Launch Chrome from your Android phone, visit www.docommerce.me and tap the blue alert about budgeting on the go.
Tap more_vertical_fill from your Chrome browser, then choose "Add to Home Screen". The app behaves like any other one downloaded from Google Play.
In order to prevent your email provider (Gmail, Outlook...) to put the "Calendar event" message to your Spam folder, add email@example.com to your mail contacts.
Any questions? Just email your questions to firstname.lastname@example.org. We understand French, too.