Sandboxed Google Drive Cloud Sync Guide
Learn how our privacy-first cloud synchronization architecture guarantees 100% data ownership. Back up your watchlists, portfolio holdings, and simulated trades securely inside your own Google Drive.
🔒 12.1 The AppData Sandbox Guarantee
Unlike traditional financial apps that store your financial trades and watchlists on corporate servers, Kuni, US-Market Forecaster utilizes an uncompromising Local-First, Zero-Knowledge cloud architecture.
Strict AppData Scope Only
The app requests strictly sandboxed application data storage permissions. It operates inside an isolated, hidden application folder in your Drive that no other app can access.
Zero Access to Personal Files
The app literally cannot see, list, or read your personal Google Drive documents, spreadsheets, photos, or personal files.
AES-256 Client-Side Encryption
All database snapshots (portfolio, transactions, watchlist) are encrypted with military-grade AES-256 before uploading.
🔄 12.2 Multi-Device Restore Workflow
Upgrading to a new Android smartphone or switching between a tablet and a phone? Restoration is completely effortless:
Install App on New Device
Download Kuni, US-Market Forecaster from Google Play onto your new Android device.
Sign In with Google
Tap "Continue with Google" using the same Google Account.
Automatic Seamless Restoration
During the quick 3-second Initial Sync sequence, the app connects to your Google Drive AppData container, downloads your latest encrypted snapshot, and restores your entire portfolio ledger, watchlists, and subscription status instantly!
📶 12.3 Offline Mode & Conflict Resolution
What happens if you execute trades while on an airplane or without cellular reception?
- All trades and watchlist changes are saved immediately into your phone's local database.
- The app queues changes in a secure offline-first queue.
- As soon as internet connectivity returns, the app performs a silent background synchronization with your Google Drive AppData container.