A free app for Android, by Lucidify Labs.
Remind Me - Task Reminder App is an amazing and user-friendly tool for keeping track of things. You can set reminders for all kinds of events like birthdays, anniversaries, meetings, etc.
There are tons of customizable options that you can use to make the reminder more personal. For example, you can set a different ringtone, ring duration, vibration, repeat type, etc. It’s very convenient if you are trying to set a specific ringtone for an event.
You can create as many categories as you want and assign a reminder to the desired category.
You can quickly snooze the alarm for the custom duration like 5 min, 10 min, or so.