ProgressBars

ProgressBars lets you set a target time and watch a timer count down to it, count up from it, or track the interval to or from that time. It calculates and displays the percentage completed for a time interval, then sends a notification when the timer reaches completion. You can keep several timers together, swipe any timer away to delete it, and drag timers into a preferred order.

For each timer, the display can show time remaining, time elapsed, or both. The display units are configurable in any combination of years, months, weeks, days, hours, minutes, and seconds. That flexibility suits deadlines, anniversaries, long-running projects, waiting periods, and short everyday countdowns without forcing every timer into a single unit.

ProgressBars is an open-source Android app in the Time & Calculators category, intended for people who need visible progress and completion alerts from one or more time intervals. It requires Android 4.4 or newer and has Universal architecture. The current release is version 2.1.2, and contributors can participate in its development through GitHub with an account there.

Recent Android notification and background-execution rules affect how reliably completion alerts arrive, so unrestricted battery usage is recommended for ProgressBars. On Android 12 and 12L, exact alarms are disabled for apps by default, meaning a timer notification may arrive seconds or minutes after the timer ends unless you grant ProgressBars the special Alarms & reminders permission. This exact-alarm limitation did not apply before Android 12, while Android 13 and later use a different permission mechanism for exact alarms.