Smart Bolus

Smart Bolus is a smart insulin bolus calculator designed for people with diabetes who use multiple daily injections (MDI) or insulin pumps.

Calculate your meal-time insulin dose in seconds based on your personal parameters:

• Carb Ratio — how many grams of carbs covered by one unit of insulin
• Insulin Sensitivity Factor (ISF) — how much one unit lowers your blood glucose
• Target Glucose — your desired blood glucose level

Key Features

• Time-based profiles — Set different ratios for different times of day (morning, afternoon, evening, night). The app automatically selects the correct segment based on your meal time.
• Multiple profiles — Create separate profiles for each family member. Ideal for parents managing more than one child with diabetes.
• Dual glucose units — Supports both mg/dL and mmol/L with automatic conversion.
• Calculation breakdown — See the carb dose, correction dose, and total suggested dose clearly.
• Insulin on board (IOB) — Record the dose you actually took and the app tracks how much is still active, subtracting it from your next suggestion to help avoid stacking.
• Carbs on board (COB) — Insulin matched by unabsorbed carbs from earlier meals no longer reduces your new meal's dose.
• Insulin types & adjustable duration — Choose your insulin by active ingredient (lispro, aspart, glulisine, Fiasp, Lyumjev) and fine-tune how long it works for you (5–7 hours).
• History your way — Record doses explicitly with one tap, review the last 7 days, and delete a single record or all of them.
• Privacy first — All data stays on your device. No accounts, no cloud, no tracking.

How It Works

1. Create your profile with your insulin parameters
2. Set time segments for different periods of the day
3. Enter your carbs and current glucose level
4. Get your suggested bolus dose instantly

Disclaimer: Smart Bolus is a calculation aid only. Always consult your diabetes care team before making treatment decisions.