Windows App

What it is

MyPwdTool for Windows is a native desktop app built on the same encryption and sync engine as the macOS and iOS apps — the exact same key derivation, per-field AES-256-GCM encryption, and sync protocol described in Security & Encryption and Synchronization apply identically here. What differs is scope and platform integration, listed exhaustively below.

Current limitations (v1)

• Single vault only. The macOS/iOS multi-vault feature (see Local Vaults & Backups) isn’t available yet on Windows.
• Can join a sync group, but can’t create one. Group creation is tied to the paid subscription, which currently only exists on Apple’s App Store (and, once available, Google Play) — see Subscription & Pricing. Start a group on macOS or iOS, then join it from Windows.
• No biometric unlock. Windows Hello integration isn’t implemented — unlocking always uses your master password.
• No signed installer yet. The installer isn’t code-signed, so Windows SmartScreen will show a warning (“Windows protected your PC”) the first time you run it. This doesn’t indicate a problem with the app itself; it’s purely because code-signing certificates cost money on an ongoing basis and haven’t been set up yet.
• No automatic updates. MyPwdTool checks for a newer version on launch and shows a banner if one is available, plus a manual “Check for updates” button in Settings — but you download and run the installer yourself; nothing updates itself silently in the background.
• TOTP and passkey fields are view/store only — same underlying data as macOS/iOS (see Password Health & Breach Check), but no dedicated generation UI beyond what’s already there.
• The Chrome extension can’t unlock a locked vault by itself. Unlike on macOS, where you can type your master password directly into the extension’s popup, on Windows you need to unlock the main MyPwdTool window first before the extension can fill anything.

Chrome extension

The same autofill/save experience as the macOS Chrome and Safari extensions is available on Windows, via a small companion process the main app installs and registers with Chrome automatically the first time you connect the extension — no manual registry editing needed.

Distribution

Currently distributed directly from this site as an (unsigned, see above) .msi/.exe installer. There’s no Microsoft Store listing today.

Linux

The same code also builds a .deb package, but it hasn’t yet been independently verified on real Linux hardware — treat it as unsupported for now.