InsuCalc: Carbs, Fats & Bolus
Split bolus for T1 diabetes
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Calculate the split between initial + extended bolus for high-fat meals. Search foods by name or scan barcodes. Informational, not medical.
Calculate your bolus with the precision your type 1 diabetes deserves.
InsuCalc converts carbs, fats, and proteins into equivalent exchanges and gives you the exact split between initial bolus and extended bolus, plus the total absorption time. Especially designed for high-fat meals (pizza, burgers, aged cheese) where a single bolus falls short.
THE METHOD
InsuCalc is based on the dual-bolus method developed by the Pediatric Diabetes Service of the Hospital General Universitario de Alicante. It is not a medical device: it is an informational calculator that respects your clinical judgment and your medical team's.
FOR COMPLEX MEALS
A pizza is not just carbohydrates. Fat and protein delay absorption and require splitting the bolus over time. InsuCalc automatically calculates:
- Equivalent carbohydrate exchanges
- Percentage of the initial bolus (when you start eating)
- Percentage of the extended bolus
- Total absorption time
FOOD SEARCH AND BARCODE SCANNER (Premium)
Search foods by name or scan the barcode of any packaged product. Nutritional values fill in automatically in the calculator — no need to type everything by hand.
DESIGNED FOR T1D
- Customizable food categories
- History of saved meals
- Light and dark mode
- VoiceOver and Dynamic Type
- Sign in with Apple
PRIVACY
Your data is yours. Authentication is with Apple (no emails or passwords to remember).
IMPORTANT NOTICE
InsuCalc is an informational tool. It does NOT calculate or display insulin units. It does NOT replace the judgment of your medical team, diabetes education, or approved medical devices. Decisions about your treatment should always be made with your endocrinologist or diabetes educator. If you have any questions, consult a healthcare professional.
InsuCalc was born from real experience with type 1 diabetes and is designed for people who already know how to count exchanges and want to fine-tune the bolus split for complex meals.
Download InsuCalc and make dual-bolus the easy part of your day.
Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
Improvements in this version:
- Improved food search: now finds products with multiple words better
- Visual fixes in the meals list
- Performance improvements and other minor fixes
Thanks for using InsuCalc.
The developer, Daniel Fernandez Garcia, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- User Content
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Daniel Fernandez Garcia
- Size
- 32.2 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 18.4 or later.
- iPhone
Requires iOS 18.4 or later. - iPad
Requires iPadOS 18.4 or later. - Mac
Requires macOS 15.4 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.4 or later.
- iPhone
- Languages
English and 7 more
- English, French, German, Italian, Japanese, Portuguese, Simplified Chinese, Spanish
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Unlock unlimited saving $1.99
- Premium Yearly $29.99
- Premium Monthly $2.99
- Copyright
- © 2026 InsuCalc. All rights reserved.