Contact Mopsical

Mopsical is a small, independent, ad-supported site — there is no support desk standing by, but a real person reads everything that comes in to support@mopsical.com.

A few things this address is genuinely useful for: a calculator that gave you a result you think is wrong (say which tool — the Focus Session & Pomodoro Planner, Sleep Debt Calculator, Caffeine Timing & Half-Life Calculator, Deep Work Time-Budget Planner, Habit Consistency Tracker, or Ultradian Energy-Cycle Planner — and the numbers you entered); a tool you wish existed on the site; an out-of-date detail or broken link in the blog, learn section, or the museum; or a bug in how a page looks or behaves on your device.

There’s no fixed response time to promise, and no ticket number or live chat — email is read and handled as it comes in. If your question is really about your own health — how much sleep you need, whether caffeine is affecting you, or a persistent focus or sleep problem — a doctor will give you a more reliable answer than this site can: Mopsical’s tools produce general estimates, not personal medical advice, and the site isn’t affiliated with any app, brand, or programme.

Before writing in about a tool result, it’s worth double-checking the numbers you entered — a session length, a bedtime, a caffeine dose, or a day count is the most common source of a surprising answer. If it still looks off after that, that’s exactly the kind of message worth sending.