Signal is a free and encrypted messaging service that is available on Android and iOS. The app was developed by Open Whisper System, a non-profit organization. The app is targeted towards users who value their privacy and security, and the app has a reputation for being secure.

There are many apps available in the market that offer secure messaging services. Owing to this, it can be difficult to choose the right app for your messaging needs. If you don’t know what to choose, continue reading.

1. Telegram

Telegram is an encrypted instant messaging app, which is widely used for secure messaging. It is available for iOS, Android, Windows Phone, Linux, and OS X. Telegram is a cloud-based messaging app that offers encrypted data transfer. The app is completely free for basic usage.

Telegram has a lot of advanced features such as sync, cloud, group chats, secret chats, etc.

2. WhatsApp

WhatsApp is another most popular messaging app, for both Android and iOS users. It is available for free and has a simple UI. The app has more than a billion users worldwide. It is a cross-platform messaging app that uses the internet for data transfer.

WhatsApp was recently acquired by Facebook, which has raised doubts about its security.

3. Threema

Threema is a mobile messaging application that offers security and privacy. It is available for both Android and iOS. The app uses end-to-end encryption for sending and receiving messages. It has a large community of users and has received a good rating from users.

Threema is a Swiss-based messaging app that has been developed by Threema GmbH.