous ID system work instead of using a phone number?
Threema assigns you a random ID when you sign up, so you don't need to share your phone number. You can share this ID with friends to connect, or they can scan your QR code to verify your identity. This keeps your number private and reduces spam.
Can I use Face ID or biometric lock to secure the Threema app?
Yes, Threema supports Face ID and other biometric locks to prevent others from accessing your messages. You can enable this in the app's settings, and it's especially handy when handing your phone to someone else.
Why am I not receiving notifications for new Threema messages until I open the app?
This is a known issue where notifications can be delayed or missing on some devices. To fix it, check your phone's battery optimization settings and ensure Threema is allowed to run in the background. Also, verify that in-app notification settings are enabled.
How do I restore my Threema chat history when switching to a new phone?
Threema requires you to set up a backup password in the app's settings before creating a backup. On your new phone, install Threema, select 'Restore backup,' and enter that password. If you forget the password, the backup cannot be recovered, so keep it safe.
How does Threema compare to WhatsApp in terms of privacy and cost?
Threema is a paid app that offers end-to-end encryption and complete anonymity without needing your phone number, while WhatsApp is free but requires your number and shares metadata with Meta. Threema's paid model ensures no ads or data collection, but its smaller user base means you may need to convince friends to switch.
