If you are a premium user, all your data is stored as an SQL (sqlite) file in your Google Drive. This file is downloaded and processed in your browser by Maffin resulting into dashboards with beautiful graphs and custom categories.

Once you delete this book though, all of your financial data is gone from Maffin too.

Every time you create and account or enter a transaction in Maffin, the SQL file is automatically updated in your Google Drive.

If you have SQL skills, Maffin provides an editor that allows you to run any query for your data. This is helpful to obtain data you are not seeing in your dashboards or for correcting wrong data in bulk. Note that the changes you do there are not saved until you press the Save button.