The Timer is free on every plan. It does three jobs and the switch under the ring picks which.
Stopwatch
Press Start and it counts up. Lap marks a split without stopping the clock, and the fastest lap is marked so you can see it at a glance. Save puts the session in your records.
Countdown
Pick a preset or type the minutes, then Start. The ring drains as the time goes. When it lands, it chimes, and it saves itself to your records without being asked.
Intervals
Set the work seconds, the rest seconds and how many rounds, and the app tells you the total before you commit to it. Each phase chimes as it changes, and the ring shows the phase you are in rather than the session as a whole, because during a round the only number that matters is the one in front of you.
Why it does not drift
Most timers count their own ticks, which means a phone that sleeps, an app in the background or a slow moment costs them seconds they never get back. Buhata's timer asks the clock instead. Lock the phone for ten minutes and come back: it is right. Close Buhata entirely and reopen it: still right, because the moment you pressed Start was written down.
When it finishes in your pocket
On Android, a running countdown hands its finish line to the alarm clock as you leave the app, and takes it back when you return, so exactly one thing announces the end and your phone does not buzz twice. Interval sessions announce every round the same way, which is the point of an interval session you are not watching.
Your records
The list icon in the header holds the last fifty sessions with a chart of the recent ten. Sessions carry whatever you were timing, if you named it.