Pocket Steganography vs WhatChanged

Hiding in Plain Sight. Pocket Steganography is a professional-grade security tool designed for journalists, researchers, privacy advocates, and security professionals who require more than just encryption. While standard encryption protects your data, it also announces that you have something to hide. Pocket Steganography solves this by embedding your encrypted files inside the invisible noise of standard WAV audio files. To the naked eye, and to standard media players, your file appears and plays as a normal audio track. THE PROFESSIONAL STANDARD Built with the Apple Human Interface Guidelines in mind, the app offers a modern, drag-and-drop interface on macOS, iPadOS, iOS and visionOS, powered by a robust, audit-ready steganography engine. CORE FEATURES: Dual-Layer Security: Your files are not just hidden; they are first encrypted. Even if the steganography is detected, the payload remains inaccessible without your password. AES-256 GCM Encryption: We use the industry standard for authenticated encryption, ensuring data confidentiality and integrity. LSB Encoding: Utilizing Least Significant Bit modification on 16-bit PCM WAV files ensures the audio carrier remains perceptually identical to the original. Cross-Platform Workflow: Start encoding on your Mac, drop the file via AirDrop to your iPhone, and extract it on the go. Go spatial on Apple Vision Pro. Drag & Drop Simplicity: An intuitive interface designed for rapid workflows. Data Sovereignty: 100% offline processing. No cloud, no servers, no tracking. Your keys are derived locally on your device. TECHNICAL SPECIFICATIONS: For those who demand to know what happens to their data: Carrier Format: RIFF WAVE (16-bit PCM). Steganography Method: LSB (Least Significant Byte modification of 16-bit samples). Key Derivation: HKDF-SHA256 with a unique salt constant. Cipher: AES-GCM (Galois/Counter Mode) for high-performance, authenticated encryption. Payload Structure: Length Header (32-bit Little Endian) + Encrypted Payload. IDEAL FOR: Secure Data Transport: Move sensitive documents across borders inside music playlists. Intellectual Property: Watermark audio assets with hidden ownership metadata. Private Archiving: Store backup keys or seed phrases inside your music library. PREMIUM MODEL Pocket Steganography is a one-time purchase for professional utility. No subscriptions, no ads, no data collection. Secure your data by making it invisible. Download Pocket Steganography today.

WhatChanged is a file and folder comparison app built to answer one practical question: what changed between these two copies? Compare two files or two folders on iPhone, iPad, and Mac and get a clear summary of added, removed, modified, renamed, and identical items. Use optional SHA-256 verification when metadata alone is not enough. On iPhone and iPad, start inside the app or send exactly two files from Files straight to WhatChanged. It is useful for backups, exports, cloud-drive copies, builds, and any “did this transfer match?” check. ◼ File and folder comparison • Compare two files or two folders as Left and Right • Review added, removed, modified, renamed, and identical items • Use smart ignore rules for hidden items, extensions, names, and patterns • Ignore line-ending or whitespace-only changes when appropriate • Preview supported files, keep recent comparisons, and export or share reports • Verify content with optional SHA-256 and cached re-checks • Use the app in 25 languages, with an optional in-app language override ◼ From the share sheet In Files, or another app that can share files, select exactly two files. Tap Share → WhatChanged. The comparison opens automatically. Tip: The extension is intended for file-to-file comparison. To compare folders, open the main app. ◼ Safe Merge Run a folder comparison, open Safe Merge, and choose a main rule: Newest, Oldest, Smallest (New), Smallest (Old), Biggest (New), or Biggest (Old). The Safe Merge Assistant shows selected items, recommendations, conflicts, blocking issues, output details, and safety checks before anything is copied. For individual output paths, you can keep the main Merge Rule or choose Left or Right. Recommended continues to show what the main rule would choose, while Selected shows what will actually be copied. The “+ Custom” indicator appears whenever exceptions are active. WhatChanged recalculates the plan and verifies it again before copying. Custom merges use a clearly named output folder, such as “Safe Merge by WhatChanged (Newest + Custom).” Successful merges include a generated README describing the compared folders, main rule, custom selections, copied items, output paths, counts, and safety notes. ◼ Quick text checks Use Direct Text Compare, supported text files, or folder-pair text results for convenient text checks. Copy a unified-diff-style result, search with Find in Diff, move between matches, highlight rows, and review Diff Summary counts. These text tools are included for quick comparison inside a file-and-folder utility. WhatChanged is not designed as a full drafting workspace. ◼ Looking for a dedicated text workspace? DiffDraft is designed specifically for comparing text versions and composing a clean final draft in a row-aware workspace. Source rows, draft rows, manual rows, and intentional gaps stay visually aligned, helping long reviews remain stable and trustworthy while you cherry-pick, edit, and continue later. View DiffDraft on the App Store: https://apps.apple.com/us/app/diffdraft/id6779625050 ◼ Safe by design WhatChanged does not modify or delete your originals. Comparisons are read-only. Safe Merge writes only to a new output folder after you confirm the merge and every required safety check passes. ◼ Official website Product information, support, privacy details, and terms are available here: https://hazybyte.studio/whatchanged/ Requires iOS 16.6 or later. Terms of Use: https://hazybyte.studio/whatchanged/terms-of-use/