Best Bolus Apps

86+ iOS apps curated and reviewed

4.2 avg rating
19 free apps
Updated July 2026

With an average user rating of 4.2★, the bolus category is one of the App Store's strongest. Browse all 86+ apps we track, sorted so the most loved ones surface first.

Compare top Bolus Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1BolusCalcBolusCalcFree3.8★ (23)NoNoJun 2026
2Bolus GuideBolus GuideFree3.8★ (12)NoNoMay 2026
3BolusSmartBolusSmartFreeNoNoMay 2026
4Bolus CalculatorBolus CalculatorFree5.0★ (1)NoYesJul 2026
5Bolus: Anesthesia RecordBolus: Anesthesia RecordFreeYesNoJul 2026
6EnteraCalc BolusEnteraCalc BolusFreeNoNoMay 2026
7T1D1 MobileT1D1 MobileFree4.5★ (24)NoNoJul 2026
8Diabetes smartmanager incl. Basal-Bolus therapyDiabetes smartmanager incl. Basal-Bolus therapyFree2.0★ (1)NoYesMay 2026

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.

Bolus Guide#2

Bolus Guide by David Vincent

Strong Contender
🏥 Medical
3.8(12 ratings)
Free
Bolus Guide screenshot 1
Bolus Guide screenshot 2
Bolus Guide screenshot 3
Bolus Guide screenshot 4
Bolus Guide screenshot 5

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.

More Bolus apps to explore

4
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
5
Bolus: Anesthesia Record
Bolus: Anesthesia Record
Bolus: Anesthesia Record
by Pressor Systems LLC
Free
🏥 Medical
(0)
6
EnteraCalc Bolus
EnteraCalc Bolus
EnteraCalc Bolus
by Peter Weiss
Free
🏥 Medical
(0)
7
T1D1 Mobile
T1D1 Mobile
T1D1 Mobile
Type1 Insulin Calc FDA-Cleared
Free

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.

Insulin dose calculationGlucose trackingInsulin intake tracking
💪 Health & Fitness
(24)
free
8
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
9
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
(4)
freemium
10
BareBolus
BareBolus
BareBolus
by DiaBolus AS
Free
🔧 Utilities
(0)
11
Smart Bolus
Smart Bolus
Smart Bolus
Smart Insulin Dose Calculator
Free
💪 Health & Fitness
(0)
12
Smart Bolus Calculator
Smart Bolus Calculator
Smart Bolus Calculator
by Smart Bolus Calculator LLC
Free

This app assists individuals with diabetes in calculating insulin doses. It uses personalized settings like insulin-to-carbohydrate ratios and correction factors to determine accurate doses based on carbohydrate intake and current blood glucose levels.

Personalized insulin dose calculationInsulin-to-carbohydrate ratio inputCorrection factor input
💪 Health & Fitness
(2)
free
13
Oral Disorders
Oral Disorders
Oral Disorders
by Blue Tree Publishing, Inc.
$4.99
📚 Education
(0)
14
nudg | diabetes companion
nudg | diabetes companion
nudg | diabetes companion
nudg'n you along
Free

This app helps manage diabetes by integrating with Nightscout data. It offers real-time dashboards, intelligent calculators for insulin and nutrition, and comprehensive logging of treatments and health records. Premium features provide advanced analytics and personalized insights for better therapy management.

Real-time glucose dashboardIntelligent insulin calculatorsNutrition estimation
🏥 Medical
(0)
freemium
15
Arkadaşım Diyabet
Arkadaşım Diyabet
Arkadaşım Diyabet
Carbohydrate-Bolus Calculator
Free
🏥 Medical
(0)
16
CoCo Bubble Tea Global
CoCo Bubble Tea Global
CoCo Bubble Tea Global
Get Your Bubble Tea with CoCo
Free

Manage your franchise operations and customer interactions with this official app. Streamline order management, track engagement, and optimize daily tasks to boost sales and customer experience.

Online order managementCustomer interaction trackingDaily operations optimization
🍔 Food & Drink
(3)
free
17
MedBolus
MedBolus
MedBolus
by ulearn cursos e conteudos on-line LTDA
Free

This platform offers concise medical updates through short videos, podcasts, and PDF materials. It's designed for medical professionals and students seeking to stay current on various specialties and patient care.

Short video updatesPodcast lecturesPDF learning materials
📚 Education
(1)
free
18
Contagem de Carboidratos - SBD
Contagem de Carboidratos - SBD
Contagem de Carboidratos - SBD
APP Oficial SBD - Versão 3.0
Free

This app helps manage calorie and carbohydrate intake for individuals with diabetes. It allows users to track blood glucose levels and provides updated food tables for personalized meal planning. Features include bolus calculation and insulin dose recording.

Carbohydrate countingCalorie intake managementBlood glucose tracking
🏥 Medical
(0)
free
19
XBolus
XBolus
XBolus
by 娟 陈
Free
🔧 Utilities
(0)
20
Thinksulin
Thinksulin
Thinksulin
by Agency for Clinical Innovation
Free
🏥 Medical
(0)

FAQ about Bolus

What are the best bolus apps for iPhone?
BolusCalc tops our bolus apps ranking as of July 2026, with a 3.8-star average from 23 App Store ratings, and it's free to download.
Yes — 19 of the top bolus apps we rank are free to download, including BolusCalc and Bolus Guide.
BolusCalc has no ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 86+ bolus apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
BolusCalc is designed to help users calculate insulin doses. It offers features for simple bolus calculations, generating insulin sliding scales, and adjusting doses based on continuous glucose monitoring (CGMS) data.
BolusCalc supports calculations in both Canadian mmol/L and U.S. mg/dL blood glucose units, making it adaptable for users in different regions.

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