flomo supports PWA ( Progressive Web Apps ) So you don't need to download the app, you can create desktop shortcuts with Chrome/Edge and open them faster.
Win/Mac/Linux
1.
Visit flomoapp.com
2.
Login with your account
3.
Create a desktop shortcut according to the image below
Take edge browser for example
iPhone/iPad
1.
Open flomoapp.com in Safari
2.
log in
3.
click the share button below and select "Add to Home Screen".