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Ratio, Nau is maintained by one person.

The servers, the infrastructure, and the annual store fees all come out of one developer’s pocket. If Ratio, Nau is useful to you and you want to push it forward, this is where that happens: a voluntary donation, in whatever amount you decide.

The app is free and fully usable without donating anything. A donation supports the project — it is not a purchase.

Where your donation goes

No hand-waving — this is what it costs to keep the app alive.

  • Servers and database

    Hosting, backups, and syncing your recipes across devices. It gets paid every month, donations or not.

  • Services and infrastructure

    The external tools and services that keep the app running day to day. Each one is metered and billed every month.

  • Annual store fees

    Apple and Google charge to keep the app published. It is a fixed fee every year, before the app has earned anything.

Frequently asked questions

Is this a subscription?

No. It is a one-time, voluntary donation: nothing renews, there are no recurring charges, and there is nothing to cancel.

Do I get anything in the app for donating?

No. A donation does not unlock features or content, and nothing changes in your account. It supports the project, nothing more.

How much should I donate?

Whatever you want. There are no tiers, suggested amounts, or minimums — you type the amount on Ko-fi when you confirm.

Can I use the app without donating?

Yes, all of it. The app is free and no feature sits behind a wall.

What if something goes wrong with the payment?

Email us and we will look into it. Payments are processed by Ko-fi, so you can also contact them directly.

Questions before donating? Email us at support@rationau.com.