Your data never leaves your machine.

No account, no login, no cloud of ours. Everything lives in a local file — and with a passphrase set, that file is genuinely encrypted, not just hidden behind a screen. If you choose to sync it to a second machine, only that encrypted file moves, and only through storage you already own.

• AES-256-GCM encryption at restA scrypt-derived key makes your file unreadable ciphertext without the passphrase. There is no backdoor — and no recovery if you forget it.
• Works fully offlineLast-known prices are cached and painted instantly on launch — your whole position is there with no network at all.
• Optional sync, still no server of oursWant it on a second computer? Point it at a folder you already sync — Dropbox, OneDrive, a shared drive — and only the encrypted blob is written there. Your holdings are never readable on the shared drive, and nothing routes through us. Newest edit wins, and the older one is always backed up.
• Portable backups & local PDF reportsExport a plaintext backup or a designed one-page report, generated on your machine with no service involved.
• Your licence is checked offlineLicences are Ed25519-signed and verified entirely on your machine — no activation server, no phone-home, nothing to switch off. The app ships only the public key, so it can verify a licence but never mint one.
• Hardened buildPackaged builds run with Electron's security fuses applied and asar integrity validation on — a modified archive refuses to launch.