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Privacy policy

Last updated: 17 September 2026

Extraby (“we”) provides money books, expense tracking, receipts, splits, and related services on the web and in the Extraby Android app (package com.byjanbooks.app).

Information we collect

How we use it

We use this information to run your books, sync across devices, send the notifications you enable, prevent abuse, and improve reliability. We do not sell your personal information.

Processors

We use infrastructure providers such as Vercel (hosting), Neon (database), Firebase (authentication and Android notifications), and email providers to deliver invites and inbound receipt mail. They process data only to provide those services.

Retention and your choices

You can edit or delete entries in the app. You can disable notifications in system settings. To request account deletion see Delete your account. To request deletion of some data while keeping the account, see Delete your data. You can also email byjanbooks@gmail.com.

Children

Extraby is not directed at children under 13.

Contact

Extraby — byjanbooks@gmail.com