Stego

Stego lets you hide private text or images inside ordinary photos and extract them later on your iPhone or iPad.

Choose the method that fits how you plan to share your image. Use LSB-1 for lossless PNG workflows, or choose DCT and GN-QIM for better resilience when working with JPEG and compressed sharing scenarios. Social Media Mode helps prepare images for apps that may resize or recompress uploads.

Features:
• Hide text, notes, passwords, or an image inside another image
• Extract hidden text or image content from supported stego files
• Choose from LSB-1, DCT, and GN-QIM steganography methods
• Use Social Media Mode for messaging and social-sharing workflows
• Improve recovery with built-in error correction
• Get cover-image warnings when a photo is too flat or solid-coloured for reliable embedding
• Support for UTF-8 text, including Chinese, Spanish, and emoji
• Core embedding and extraction run on-device for a privacy-focused workflow

Stego is designed for practical, everyday steganography with clear guidance, flexible workflows, and better reliability across different image types and sharing scenarios.