The offline expense tracker that never sends your money data anywhere

An offline expense tracker stores every transaction on your phone rather than on a company server. It works fully in airplane mode, needs no account and no bank login, and keeps your financial history readable only on the device that recorded it.

That definition rules out most apps that advertise themselves as offline. The distinction that matters is between an app built offline-first and one that merely has an offline mode, and it decides what actually happens when you open it on a plane:

Where your data lives. Every transaction, budget and split group is written to a database file inside the app's own private storage on your phone. There is no account to create and no server holding a copy, which is why the app opens straight into your data instead of a login screen, and why it behaves identically in airplane mode as it does on Wi-Fi.

How you back it up. Because nothing syncs automatically, backup is a deliberate step you control. Settings → Backup writes a single JSON file containing your full history, which you can save to Google Drive, iCloud Drive, or your computer. Restoring on a new phone is Settings → Restore and picking that file. The right way to back up an offline finance app walks through a schedule that takes about a minute a month.

What happens if you lose the phone. This is the honest trade-off of offline-first, and it is worth stating plainly: no cloud copy means that if you lose the device and have never exported a backup, the data is gone. Nobody can recover it for you, including us. That is the same property that makes the app private — there is no copy anywhere to leak, sell or subpoena. Export a backup after you set the app up, and you get the privacy without the risk.

The usual objection to offline tracking is that you have to type everything in yourself. That is true of most offline apps, and it is why people drift back to a cloud tracker that reads their bank feed. This app takes a third route: it reads the transaction alerts your bank already sends to your phone, and it does the reading on the phone.

About the SMS permission. Read-SMS is a sensitive permission and you should be suspicious of any finance app that asks for it. Here is the check that matters, and you can do it before installing: open the Google Play data safety section and look at what the app says it collects and shares. This app declares no collection of your financial data, because parsing runs on the device and only the extracted amount and merchant are written to your local ledger — never uploaded. Network access is used for store purchases, not for your data. If you would rather not grant SMS at all, every other feature works normally and you enter transactions manually.

UPI alerts parse the same way, which matters in India where most day-to-day spending now runs through UPI rather than cash.