Hoodik vs Koku
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Hoodik
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Hoodik is the client for your own Hoodik cloud storage server. Every file is encrypted on your device before it leaves, so the server never sees your data. YOUR FILES. YOUR KEYS. YOUR SERVER. All encryption and decryption happens locally on your device using native Rust cryptography. The server stores only ciphertext, and your private key never leaves your device. Not even the server administrator can read your files. FEATURES • Quantum-Proof Encryption: post-quantum hybrid key wrapping (X25519 + ML-KEM-768) with Ed25519 identities, so your files stay private even against future quantum computers. Each file gets its own key, sealed so only you can open it. • Secure Sign-In: login uses OPAQUE, so your password is never sent to the server. Existing accounts upgrade to the new encryption automatically the next time you log in. • Fast Chunked Transfers: upload and download large files with concurrent chunked transfers, real-time progress, and integrity checks. Where the server allows it, chunks move straight between your device and its storage. Interrupted transfers pick up where they stopped. • Encrypted Sharing: share files and folders with other Hoodik users end-to-end encrypted, with reader, editor, and co-owner roles and group sharing. Or create public links with the decryption key in the URL fragment, so recipients get the file without ever seeing your key. • Markdown Notes: write encrypted notes in a full markdown editor with version history. Notes sync to your server like any other file, ciphertext only. • File Preview: view images, videos, PDFs, and text files decrypted locally on your device. • Work On Many At Once: select several files and export or pin them in one go. • Privacy-Preserving Search: find notes by what is written inside them, not only by their names. Words are tokenized on your device under keys the server never holds, so it matches a query without learning a word of it. • Offline Access: pin files for offline use. Cached files stay encrypted on disk, and you set how much room the cache may take before older unpinned copies go. • PIN & Biometric Unlock: protect your account with a PIN or Touch ID / Face ID. • AI Access on Mac: a built-in MCP server lets local AI assistants work with your files on your terms, secured with a token you control. Decryption still happens only on your device. • Multi-Server Support: connect to multiple Hoodik servers with different accounts. • Light and Dark: pick the appearance in Account, or follow the system. Menus and navigation follow each platform's own conventions. SECURITY YOU CAN TRUST Hoodik uses modern, post-quantum cryptography: hybrid X25519 + ML-KEM-768 key wrapping, Ed25519 signatures, and AEGIS-128L and AEGIS-256 for fast hardware-accelerated encryption, with Ascon-128a and ChaCha20-Poly1305 as alternatives. Login uses OPAQUE so your password never crosses the network, and SHA-256 and BLAKE2b handle hashing and integrity. Older accounts using RSA-2048 migrate to the new keys automatically. FULLY AUDITABLE The complete source code of the app is published on GitHub, and the Rust crypto engine is shared across every Hoodik client. Read the code, build it yourself, verify every claim: https://github.com/hudikhq/hoodik-client NO TRACKING. NO ANALYTICS. NO ADS. Hoodik contains no analytics SDKs, no crash reporting tools, and no advertising frameworks. We don't track how you use the app. WHAT YOU NEED Hoodik connects to a Hoodik server. Run one yourself on your own hardware, or let us run a private instance for you at https://hoodik.cloud. Either way, your files are encrypted on your device first, so nobody who operates the server can read them, us included. The server's source code is published, and it's free for personal use: https://github.com/hudikhq/hoodik Deploy in minutes with Docker. Privacy Policy: https://hoodik.io/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Koku
This app helps you focus on tasks with customizable work and rest intervals. It offers a simple, distraction-free interface and integrates with your home screen and Apple Watch for easy access and control. Enjoy deep work without accounts, streaks, or subscriptions.
- Customizable focus and rest sessions
- Classic Pomodoro rhythm option
- Home Screen widget for quick access
- Live Activities on lock screen
- Apple Watch companion app
- Minimalist, distraction-free design
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Koku is a focus timer for deep work. Focus. Rest. Repeat. Set your own session lengths or use the classic rhythm - twenty-five minutes of focus, five minutes of rest, a longer break every four sessions. Each minute is a dot. Watch them fill. - No accounts. - No streaks. - No subscriptions. Just time, and the work in front of you. Add Koku to your Home Screen for quick access - start, pause, and skip sessions right from the widget. Keep the timer visible on your lock screen with Live Activities. Koku also includes an Apple Watch companion app that works with the iPhone app, so you can check your timer and control sessions from your wrist. Designed for iPhone, with an Apple Watch companion. Light and dark mode. Works in any language. Koku (刻) is the Japanese word for a moment of time.
Screenshots
Verdict
The clearest difference is in-app purchases: Koku at none against Hoodik's 3. Hoodik's advantage is device support (4 vs 2) and iOS requirement (15.0 vs 26.4). On price, update cadence and ads 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. Hoodik sells 3 in-app purchases, starting at $4.99 per month. Koku asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.
| Parameter | Hoodik | Koku |
|---|---|---|
| Price | Free | Free |
| Rating | — | 3.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 days | Every 3 days |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, Apple Watch |
| Requires iOS | 15.0 — better | 26.4 |
| Further details — not scored | ||
| Size | 68 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | TIBOR HUDIK | Rodolfo Alberto Lopez Terriquez |
In-app purchases
Hoodik
- Monthly$4.991 Month
- Yearly$44.991 Year
- Lifetime$99.99
Koku
No in-app purchases









