Signal is a secure and private messaging app known for its end-to-end encryption and focus on user privacy.
Best imo Alternatives ranked by AI · updated Aug 2026
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imo is a consumer messaging app for text chat, voice calls, and video calls over mobile and desktop devices. It is aimed at users seeking a lightweight alternative for international communication and group calling.
Top 6 imo alternatives
Telegram is a cloud-based instant messaging app with a focus on speed and security.
WhatsApp is a popular messaging app that allows users to send text messages, make voice and video calls, share media, and more.
Viber is a free messaging and calling app that allows users to connect with friends and family worldwide.
Free with in-app purchases
Google Meet is a video-communication service developed by Google. It allows users to host video meetings with up to 250 participants.
Free for personal use and included in G Suite plans
BOTIM is a messaging and internet-calling service for users who need text chat, voice calls, and video calls across mobile devices. It...
Pros
- Supports messaging, voice calls, and video calls in one mobile app
- Useful in regions where some competing calling services are restricted
- Offers group chats and group video calling
Cons
- Availability and calling access can depend on local telecom rules or subscriptions
- Smaller global user base than WhatsApp or Telegram
- Privacy controls are less prominent than Signal's
Free; paid plans vary by country and operator
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