This is a messaging app. you can send a text message, photo or video to your friend and no one else can track or read the text message, photo or video you send, not anyone take a screenshot of your message.
The signal app is a completely secure app created by Signal Foundation and Signal Messenger on July 29, 2014.
Download Signal App for Free – Click Here
Some related questions and answers
Can the signal app run on a computer?
Yes, you can run the Signal app on a computer. you can download it by clicking in the link given above.
What is the signal app?
The signal app is a messaging app from which you can send a text message, photo or video and no one can read the text message, photo or video you sent.