Download Paslen Timer from Google Play.
Ensure you’re logged into Todoist through your default browser before setting up the integration.
In the Paslen Timer app, tap the Settings button at the top-right corner of the main screen.
Select the Todoist Integration option and check Enabled.
You’ll be directed to the Todoist authentication page where Todoist requests your permission for the Todoist+Paslen Integration. If you accept, you’ll be redirected to the Paslen website and then back to the Paslen app. The integration is now enabled.