
Deep Cover - Secret Messages
Hide Secrets in Photos
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Free
About
WHAT IF YOUR PHOTOS COULD CARRY SECRETS?
Deep Cover hides text messages inside ordinary photos using steganography, the practice of hiding information in plain sight. The message is written into the photo's pixel data, in changes too small for the eye to see.
HOW IT WORKS
• Choose a photo from your library, or take one with the camera
• Type your message
• Deep Cover hides it in the photo's pixels and checks that it can be read back
• Share the photo, or save it to your library
• The recipient opens it in Deep Cover's Reveal tab to read the message
PASSPHRASE ENCRYPTION
Add a passphrase to protect your message with AES-256-GCM encryption. Without the passphrase, the message can't be read, even by someone who knows it's there. There is no way to recover a lost passphrase.
HONEST LIMITS
Hidden messages live in the exact pixels of the photo, so send it by AirDrop, iMessage, email attachment, or "Send as File" in WhatsApp or Telegram. Apps that recompress photos, such as Instagram, Facebook, X, MMS, or WhatsApp and Telegram in photo mode, usually wipe the message.
A message without a passphrase is hidden, not locked: anyone with a steganography tool could find it.
PRIVATE BY DESIGN
• No accounts. No servers. No tracking.
• Everything happens on your device
• No internet connection required
• No data collection, no analytics, no ads
• Your photos and messages leave your phone only when you share them
Deep Cover. Your photos. Your secrets.
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What's New in Deep Cover
1.1.1
November 9, 2026









