“I completely forgot about a birthday and couldn’t prepare a present.”
“I forgot an anniversary and ended up upsetting my partner.”
Have you ever had an experience like this?
When you’re busy with work or daily tasks, it’s surprisingly easy to forget important days that come around every year. But if there were an app that gently reminded you several days in advance every year, you would never have to panic again.
That’s where the Android app Reminder FLEX, which notifies you of birthdays and anniversaries with countdown alerts, becomes incredibly useful.

This app lets you secure enough preparation time and prevents you from forgetting to send a message on the day.
Features of Reminder FLEX for Birthday & Anniversary Alerts
Countdown alerts that notify you in advance
You can receive countdown notifications such as “2 weeks to go: Lisa’s birthday,” “3 days to go,” or “Tomorrow,” starting from up to 2 weeks before the date.
By noticing early, you can prepare presents or surprises and make the other person happy.
3 notification styles: notification, alarm, and voice alert
The app can read aloud reminders like “Lisa’s birthday” at the time you set.
Because it speaks, you can notice the reminder even without looking at your phone.
You can also choose to be notified by alarm or standard notification.
Regular tasks can use black text, while birthdays can use gold text, making it easy to distinguish them at a glance.
By adding notes in the history—such as “I chose perfume as the present”—you can easily look it up the next year when you wonder, “What did I give last time?”
Birthday & Anniversary Reminder: FAQ
Q1. Can it notify me in advance every year?
Yes. If you set the repeat option to “Every year” and enable early alerts, the app will notify you automatically every year, up to 2 weeks in advance. Once you register the reminder, you can rely on the app to notify you early each year.
Q2. How many days in advance can the countdown start?
Up to 2 weeks ahead. Voice alerts can also be enabled.
→ Explanation of countdown early alerts
How to Use Birthday & Anniversary Reminders in Different Situations
Celebrate your family’s birthdays without forgetting
For partners or children, preparation is essential. If you set early alerts like “2 weeks to go, 1 week to go,” you can plan gifts and reservations without rushing.
Send birthday messages to friends every year
Even if you rarely meet your friends, you probably still want to send them birthday messages. If you use snooze alerts every 2 hours, the app keeps reminding you, preventing situations like “I noticed it in the morning but forgot by the afternoon.”
Remember your wedding anniversary every year
By receiving reminders several days in advance, you can confidently say “Our anniversary is coming up” each year, strengthening your partner’s trust.
Prepare smoothly for yearly events
School events, annual paperwork, or your parents’ health checkups can all be managed easily. With the history notes, you can quickly check what you did the previous year.
Summary: The easiest way to never forget important days
Birthdays and anniversaries are special days that come only once a year.
But relying solely on memory makes it easy to forget them.
With Reminder FLEX—featuring countdown early alerts, persistent day-of notifications, voice alerts, alarms, and detailed history notes—you can prepare confidently without regrets.
To protect and strengthen your important relationships, give it a try.
