Private and encrypted on this device.
On iPhone, Calc only keeps your list safe when you open it from your Home Screen. In a Safari tab, your iPhone can delete what you save.
A second factor is needed to continue.
Back up your list? If this phone is lost or reset, a backup file is the only way to get your list back.
Saved the wrong way round? Tap Edit and pick the other side.
Tap a payment to change or delete it.
Also locks when you switch apps or turn off the screen:
“After 30 sec” lets you check another app and come back without signing in again. “Right away” is safest.
Require a second password or an authenticator code to unlock. Changing this re-encrypts all data.
Wrong attempts also add a growing wait (5 s, 30 s, 2 min, 10 min…).
Open as a working calculator instead of the sign-in. Type your PIN, then “=”, to open the sign-in. Forgot your PIN? Hold AC for 5 seconds.
Your invite code shows you’re one of the first 250. It’s kept only on this phone, locked with your data.
AES-256-GCM, keys from PBKDF2-SHA-256 (600,000 iterations, random salt). Fresh key and IVs on every save. Currency: CAD.
Setting it up on this same phone? Tap Open in authenticator app, or copy the key and paste it into the app. Then come back here. You have 2 minutes.
On another device: scan the code below with Google Authenticator, 1Password, Authy, Aegis, etc. It’s made on this phone.
Tried this before? Delete any old “Calc” entry in your authenticator app first, so you don’t pick the wrong one later.
Honest note: this stops someone who only saw your passphrase. It does not protect a copied backup file or a copy of the phone’s data: your passphrase alone opens those. For that, use a second password instead.
This opens your email app with a message you can review before sending. Nothing from your data is included.
Open emailMessage the person who invited you, on Signal. They can walk you through it.
Each button opens your email app with a short message. Nothing is sent until you press send.