This policy applies to the Android application FileKit (package name com.snfs.filekit, the "App"). The App provides, among other things: video/audio/image compression, format conversion, trimming and merging, mosaic processing, encryption and decryption, archive packing and extraction, an encrypted file vault, media playback, a built-in browser with web search, and downloading publicly accessible direct video links.
We collect no personal information. The App does not collect, read, upload or otherwise transmit:
To restore your previous state on the next launch, the App stores a small amount of settings and records on your own device (in the app's private storage, which other apps cannot read):
| Data | Purpose | Location |
|---|---|---|
| App settings | Interface language, volume boost and loudness parameters, sound effect and channel selection | On device |
| File list and tags | Keeps the files you added to the file manager and their tags | On device |
| Bookmarks and history | Browser bookmarks and history lists | On device |
| Download records | Name, size, duration, time and thumbnail of downloaded files | On device |
| Encrypted files | Files you encrypted yourself, saved where you choose | Your chosen folder |
None of this data leaves your device. You can delete individual records in the App at any time, or remove everything at once by uninstalling the App.
The App requests only the following three permissions, each used solely for its stated function:
| Permission | Purpose |
|---|---|
| INTERNET | Loading web pages you visit, sending your query to the search engine you picked, downloading public direct video links you request |
| ACCESS_NETWORK_STATE | Checking connectivity so the App can show a proper message instead of retrying endlessly offline |
| VIBRATE | Haptic feedback for the player and long-press actions |
The App does not request contacts, SMS, call logs, camera, microphone, location, background location or full app-list access, and does not request broad storage permissions. Files are read and written exclusively through the Android Storage Access Framework, which grants the App access only to the specific file or folder you pick.
The App includes an Android WebView browser with web search entry points (Google, Bing, Baidu, Sogou, DuckDuckGo; whichever you select receives your query). When you use them:
While you browse, the App parses the current page locally to detect publicly accessible direct video links (mp4 / m3u8) and lists them for download. Parsing happens entirely on your device and results are never sent to any server. Download requests go directly from your device to the website hosting the video.
The App has no backend server. We do not receive, store or process any data from the App. There are no ad networks, analytics, user profiling or push services inside the App.
Encryption uses standard, well-established cryptography:
All cryptographic operations run locally on your device. The password you set exists only in your memory: the App never stores the plaintext password and never uploads it. Therefore a forgotten password cannot be recovered, and we cannot help you restore the encrypted file. Keep your password and key safe.
The vault can be unlocked with your device lock (fingerprint, face or screen-lock PIN). This uses the Android biometric API: biometric data stays in the secure hardware module of your device. The App only receives a pass or fail result and cannot access, store or transmit your biometric data.
The App bundles open-source components (FFmpeg, OpenCV, AndroidX Media3, Apache Commons Compress and others) as local libraries. None of them perform data collection. The full list and licence texts are available in the App under Open Source Licences.
The App integrates no advertising, analytics, crash-reporting, social-login or payment SDK.
The App is not directed to children and does not knowingly collect personal information from children (it collects no one's personal information). If you are under 14 (or the corresponding age in your jurisdiction), please read this policy with a parent or guardian before using the App.
Under applicable laws such as the EU GDPR, the California CCPA/CPRA and China's Personal Information Protection Law (PIPL), you have rights to be informed, access, rectify, erase and withdraw consent. Because the App collects and stores no personal information, these rights are in practice exercised directly on your device: view, change or delete any local data in the App, or uninstall the App to erase everything. If you still have questions, contact us at the address below.
We may update this policy when the App's functionality changes (for example, adding network features or third-party services), and will revise the "Last updated" date at the top of this page. Material changes will be noted in the App's release notes. Continued use of the App constitutes acceptance of the updated policy.
Questions, comments or complaints about this policy:
Email: snfsxxx@gmail.com
We aim to reply within 15 business days.