01
Caffeine decay curve
See an estimate of how caffeine may taper off between now and bedtime.
Caffeine & sleep
Launching soon
PerklyEnjoy the perk. Protect the sleep.
See how caffeine is likely to decay through your day and find a last-call time that works with bedtime.
Get launch updatesApp Store release pending
Today
Last call
2:40 PM
for a 10:30 PM bedtime
Perkly
Launching soon
Timing over guilt
Perkly is built to help you place caffeine better, not tell you to give it up.
A full free tracker
The essential daily curve and drink logging work without a subscription.
Connected food history
Caffeine logged in Gutly or Crunchly can contribute to the same daily picture.
What it does
Deep enough to help. Focused enough to learn fast.
Perkly is a focused caffeine tracker built around one useful picture: the decay curve. Log a drink with one tap, see an estimate of what may remain later, and use a last-call alert to make timing more intentional.
02
One-tap drinks
Log coffee, tea, cola, matcha, and energy drinks without building a custom recipe.
03
Last-call alert
Choose a bedtime and get a practical reminder before another drink works against it.
04
What-if planning
Preview how a drink now could change the rest of the day before you log it.
Questions
Before you install.
Perkly provides estimates for general awareness. It does not measure blood caffeine or provide medical advice.
Is the curve a measurement of caffeine in my body?
No. It is an estimate based on logged drinks and a decay model. Individual metabolism varies substantially.
When can I download Perkly?
Perkly has been submitted to the App Store and will be linked here as soon as its public listing is available.
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