This app offers secure communication with end-to-end encryption for calls, texts, and media sharing. It allows for group chats, conference calls, and live streaming with optional recording and self-destructing messages.
4.4(5 ratings)
Free
Best apps like Kosmos Hi Lo
10+ similar apps compared and reviewed
3.7 avg rating
10 free apps
Updated August 2026
Looking for something like Kosmos Hi Lo? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.
Top Alternatives to Kosmos Hi Lo
5.0(2 ratings)
Free
This app offers secure, end-to-end encrypted communication, including voice and video calls, group chats, and live streaming. It allows for confidential sharing of messages, photos, and location data with self-destructing options.
Crypty - Secure communications by CRYPTY SRL
Secure texting and callingWorth Considering
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3.0(2 ratings)
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This app offers secure messaging, voice calls, and file sharing with end-to-end encryption. It features timed message destruction, confidential live streaming, and remote app wiping for enhanced privacy.
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Private Message Box
by Vartit Technology Private Limited
Free
Secure your private conversations with password protection. Send unlimited texts, photos, and location details to other users for free. Enhance your privacy with a virtual number option.
Password protected conversationsFree texting between usersSend unlimited text, photo, and location
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Letstalk IM
Secured Private Communication
Free
Secure and private communication for individuals and businesses globally. Offers multiple encryption layers for messages and calls, cross-device support, and advanced chat settings. Share files, save important messages, and utilize disappearing messages for enhanced privacy.
Multiple encryption layersCross-device supportMulti-account management
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Vumber – Business Phone Number
Numbers for Calling & Texting
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Obtain a dedicated business phone number to separate personal and professional contacts. Easily set up local or toll-free numbers for calling, texting, and faxing, with optional features like call recording and transcription.
Dedicated business phone numbersLocal and toll-free optionsMake and receive calls
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Hi - Instant Messenger
by Hi Technology, Inc.
Free
This free communication app enables WiFi calls and video calls with friends, along with text, voice, and media messaging. It offers unlimited international calling, HD video, and extensive cloud storage for photos and videos, all without ads or hidden costs.
Free WiFi calls and video callsText, voice, image, and video messagingUnlimited international calling
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Ant Messenger
End-to-End Messaging&Calls
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This secure messaging app offers end-to-end encrypted chats and calls, prioritizing user privacy. It features self-destructing messages and robust security measures to protect your conversations from unauthorized access.
End-to-end encryptionEncrypted voice and video callsBurn after reading messages
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BrightChat - Messaging & Call
Secure Messaging & Call
Free
This app provides secure and private communication through end-to-end encrypted messaging and calls. It offers features like scheduled and disappearing messages, as well as group chats for staying connected with loved ones.
End-to-end encrypted messagesEncrypted audio and video callsSchedule messages
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KeeperChat Encrypted Messenger
Private Secure Text Messaging
Free
This secure messaging app offers end-to-end encryption and a zero-knowledge architecture for ultimate privacy. Features include self-destructing messages, message retraction, biometric login, and a private media vault that keeps photos off your device's gallery.
End-to-end message encryptionSelf-destruct timerMessage retraction
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