DoseDrill

DoseDrill Premium

Practice until dosage math is second nature.

Keep the free lessons, calculators, and daily set — or go all in: unlimited practice, a timed exam, per-type accuracy, and weak-area drilling, all offline in your browser.

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Unlock everything

  • Unlimited generated practice across all eight dosage-calculation types
  • Exam mode — a timed 25-question mixed test that mirrors the real thing
  • Per-type accuracy tracking so you see exactly where you are strong or weak
  • Weak-area drilling that auto-focuses on the problem types you miss
  • Every problem shows a full step-by-step dimensional-analysis solution

Premium plans are launching soon. In the meantime, the free tier already covers every lesson, formula, conversion table, all three calculators, the worked-example library, and a fresh 10-problem set each day.

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Good to know

Questions

What stays free?

Every explainer lesson, formula reference, and conversion table, all three calculators (drip rate, dose-by-weight, unit converter), the full library of worked examples, and a fresh 10-problem set each day — free forever, no account needed.

What does Premium add?

Unlimited fresh practice on any type, a timed 25-question exam that mirrors the real dosage-calculation test, per-type accuracy tracking, and weak-area drilling that steers you to the types you miss most.

Are the practice problems reliable?

Every problem is generated deterministically and its answer is computed by the same math core, which is unit-tested against hand-verified answers for all eight types. That said, DoseDrill is a study tool only — never use it for real medication administration.

How is my access stored?

Purchases are handled by RevenueCat and Stripe. An anonymous purchase id is kept in this browser so DoseDrill recognises your Premium on this device. Keep your receipt email for recovery.

I already subscribed on another browser or device — how do I get Premium here?

Head to Restore access and paste the access code shown on this Premium page (or from your receipt). Premium moves to this browser instantly.

Can I cancel?

Yes. Subscriptions renew automatically and can be cancelled anytime from the link in your receipt email. Lifetime is a one-time payment.

Lost your access code?

Your code is shown on this page whenever you're subscribed here, and it's included in your purchase receipt email. If you can't find it, reply to your receipt email from the address you paid with — your subscription is tied to it and access can be recovered from there.