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Two features, same underlying mechanism: a snapshot of where you are in your cycle, shared only when you choose to, encrypted with a password only you set.
Partner View and Partner Mode both share the same thing: a snapshot of your current cycle — what day you're on, your current phase, your average cycle and period length, and your next predicted period and ovulation dates.
You generate a single, self-contained HTML file — no app required to open it, no account, no internet connection. It's locked behind a password you choose. Whoever opens it enters that password and sees the snapshot above, translated into whichever of the 10 app languages they pick inside the file itself.
It's a static export, not a live connection: it reflects one moment, not an ongoing sync. Once it's shared, it can't be remotely revoked — there's nothing to switch off, because there's no connection to begin with. You stay in control of what happens next: whether you create another one, and when.
If your partner wants the same snapshot to persist on their own device rather than a one-off file, they can import that same exported file directly into the app, which switches their copy into a permanent, read-only Partner Mode dashboard — still just the snapshot, nothing more.
Switching a device out of Partner Mode back to normal use requires proving you're the device owner first — your app lock PIN or biometric, or your backup passphrase verified against your real encrypted backup. If neither is set up, it falls back to a confirmation prompt, since the app then has no way to tell the owner apart from anyone else holding the phone.
The password you choose derives an AES-256-GCM key via PBKDF2 with SHA-256, at 150,000 iterations — the same mechanism used for encrypted backups (see our Security page for the full picture). A random salt and IV are generated per export, so the same password never produces the same ciphertext twice.