
The basics
mg, mL, units. What’s the difference?
Included in the app
A CLEARER PLACE TO START
Illustrated resources, a visual calculator, and saved setups. Together on your iPhone.
$9.99 once. No subscription.
No account needed. Resources available offline.


A LITTLE CLARITY, RIGHT HERE
mg and mcg describe mass. mL describes liquid volume. A U-100 syringe scale translates volume into markings; it does not tell you the mass without a concentration.
A preview from the included Resources library.
FAMILIAR QUESTIONS. THOUGHTFUL EXPLANATIONS.
Units, equipment, mixing and storage. Explore clear explanations, included in Dosii.

The basics
Included in the app

Storage
Included in the app

Your numbers
Included in the app

Your numbers
Included in the app

The basics
Included in the app
UNDERSTAND. CALCULATE. KEEP.
Enter values from your own instructions. See syringe units and mL together, then follow the arithmetic behind the result.


ONE APP. ONE PURCHASE.
Clear explanations. The calculator. Saved setups.
$9.99 once, with no subscription.
Calculations are stored locally on your device. No account or cloud sync.
Dosii explains terminology and calculates from the values you enter. It does not choose a dose or verify a product. Follow product-specific instructions and guidance from a qualified healthcare professional.