Inaccurate for fast metabolism
I would appreciate an option where I could change the duration of the effect.

Visualize your ADHD medication's effects with an estimated timeline, showing how it builds up, peaks, and wears off. Track caffeine intake alongside medication to understand its impact on sleep. Get personalized insights based on your metabolism and avoid accidental double doses.
1.7.0
May 23, 2026
Multi-dose presets: configure "3×5mg" as one chip, log your full dose in one tap. Upcoming reminders timeline: see every scheduled alert on your dashboard with live countdowns. Dismiss or snooze right from the timeline. Biphasic peak fix: hero card now shows your next upcoming peak, not the distant global peak. Ritalin LA, Medikinet XL, Equasym XL, and Focalin XR users will see accurate "peak in ~Xmin" predictions.
MoreFocusCurve is a health and fitness app designed to help individuals with ADHD visualize the estimated timeline of their stimulant medication and caffeine intake. It models how these substances build up, peak, and wear off throughout the day, offering personalized insights.
FocusCurve uses established modeling techniques to visualize the estimated activity of methylphenidate or amphetamine over time. It accounts for different release mechanisms of various formulations like Ritalin IR, Concerta, and Adderall XR.
Yes, FocusCurve is designed to model caffeine alongside stimulant medication on the same timeline. This helps users understand how their caffeine consumption might affect their sleep window, especially on days they take medication.
No, FocusCurve does not contain advertisements. The app is a one-time purchase with all features included from day one, ensuring an ad-free experience.
FocusCurve personalizes its estimates through a quick onboarding process that considers your body weight, metabolism speed, hormonal factors, and caffeine sensitivity. You can also manually fine-tune these parameters.
Yes, all data within FocusCurve stays on your device. There is no cloud storage, no accounts, and no analytics. Crash reports are anonymous and do not contain health data, ensuring your privacy.
FocusCurve is available for a one-time purchase of $3.99. There are no subscriptions, premium tiers, or feature gating, making all functionalities accessible immediately.
FocusCurve is currently supported on iPhone and iPod devices. It is designed for users who want to manage their medication and caffeine intake effectively on Apple mobile devices.