BTWN – Hide Messages in Photos

Hide secret messages inside any photo. AES-256 encrypted. No account needed. No servers. Fully offline. Nobody sees your messages — not even us.

BTWN lets you hide encrypted text messages inside ordinary photos. To anyone looking at the image — it's just a photo. Only the person with the password sees what's between the pixels.

HOW IT WORKS

Tap Encrypt, write your message, set a password, and choose a photo. BTWN invisibly embeds your encrypted text into the image using steganography — the science of hiding data inside other data. Share the photo anywhere. On the other side, tap Decrypt, upload the photo, enter the password, and your message appears.

The photo looks completely unchanged. The message is completely hidden.

WHY BTWN IS DIFFERENT

• AES-256 Military-Grade Encryption — Your message is encrypted before it's hidden. Even if someone discovers the technique, the content is unreadable without your password.

• Zero Servers — BTWN never transmits your data anywhere. There is no backend. There are no accounts. Nothing is stored in the cloud.

• Fully Offline — Works with zero internet connection. Encrypt and decrypt entirely on your device.

• No Account Required — Open the app and start using it. No sign-up, no email, no phone number.

• Works with Any Sharing Method — Send the image over iMessage, WhatsApp, email, AirDrop, or post it publicly. The hidden message travels with the photo invisibly.

• Clean, Minimal Interface — Two buttons. Encrypt or Decrypt. Nothing more than you need.

WHO USES BTWN

Journalists protecting sources. Couples sharing private notes. Friends playing secret message games. Privacy advocates who want communication without a digital trail. Creatives hiding easter eggs in their work. Anyone who values a private space that looks like nothing at all.

PRIVACY BY DESIGN

BTWN collects zero data. No analytics, no tracking, no advertising. Your photos and messages never leave your device. We built BTWN because we believe some conversations should stay invisible.

AES-256. Zero servers. Fully offline. What's between the pixels is yours.

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