Multi Timer is a simple, reliable and most customizable timer and stopwatch app. It can run multiple timers at once or separately.
Very useful in many situations, such as cooking, sports, games, etc.

✔ Reusable timers with many settings
Each timer can have a different name, alarm sound, length, color label, vibration on/off, and alarm animation, including a cute tail wagging cat alarm animation.

✔ Intuitive and easy to use user interface
The application is designed to be used easily and quickly.

✔ Timers grouping
Each timer group can have up to 100 timers and a maximum of 30 timer groups can be created.

✔ Run in background
The application does not need to be running in the foreground. Once the timers start, the app wakes up even after you restart your phone when the time is up.
It is possible to show only notifications instead of putting the app in the foreground when the time is up.

✔ Timer link
Timers can be linked. The linked timer starts automatically when the linked timer ends. It is also possible to link a group of timers and start all the timers in the group.

✔ Text to speech (voice alarm)
Each timer can have a different free text voice alarm. Playing timer title, end time and timer note is supported.

✔ Many color themes
24 color themes are available. You can even change the colors of individual rooms, including notification icon colors.

✔ Timer color labeling
Each timer can be color labeled.

✔ Super customizable
So many things are customizable. Font size, buttons to hide/show, many settings related to notifications, alarm animations, whether or not to highlight the application in the event of an alarm, etc.

✔ Useful sorting functions
Timers can be sorted by remaining time, elapsed time, etc. in real time automatically or manually.

✔ Fixed numeric keypad allows quick entry of timer time
The numeric keypad in the timer creation window allows you to enter the timer time very quickly.

✔ Other features
• Auto-repeat timers (1 to infinite)
• Single stopwatch
•Enable/disable timers
• Note on timer for individual timers
• Super flexible timer title (multiple dynamic parameters can be used in title)
•Four types of alarm animation. Alarm clock, bell, firework, bell and cat wagging its tail
• Show expected end time or remaining time in notification
• Import/export timers and application settings
•Notify when timers end or alarms end
• Timer event history
• Easily increase the duration of active timers (by quick menu, single tap and double tap)
•Show elapsed time, scheduled end time and original timer time
• Manual sorting or automatic sorting in real time
• Cloud backup support so that settings and timers are recovered when switching devices
•Four different sizes of fonts and buttons are selectable
• Ability to select which buttons to show and hide
• Initial focus position and focus shift direction of time fields on the timer creation window are selectable
•No ads for paid version

There is also a free version of the app with ads.
Free multi timer