Can I Coffee?

4.5
22 reviews
1K+
Downloads
Content rating
Everyone
Screenshot image
Screenshot image
Screenshot image

About this app

Your body works on a rhythm, and is guided by what is known as your circadian clock. At a certain point in this rhythm; cortisol is produced - a hormone that makes you feel awake and alert. If you drink coffee at the same time that your cortisol levels are peaking, the effects of caffeine will be greatly diminished since you're experiencing a natural jolt.

By consuming caffeine when it is not needed, your body will build a faster tolerance to it, and the buzz you get from it will greatly diminish.

http://en.ilovecoffee.jp/

Can I drink coffee yet? Calculate the best time to drink your coffee or caffeine and set a reminder for your coffee time.

App was a direct inspiration from keikun17's Can I Coffee? http://keikun17.github.io/canicoffee/ - page based from http://en.ilovecoffee.jp/posts/view/110.

Launcher was made from http://romannurik.github.io/AndroidAssetStudio/icons-launcher.html

Source available at https://github.com/omatt/canicoffee

Icon sources:
https://github.com/google/material-design-icons
http://iconmonstr.com/
Updated on
Oct 4, 2018

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
No data collected
Learn more about how developers declare collection

Ratings and reviews

4.5
21 reviews
Revenant Revvington
February 22, 2026
I love this app, and use it almost every day – I just wish the time selector wasn't locked into 12-hour time.
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Arda
April 7, 2021
Could you make it so that our wake up time doesn't disappear after we close and reopen the app? It would be very usefull over a long period of time using the app.
2 people found this review helpful
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KN Lawrence
October 29, 2020
I heard the US military was researching developing a similar app. Hopefully they simply fund development of Apple / Windows versions of this one. This app is one of my favorites.
2 people found this review helpful
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What’s new

Added Privacy Policy.

App support

About the developer
Omar Matthew Reyes
hello@omarmatthew.me
232 Sagana Condo 1 New Era, Quezon City 1107 Metro Manila Philippines

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