Marvin is built from features you switch on and off, so it fits the way you work. On your phone, you manage them on the Features screen.
Opening the Features screen
Tap More > Features.
Screenshot to add: The Features screen with search, filter chips and sections
Finding a feature
Tap On or Off to see only features that are on or off.
Tap a group chip (like Focus or Time Management) to see just that group.
Features marked NEW were just added to mobile.
Turning a feature on or off
Tap the switch next to it. That's it.
Learning about a feature and changing its settings
Tap the feature's name to open its sheet:
Description: what it does, often with a short video and a How to use it section.
Settings: the options you can change on your phone. Some options can only be changed on the web or desktop app. They're listed under Configure on desktop and still apply on your phone.
A gear next to a feature means it has settings you can change on your phone.
Screenshot to add: A feature's sheet showing Description and Settings
Phone and web: how they work together
At first, your phone uses the same features as your web and desktop app.
If you switch a feature on or off on your phone, your phone keeps that choice, even if you change it on the web later. This lets you keep your phone simpler than your computer, or the other way round.
Your phone choices sync to your other phones and tablets.
Features you never switched on your phone keep following the web.
Features without a switch on mobile
Some features don't have a switch on the phone yet but still work there if you turn them on on the web or desktop app. Examples: Backburner, Snooze, Dependencies, Review Dates, End Dates, Smart Lists and Reward Points.
See Which features work on mobile for the full list.