KrypterApp vs DevIndex
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
KrypterApp
Encrypt any file or message with advanced, user-controlled cryptography. Your data is secured using your device's hardware and advanced algorithms, ensuring privacy without middlemen or servers. Share securely, knowing only your intended recipient can access your information.
- Encrypt any file type (photos, documents, videos)
- Send encrypted text messages
- Keys stored in Secure Enclave
- Post-quantum encryption (XWing)
- Password protection for double security
- No account or network connection required
- Authenticated encryption for sender verification
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Your private conversations deserve better than "end-to-end encrypted (trust us)." Krypter puts real encryption in your hands: no middlemen, no servers, no fine print. ENCRYPT ANYTHING Photos, documents, voice memos, videos: encrypt any file with HPKE (RFC 9180) and send it any way you like. Only the person you choose can open it. Not us. Not Apple. Not anyone else. ENCRYPTED MESSAGES Write a message, encrypt it, and paste it into iMessage, WhatsApp, email, Signal, whatever. It stays unreadable wherever it travels, except to your recipient. KEYS THAT NEVER LEAVE YOUR IPHONE Every Krypter key is created inside your iPhone's Secure Enclave, the same chip behind Face ID and Apple Pay. The private key can't be exported, copied or read, not even by Krypter. POST-QUANTUM KEY SHARING Invite a contact with a link or QR code. Your public key travels back sealed with ML-KEM, the NIST post-quantum standard, so even a future quantum computer recording today's traffic learns nothing. Everyone sees keys only as SHA-256 fingerprints you can compare in person. CIPHERTEXT THAT SAYS NOTHING Every encrypted message and file starts with a header that looks like random bytes and is padded inside the encryption. Nobody can tell which algorithm was used, whether a password was added, or how big the original really is. PROVE WHO SENT IT Authenticated HPKE lets your recipient verify a message really came from you, not someone pretending to be you. No certificates. No authorities. Pure cryptography. ADD A PASSWORD Stack a shared password on top of the encryption, stretched with 5 million PBKDF2 rounds. Even with the right key, nobody reads it without the password. NOTHING STORED IN THE CLEAR Contacts, key names, dates, settings and the PIN are all sealed on your device with ML-KEM-1024 under the Secure Enclave, and behind your app PIN when it's on. A copy of the phone's storage reveals nothing. TRULY PRIVATE • No account required, ever. Not only not required: there is no way to create one • No network connections: Krypter works fully offline • No data leaves your device unless you share it • No analytics, no tracking, no telemetry • App PIN with a panic PIN, tied to the Secure Enclave and Face ID • Decrypted text hidden from screenshots and screen recordings • Copied text expires from the clipboard after 30 seconds and never syncs to other devices • Privacy screen when you switch apps • No ads, no paywalls BACK UP YOUR CONTACTS Export your contacts in a password-encrypted backup (PBKDF2, 120 million iterations) and restore them anytime. Your keys stay in the Secure Enclave, as they should. STANDARDS-BASED Built on RFC 9180 HPKE, NIST P-256, AES-256-GCM, ML-KEM-768 and ML-KEM-1024, all from Apple's CryptoKit. No proprietary algorithms. No homemade crypto. Krypter is encryption the way it should be: yours.
DevIndex
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DevIndex - Your Ultimate React Native Library Discovery Tool Explore over 2,300+ React Native libraries from the official React Native Directory, all in one beautifully designed app. Key Features: AI-Powered Recommendations Get personalized library suggestions based on your project needs. Our AI analyzes your requirements and recommends the best packages. Comprehensive Library Database Access the complete React Native Directory with real-time data including GitHub stars, weekly downloads, version info, and more. Smart Filtering Filter libraries by: Platform compatibility Category: Navigation, UI Components, State Management, Animation, Storage, Networking, and more Search by name, description, or tags Detailed Library Information View complete details for each library: GitHub stats (stars, forks, issues) NPM download statistics Platform compatibility Expo support New Architecture support License information Direct links to GitHub, NPM, and documentation One-Tap Install Copy installation commands directly to your clipboard with a single tap. Beautiful Themes Choose from multiple themes including Light, Dark, and custom color schemes. Infinite Scroll Seamlessly browse through thousands of libraries with automatic loading. Always Up-to-Date Data synced directly from React Native Directory API. Perfect for: React Native developers iOS app developers Expo developers Mobile developers Download now and supercharge your development workflow.
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Verdict
The clearest difference is iOS requirement: DevIndex at 15.1 against KrypterApp's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
KrypterApp ships an update every 4 days, DevIndex weekly. The most recent releases landed on October 9, 2026 and September 30, 2026 respectively.
| Parameter | KrypterApp | DevIndex |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 4 days — better | Weekly |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 11 MB | 37 MB |
| Age rating | 4+ | 4+ |
| Developer | Pavel Yeschenko | Dao Duong |
In-app purchases
KrypterApp
No in-app purchases
DevIndex
No in-app purchases









