Optimem: Smart Flashcards

4.9
49 reviews
Content rating
Everyone
5K+
Downloads
Content rating
Everyone
Learn more
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About this app

Optimem is a mobile app to help you learn and remember things faster. It's built around scientifically validated techniques like spaced repetition, active recall, and gamification.

You can study languages, music, science, history, math, or anything else you'd like. You can customize cards and share packs with the community.
Updated on
May 6, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
App activity and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.9
46 reviews
Lin
March 3, 2025
Great app, it's been super useful and the pre-made packs I've tried are excellent. Seems like everything in this app is accessible for free, I haven't found any paid features. Thank you! Only issue is that I have to start the app twice every time I want to use it. The first time I open it, none of the buttons work and I can't select anything or scroll. Works perfectly on the second try every time, so not a big deal, just annoying. Otherwise, it's been perfect for achieving my goals.
2 people found this review helpful
Did you find this helpful?
Organic Software LLC
April 19, 2026
Hi Lin – thank you so much for your feedback. The launch bug has been fixed, sorry about that. Let me know if you have further feedback @ optimem.org/discord
Andrew Rose
April 19, 2026
They got rid of the constant vibration, but now there's no way to turn off the double ding or double tapping EVERY SINGLE TIME you respond! WHY? Why does there have to be noise, or vibration? And you have to turn sound ON, in order to activate all the toggles to turn the sounds OFF 🤯😤 Why??? Dim, or disable, or hide all the sound toggles if they can't be used. Don't let the user tap, and tap, and tap, and wonder why they aren't responding! 🤮
Did you find this helpful?
Organic Software LLC
April 19, 2026
Hey Andrew, sorry about that. It looks like you're on an older version of the app which had aggressive vibration and a bug with the toggle. Updating will fix both. Optimem is a free, solo developer project – if you have more feedback reach out at https://optimem.org/discord and I'll take a look.
MrGatlampa
April 19, 2026
The app is very nice for memorizing stuff, however it does have problems. It sometimes doesn't launch correctly, notifications are only sent once you open the app, making the reminders useless. Some features are confusing and not explained. Scrolling through a list of words somehow lags insanely much?? I'm not sute bit I think that the same items behave as if they are listed twice as two seperate items, one from language1 -> language 2, and one from language2 -> language1. Fix to make app great!
Did you find this helpful?
Organic Software LLC
April 19, 2026
Hey MrGatlampa – thank you for your feedback. I have some good news – these issues are now fixed in the latest version! The app no longer freezes on launch, notifications are sent properly, and lag is fixed! Some cards are bi-directional – this is intended, but can be disabled Feel free to join Discord to discuss more: optimem.org/discord

What’s new

Added learning customization, bug fixes, and polish.
Content rating
Everyone
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App support

About the developer
Organic Software LLC
support@orgsoft.org
3400 Cottage Way Ste G2 Sacramento, CA 95825 United States
+1 802-528-1337

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