More reasonable wattage/time options would lead to 5 stars
It’s a simple yet unique app addressing a very basic need but the wattage and time increments seem to be entirely arbitrary. I’ve never seen microwave ovens or cooking instructions with wattages in 25W increments, while my own microwave has a timer that can be set in 10-second increments, not 15-second increments. I would either look for a realistic discrete selection of wattages and times, or simply allow for unit increments, maybe just by typing digits instead of selecting predefined values.