Best Bolus Apps

69+ iOS apps curated and reviewed

3.7 avg rating
20 free apps
Updated June 2026

With an average user rating of 3.7★, the bolus category is one of the App Store's strongest. Browse all 69+ apps we track, sorted so the most loved ones surface first.

Top Picks for Bolus

BolusCalc#1

BolusCalc by British Columbia's Children's Hospital

Insulin Bolus Calculator
Editor's Choice
🏥 Medical
3.8(23 ratings)
Free
BolusCalc screenshot 1
BolusCalc screenshot 2
BolusCalc screenshot 3
BolusCalc screenshot 4
BolusCalc screenshot 5
BolusCalc screenshot 6

This app assists with calculating insulin doses for individuals managing diabetes. It offers features for simple bolus calculations, insulin sliding scales, and adjustments based on continuous glucose monitoring data. Supports both Canadian and U.S. blood glucose units.

T1D1 Mobile#3

T1D1 Mobile by T1D1 LLC

Type1 Insulin Calc FDA-Cleared
Worth Considering
💪 Health & Fitness
4.5(24 ratings)
Free
T1D1 Mobile screenshot 1
T1D1 Mobile screenshot 2
T1D1 Mobile screenshot 3
T1D1 Mobile screenshot 4
T1D1 Mobile screenshot 5

This app helps individuals with Type 1 Diabetes calculate insulin doses, track glucose, insulin, and carb intake. It's designed for those using multiple daily injections and newly diagnosed patients, offering essential tools for daily management. The app is FDA-cleared and free to use.

More Bolus apps to explore

4
Bolus Guide
Bolus Guide
Bolus Guide
by David Vincent
Free

This app helps individuals with diabetes calculate precise insulin doses for meals and corrections. It uses user-inputted data like carb ratios and current glucose levels to provide exact and rounded insulin amounts, aiming to improve glycemic control and quality of life.

Insulin dose calculationPre-meal bolus calculationCorrection dose calculation
🏥 Medical
(12)
free
5
Bolus Calculator
Bolus Calculator
Bolus Calculator
Your Bolus under control!
Free

Easily calculate meal boluses by counting carbs and selecting food items. Save meals as templates and access a database of tens of thousands of products with updated carbohydrate content. Synchronize data across devices for shared management.

Carbohydrate countingMeal bolus calculationFood database with EAN scan
💪 Health & Fitness
(1)
free with in-app purchases
6
InsuCalc: Carbs, Fats & Bolus
InsuCalc: Carbs, Fats & Bolus
InsuCalc: Carbs, Fats & Bolus
Calculate your insulin bolus
Free

This app helps individuals with type 1 diabetes calculate split-bolus insulin doses for complex meals containing fats and proteins. It converts meal macros into equivalent carb portions and suggests initial and extended bolus percentages, along with absorption time. An AI feature can analyze meal photos to detect macros automatically.

Split-bolus dosing for complex mealsCalculates initial and extended bolus percentagesEstimates total absorption time
💪 Health & Fitness
(2)
freemium
7
Diabetes smartmanager incl. Basal-Bolus therapy
Diabetes smartmanager incl. Basal-Bolus therapy
Diabetes smartmanager incl. Basal-Bolus therapy
by Atelier fuer Mediengestaltung
Free

Manage your diabetes by tracking blood sugar, bread units, and bolus insulin. Features include dose calculation, reminders, meal labeling, and visual data representation. Export your data for your doctor.

Calculates bolus insulin doseRecords blood sugar and bread unitsReminders to check blood values
💪 Health & Fitness
(1)
free with in-app purchases
8
BareBolus
BareBolus
BareBolus
by DiaBolus AS
Free
🔧 Utilities
(0)
9
EnteraCalc Bolus
EnteraCalc Bolus
EnteraCalc Bolus
by Peter Weiss
Free
🏥 Medical
(0)
10
Smart Bolus
Smart Bolus
Smart Bolus
Smart Insulin Dose Calculator
Free
💪 Health & Fitness
(0)
11
Bolus: Anesthesia Record
Bolus: Anesthesia Record
Bolus: Anesthesia Record
by Pressor Systems LLC
Free
🏥 Medical
(0)
12
Smart Bolus Calculator
Smart Bolus Calculator
Smart Bolus Calculator
by Smart Bolus Calculator LLC
Free
💪 Health & Fitness
(2)
13
GluHealth: Blood Sugar Test AI
GluHealth: Blood Sugar Test AI
GluHealth: Blood Sugar Test AI
HRV, Stress & Health Monitor
Free

Track your glucose, meals, and overall wellness with this comprehensive health monitoring tool. Seamlessly sync data from Apple Health and view key metrics like insulin and carbs. Get daily, weekly, and monthly reports to share with your doctor.

Glucose and meal trackingApple Health syncInsulin and carb monitoring
💪 Health & Fitness
(4.7K)
free with in-app purchases
14
Dual Bolus
Dual Bolus
Dual Bolus
by Jose Maria Sabater
Free

Calculates dual bolus doses based on carbohydrate intake and fat-protein units. Designed for individuals managing their insulin needs.

Dual bolus calculationCarbohydrate inputFat-protein unit input
🏥 Medical
(2)
free
15
Tandem t:slim Mobile App
Tandem t:slim Mobile App
Tandem t:slim Mobile App
t:slim X2 insulin pump
Free

This app acts as a smartphone companion for a specific insulin pump, allowing users to deliver insulin doses and view pump data remotely. It provides discreet access to essential information and notifications, enhancing convenience for pump users.

Deliver bolus from smartphoneDiscreet secondary pump displayView pump data and notifications
🏥 Medical
(36)
free
16
Tandem Mobi® mobile app
Tandem Mobi® mobile app
Tandem Mobi® mobile app
Tandem Mobi System
Free

This app controls a small, durable automated insulin delivery system. It offers convenience and discretion, allowing users to manage their diabetes directly from a compatible iPhone. Prescription required for use.

Automated insulin delivery controlSmall and durable systemiPhone controllable
🏥 Medical
(144)
free
17
XBolus
XBolus
XBolus
by 娟 陈
Free
🔧 Utilities
(0)
18
Diabetes:M
Diabetes:M
Diabetes:M
Manage Diabetes Like a Pro!
Free

This app helps users manage diabetes by tracking blood glucose, food intake, and exercise. It provides detailed reports, charts, and statistics, and can analyze data from various glucometers and insulin pumps. An Apple Watch app and Health app integration are also available.

Blood glucose trackingNutrition databaseExercise logging
🏥 Medical
(988)
freemium
19
Carb Master for Diabetes T1
Carb Master for Diabetes T1
Carb Master for Diabetes T1
Calculate mealtime bolus
Free

This app assists individuals with Type 1 diabetes in calculating mealtime insulin dosages. It helps determine total meal carbs by weighing food or searching a nutritional database, then calculates the correct insulin units based on personal ratios and correction factors. It also integrates with Apple Health to track meal data.

Mealtime insulin dosage calculationCarb counting via food weighingUSDA nutritional database search
💪 Health & Fitness
(3)
free
20
Boiron Medicine Finder
Boiron Medicine Finder
Boiron Medicine Finder
by Boiron, Inc
Free

Easily discover homeopathic medicines to alleviate your symptoms. Get recommendations, dosage information, and lifestyle tips in just a few clicks. Find nearby retailers and access coupons.

Symptom-based medicine recommendationsDosage and purpose informationLifestyle tips
🏥 Medical
(359)
free

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