Privacy Policy

JxFinances (com.jx.finances) — last updated 16 September 2026

JxFinances does not collect your data. There is no account to create, no analytics, no advertising and no tracking of any kind. Your balances, goals and projections are calculated on your device and stored only on your device. The developer cannot see them.

What the app stores, and where

Everything you enter — accounts, balances, the history of every balance change, savings goals, your settings and your conversations with the optional AI advisor — is written to a database in the app's private storage on your phone. No copy is sent to the developer or to any server.

If you use the backup feature, the app writes an encrypted-at-rest-by-your-device file to the location you choose. Backups deliberately never contain your AI API key or your server address.

What leaves your device

Three things, and only when the relevant feature is used:

DestinationWhat is sentWhen
Frankfurter
api.frankfurter.app
A request for public exchange rates. No balances, no identifiers. When rates are older than one hour and you hold more than one currency.
CoinGecko
api.coingecko.com
A request for public crypto prices. No balances, no identifiers. Only if you hold a crypto account.
Your AI provider The financial summary and questions you send to the advisor, plus any statement you choose to import. Only if you configure an AI provider yourself.

With no AI provider configured, and no foreign-currency or crypto accounts, nothing at all leaves your device.

The AI advisor is optional, and it is yours

The advisor only exists once you supply your own credentials for your own AI account. You choose the provider: Anthropic, any OpenAI-compatible service such as OpenAI or OpenRouter, or a model running on your own machine on your own network — in which case your financial data never leaves your home network at all.

When you use the advisor, your data goes directly from your phone to that provider. It does not pass through the developer, who has no server and receives nothing. That provider's own privacy policy and data-retention terms then apply to what you send, so it is worth reading them.

Your API key and server address are stored only on your device and are never transmitted anywhere except to the provider you pointed them at.

Permissions

The app requests no other permissions. It cannot read your contacts, location, photos, messages or files apart from a backup file you explicitly pick.

What this app is not

JxFinances does not connect to your bank and never asks for banking credentials. Balances are entered by hand. There is nothing for the app to log into on your behalf.

Children

The app is not directed at children under 13 and collects no data from anyone, including children.

Deleting your data

Uninstalling the app removes its database and settings from your device. Because the developer holds no copy, there is nothing to request the deletion of and no account to close. Any backup file you created is yours to delete.

Changes to this policy

If this policy changes, the updated version will be published at this address with a new date above. Material changes will also be noted in the app's release notes on Google Play.

Contact

Questions about this policy: juanbelonperez@mpg.io