MFKAPPS 4 min read
Building Subly: the calendar math behind subscription renewal dates
Predicting a subscription's next charge date sounds trivial until you hit month-end billing, leap years, and trial conversions. Here's how Subly gets it right, on-device.
#android
#engineering
#subscriptions
MFKAPPS 5 min read
Building Mintly: keeping a focus timer accurate when Android kills the process
A running Pomodoro timer has a harder reliability problem than a one-shot reminder. Here's how Mintly survives Doze, process death, and screen-off drift with a foreground service and a wall-clock end time.
#android
#engineering
#mobile
MFKAPPS 7 min read
How I ship Android apps as a solo developer in 2026
An actual end-to-end launch playbook for shipping a Kotlin + Compose Android app alone in 2026 — scope, build, Play Store listing, and the boring bits that decide whether you ever launch.
#android
#indie
#mobile