Crisp Document Scanner vs deBeam

Crisp Document Scanner is built on a simple idea: scanning a document shouldn't require an account, a subscription, or sending your data to a third-party server. All processing happens on your iPhone or iPad, using Apple's own frameworks. Your scans are saved to iCloud and accessible from the Files app on all your devices. No compromises. SCAN IN ONE TAP Open the app and tap Scan. That's it. Automatic edge detection finds the edges of your document and perspective correction straightens it instantly. Scan a single receipt or a 50-page contract in one session. The camera adapts to your environment and captures sharp, clean pages every time. SEARCHABLE PDFs WITH OCR Every scan is automatically processed with on-device text recognition. The result: PDFs where you can search for any word, select text, and copy it to other apps. Looking for an amount on a 20-page statement? Just search. Need to copy an address from a letter? Select and copy. OCR supports English, Spanish, and French, with automatic language detection. Even handwritten text is recognized. PERFECT FOR EVERYDAY DOCUMENTS - Invoices and bills - Receipts and purchase confirmations - Bank and credit card statements - Contracts and agreements - Letters and official correspondence - Meeting notes and memos - Certificates and forms - Any paper document you want to digitize SAVED TO iCLOUD All your scans are saved directly to iCloud and accessible from the Files app on any of your Apple devices. Browse, rename, organize into folders, and manage your documents the way you already manage all your other files. No proprietary format, no lock-in — just standard PDF files in your iCloud Drive. SHARE INSTANTLY Send your scans anywhere. Use AirDrop to share with nearby devices, attach to an email or message, or share directly from the Files app. Works with every app that accepts PDF files. PRIVATE BY DESIGN This is not just a feature — it is the foundation of the app. - No account required. Open the app and start scanning. - No third-party servers. Your documents go to your iCloud, not ours. - No analytics or tracking. We don't know what you scan. - No ads. A clean interface, nothing else. - No subscription. Pay once, use forever. All text recognition and document processing happens locally using Apple's native Vision and VisionKit frameworks. Your documents are yours and yours alone. BUILT WITH APPLE FRAMEWORKS Document Scanner relies entirely on Apple's native technologies: VisionKit for camera scanning, Vision for text recognition, PDFKit for PDF generation, and iCloud for seamless sync. This means fast performance, low battery usage, and seamless integration with iOS. No third-party libraries, no external dependencies, no surprises.

deBeam transfers files directly between devices over local Wi-Fi at full network speed. --- HOW IT WORKS --- Pairing takes just 3 seconds. The receiver taps "Receive" to show a QR code. The sender scans it and taps "Send". Done. No usernames, no pairing codes, no waiting for cloud servers. --- WIRELESS TRANSPORT MODE --- Wi-Fi LAN (Same Network / Hotspot) Already on the same router or connected via a Mobile Hotspot? deBeam uses your existing local network path. Every device keeps its own IP, eliminating IP collisions. Fully cross-platform: transfer between iOS, iPadOS, macOS, and other mobile or desktop platforms with no setup required. Real-world speed: 50-100 MB/s. A 1 GB video transfers in under 20 seconds. High-performance local streaming without routing bottlenecks or cloud dependency. --- PROTOCOL-LEVEL END-TO-END ENCRYPTION --- Security in deBeam is the protocol itself, implemented at the lowest native layer. Key Exchange - X25519 ECDH Every session generates a new keypair from scratch using random bytes from the OS secure random number generator. The receiver's public key is embedded in the QR code. Scanning performs an X25519 Elliptic Curve Diffie-Hellman exchange, producing a shared secret that exists only on those two devices for that one session. The attacker space is 2^255 - computationally impossible to brute force. Key Derivation - BLAKE2b The shared secret is processed through BLAKE2b with the context string "deBeam-v3-session". This binds the derived key strictly to this protocol version, preventing key reuse or replay attacks. Encryption - ChaCha20-Poly1305 (AEAD) Every byte of your files is encrypted with ChaCha20-Poly1305. Files stream in 1 MB chunks, each with a unique nonce derived from its file index and chunk position. No nonce reuse: No two chunks ever share a nonce - cryptographic reuse attacks are impossible. Integrity: Each chunk carries a 16-byte Poly1305 authentication tag. Any tampered or replayed chunk is instantly detected and the connection terminates. Memory Security - crypto_wipe() After the key exchange, ephemeral private keys and session keys are immediately wiped from memory using crypto_wipe(). Past sessions cannot be recovered even if the device is compromised later. Threat Coverage Eavesdropping: Blocked by ChaCha20-Poly1305 encryption. Man-in-the-middle: Blocked by X25519 (cannot forge secret without private keys). Rogue device: Impossible without the QR-embedded public key. Brute force: 2^255 key space - mathematically infeasible. An 8-byte visual key fingerprint ("A1B2-C3D4...") on the receiver's screen allows quick visual verification before files move. --- NATIVE PERFORMANCE --- The encryption and streaming engine is written via native integration using Monocypher 4.0.2 - a compact, audited crypto library. ChaCha20-Poly1305 runs at ~500 MB/s on ARMv8. Encryption overhead is zero compared to Wi-Fi throughput - no speed penalty for maximum security. --- NO SERVER. NO CLOUD. NO ACCOUNT. --- deBeam has no backend infrastructure. No signup, no login, no tracking, no telemetry. QR pairing is computed entirely on-device and works 100% offline. Files travel directly from sender to receiver. --- CORE FEATURES --- Send multiple files in a single session All file types: videos, photos, docs, archives, RAW files, and custom formats Persistent local storage - chosen destination saved securely via Security-scoped Bookmarks No file size limit QR code pairing - no manual IP entry, no accounts Visual key fingerprint for authenticity verification Files saved securely to system Downloads or custom user-defined directory Real-time transfer progress per file Full cross-platform support across mobile and desktop devices deBeam. Beam it. Privacy Policy: https://devitan-docs.gitbook.io/devitans-apps/x.-privacy-policy-for-devitans-apps Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/