Reminder Flex - Alarm & Notify

Celestial Brain

Contains adsIn-app purchases

About this app

Reminder FLEX - 3-Way Reminder Alarm & Notification App
Keep every schedule, task, and event on track with reminder notification, alarm and text-to-speech.

This reminder app reminds you of your events & todo in advance and repeatedly.

- Prevent missed meds with nagging snooze

- Manage tasks, schedule and work shifts

- Countdown to birthdays, anniversaries, exams, flights, reservations

- Manage returns, subscription renewals, expiry dates

- Water plants, give fertilizer—no more forgetting

Friendly and easy reminder app for beginners and praised by users with ADHD

Core features

3-WAY DELIVERY

1. Reminder alarm: custom melody & volume

2. Reminder notification: push alerts

3. Speaking reminder: Text-to-speech that literally tells you what to do

SNOOZE (nag)
Repeat every 5 min to 1 hour until you act. Perfect for medicines, breaks, and nag-style follow-ups.

REPEAT
Daily, every X days, weekdays, weekly, bi-weekly, monthly (date or 1st/2nd/3rd/4th selected day), yearly. Great for bills, birthdays, routines, and shift work.

Notify me in advance
Advance notification lets you know "5 days to go: Lisa's birthday". Choose 2 weeks to 5 minutes before. You can use it as a countdown as well.

Combinable options (snooze + repeat + advance)
You can repeatedly alarm as you like, such as "every hour x 6 times and repeat it daily".

FLEXIBLE CHECKLIST
Mark ✔ done to auto-move to the next repeat date, or multi-select tasks and move them to your next shift with ease.

HISTORY & NOTES
Done items stay in the log. Add notes like "gave 5 ml fertilizer" so you can check later.

Auto correct end of month repeating
If you set a reminder on Jan 31 with repeat monthly, next time it will ring on Feb 28, but another time it will ring on Mar 31 properly.

MORE POWERFUL TOOLS


- Independent alarm sound, volume, and duration per reminder

- Stop alarm with volume buttons when device is locked (Can be disabled)

- Silent-mode override for alarms, with "mute during DND" option

- Vibrate plus sound or sound-only settings

- Speak volume control, options for headset-only speak, speak off in silent mode

- Auto-dictionary and voice input for super-fast entry

- Duplicate existing reminders to create new ones in seconds

- Auto time-zone and summer-time correction for travelers

- Manual or scheduled backup to device or Google Drive

- 2×1 resizable widget shows chosen tasks on the home screen

- Color categories and search (7 title and memo colors)

- Public Holiday reminders with optional "skip alarm on holiday"

- Dark mode for eye-friendly night use

AD-SAFE
Video ads play only inside the optional mini-game page, with clear sound warning—no sudden audio in quiet places.

Disclaimers
Reminder FLEX is a general-purpose reminder app. It is not a medical device and does not replace professional advice. For health-related use, always follow guidance from a qualified expert. Developer is not liable for any loss caused by missed alarms or notifications.

FAQ
https://celestialbrain.com/en/reminder-flex-qa/

Ratings and reviews

I've needed something just like this; a reminder that I CAN'T ignore! I love the choice of alarm, notification, or text to speech. Sometimes, if a reminder is REALLY important, I set it with EACH reminder, so I CAN'T ignore it! The only thing I really wish it had was choice of note colors so that I could see it ease more easily.

I've never forgotten things with this app. Flexible repeat is really helpful. Also text-to-speech lets me know what to do is really handy like Alexa. I can take notes after things done, so later I can look back what did I do very easily. This is super helpful to organize myself!

I wish I could like this, but having to override the battery optimizer makes it a fail. First, my phone doesn't want to do so. Second, I'm concerned about having to do so. I found a similar reminder which doesn't require me to force this. In theory, I like the app, which is why I didn't just give it only one star, which I would have otherwise done since it ended up a complete failed for me. It just needs some work to make it useable.

What’s new

- Fixed a bug where turning off the "Stop alarm with volume buttons" switch would also turn off the "Vibrate with alarm sound" switch.