Records only
"You got", "Mark paid" and "Record payment" write an entry. Nothing is charged, sent or withdrawn.
Security & privacy
There is no money in it for anyone to take.
CashBooklet records money and never moves it: no bank link, no card, no wallet. What it does hold, your record, travels only over HTTPS and is locked on your phone with a PIN or fingerprint.
App lock
A 4-digit PIN every time the app comes back, and fingerprint or face on phones that have it.
Encrypted in transit
The app, the website and the API are served only over HTTPS.
Contacts stay on your phone
Choosing a friend from your contacts reads them on the device. They are never uploaded.
Share only what you choose
A shared book shows only that book. Receipt photos are private and shown only to signed-in people with access.
An honest history
Entries are voided with a reason, never erased. Owners see who added, edited or approved what, and when.
Your data, your call.
Export your book as PDF, Excel or a full backup at any time. Delete your account from inside the app: it is disabled at once and erased after 30 days. Read the privacy policy, the terms and how to delete your account.
Found a security problem? Write to [email protected]. Details are in our security.txt.
Questions
Can anyone take money through CashBooklet?
No. There is no bank link, card, wallet or payment inside the app. It only writes down what happened.
Are my contacts uploaded?
No. When you pick a person from your phone's contacts, they are read on the phone. Only the name and number you choose are saved in your book.
What happens to the copy on my phone when I sign out?
It is erased. The app first warns you how many changes have not synced yet.
How do I delete my account?
From inside the app, or by following the steps on the account deletion page. The account is disabled at once and erased after 30 days.