Best Glucose And Insulin Calculator Apps

243+ iOS apps curated and reviewed

4.2 avg rating
18 free apps
Updated September 2026

Every iPhone needs a few good glucose and insulin calculator apps. We benchmark 243+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Glucose And Insulin Calculator Apps (September 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Glucose and Insulin CalculatorGlucose and Insulin CalculatorFreeNoYesJun 2026
2Glucose | Blood Sugar TrackerGlucose | Blood Sugar TrackerFree4.6★ (28K)NoYesSep 2026
3Glucose Companion ProGlucose Companion Pro$1.994.6★ (791)NoYesSep 2026
4OneTouch Reveal® appOneTouch Reveal® appFree4.8★ (161K)NoNoSep 2026
5A1C Calculator Blood GlucoseA1C Calculator Blood GlucoseFree4.1★ (116)YesYesAug 2026
6Sugar Hub: Glucose & InsulinSugar Hub: Glucose & InsulinFree4.1★ (9)NoYesAug 2026
7BolusCalcBolusCalcFree3.8★ (23)NoNoAug 2026
8T1D1 MobileT1D1 MobileFree4.5★ (24)NoNoSep 2026

Top Picks for Glucose And Insulin Calculator

Glucose | Blood Sugar Tracker#2

Glucose | Blood Sugar Tracker by App Sub 1 LLC

Insulin, Carbs & Diabetes Log
Strong Contender
🏥 Medical
4.6😞(28K ratings)
FreeIn-App Purchases
#24in Medical
Glucose | Blood Sugar Tracker screenshot 1
Glucose | Blood Sugar Tracker screenshot 2
Glucose | Blood Sugar Tracker screenshot 3
Glucose | Blood Sugar Tracker screenshot 4
Glucose | Blood Sugar Tracker screenshot 5
Glucose | Blood Sugar Tracker screenshot 6

This app helps users track blood sugar, weight, blood pressure, and medications to manage diabetes. It offers features like data logging, trend identification, customizable reminders, and report generation for healthcare professionals. An estimated A1C calculator is also included.

What We Love

  • 👍 Easy to use
  • 🚀 Simple and straightforward
  • 💡 Estimated A1C feature
  • 👍 Graphs and data visualization

Room to Improve

  • 🔒 Subscription model to access full features
  • 🐛 Recent update removed decimal point for glucose entries
  • 🔒 Locked features behind paywall
Glucose Companion Pro#3

Glucose Companion Pro by 倩 赵

Blood Sugar & Weight Logger
Worth Considering
🏥 Medical
4.6😊(791 ratings)
$1.99In-App Purchases
Glucose Companion Pro screenshot 1
Glucose Companion Pro screenshot 2
Glucose Companion Pro screenshot 3
Glucose Companion Pro screenshot 4
Glucose Companion Pro screenshot 5

This app helps you monitor your blood sugar and weight with easy logging, charting, and analysis. It allows you to add notes, set reminders, and export your data in various formats. Protect your information with a passcode and sync across devices.

What We Love

  • 👍 Easy to use
  • 📊 Helpful reports and graphs
  • 💾 Backup and export functionality
  • 🚀 Quick and efficient

Room to Improve

  • 🐛 Occasional crashes or bugs
  • 🔄 Sync issues between devices
  • 📈 Limited customization of charts and graphs

More Glucose And Insulin Calculator apps to explore

4
OneTouch Reveal® app
OneTouch Reveal® app
OneTouch Reveal® app
Your diabetes management app
Free

This app helps individuals manage their diabetes by tracking blood glucose readings, food intake, insulin, and activity. It visualizes data to identify patterns, offers personalized insights and reminders, and allows users to share progress with their care team.

Blood glucose pattern identificationPersonalized reminders and guidanceDiabetes logbook with color-coded readings
🏥 Medical
(161K)
free with in-app purchases
5
A1C Calculator Blood Glucose
A1C Calculator Blood Glucose
A1C Calculator Blood Glucose
Calculate & Track hbA1C
Free

Calculate and track your A1C levels using your average blood glucose readings. Store results with dates, view historical data in a logbook, and visualize trends with charts. Designed for accessibility with screen reader support and multiple language options.

A1C calculation from average blood glucoseStore results with datesLogbook for historical data
💪 Health & Fitness
(116)
free with in-app purchases
6
Sugar Hub: Glucose & Insulin
Sugar Hub: Glucose & Insulin
Sugar Hub: Glucose & Insulin
Blood Sugar & Diabetes Tracker
Free

Easily log, track, and organize blood sugar, insulin, and A1C data. Visualize trends with charts and export reports for your healthcare provider. This intuitive tool simplifies diabetes management.

Log blood sugar readings with tagsTrack basal and bolus insulin dosesMonitor A1C levels and trends
🏥 Medical
(9)
free with in-app purchases
7
BolusCalc
BolusCalc
BolusCalc
Insulin Bolus Calculator
Free

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.

Simple insulin bolus calculationInsulin sliding scale generationCorrection for CGMS arrows
🏥 Medical
(23)
free
8
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
9
GloGlo: Glucose Companion
GloGlo: Glucose Companion
GloGlo: Glucose Companion
AI Food & Glucose Tracker
Free

This app helps you monitor your glucose levels by connecting to your CGM data. Understand personal trends, track your progress with a "GloGlo Score," and build daily habits for better glucose awareness. It's designed to make your glucose data easy to follow.

View recent time in rangeTrack GloGlo Score (7 days)Review glucose patterns (highs, lows, overnight)
💪 Health & Fitness
(16)
free
10
Insulin Calculator
Insulin Calculator
Insulin Calculator
Calcula doses de insulina
Free

This app helps individuals with type 1 diabetes manage their blood sugar. It calculates insulin doses based on carbohydrates, proteins, and fats, and suggests optimal timing for subsequent doses to maintain stable glucose levels.

Calculates insulin dosesConsiders carbs, protein, and fatSuggests dose splitting
🏥 Medical
(7)
free with in-app purchases
11
Glucose Buddy Diabetes Tracker
Glucose Buddy Diabetes Tracker
Glucose Buddy Diabetes Tracker
Log Blood Sugar, Carbs, & Meds
Free

This app helps individuals manage their diabetes by tracking blood sugar, medication, and carb intake. It offers educational content, meal planning assistance, and data export for healthcare providers. Premium features provide advanced analytics and integrations.

Track blood sugar, medication, and A1CLog weight and carb intakeExtensive food database for meal logging
🏥 Medical
(25K)
freemium
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
Glucose Tracker - Blood Sugar
Glucose Tracker - Blood Sugar
Glucose Tracker - Blood Sugar
Diabetes, Carbs, A1C and more
Free

Easily log and analyze your glucose levels, A1C, blood pressure, and medications. This app provides detailed reports and charts to help manage diabetes and other health conditions. Manually enter your readings to gain insights into your overall health.

Track blood sugar, blood pressure, and moreLog unlimited entries with notesDashboard for at-a-glance stats
🏥 Medical
(88)
freemium
14
CarbTrack: Diabetes Calculator
CarbTrack: Diabetes Calculator
CarbTrack: Diabetes Calculator
Track Carbs, Calc Insulin
Free
💪 Health & Fitness
(0)
15
Glucose Companion
Glucose Companion
Glucose Companion
Blood Sugar and Weight Tracker
Free

Monitor your blood sugar and weight with this comprehensive tracker. Easily log readings, add notes, and visualize trends with charts. The app helps you understand your glucose levels, calculate insulin needs, and share data with your doctor for better diabetes management.

Log blood sugar and weightAdd notes to readingsTrack with charts
🏥 Medical
(473)
ad-supported
16
AKUH Insulin Calculator
AKUH Insulin Calculator
AKUH Insulin Calculator
by Aga Khan Hospital and Medical College Foundation
Free

This tool assists medical professionals in adjusting insulin infusion rates. It calculates the necessary adjustments based on a patient's current and previous blood glucose levels, along with their current infusion rate.

Calculate insulin infusion ratesInput current blood glucoseInput prior blood glucose
💪 Health & Fitness
(3)
free
17
Diabetes Personal Calculator
Diabetes Personal Calculator
Diabetes Personal Calculator
by iTenuto Soft
$0.99

This app helps Type 1 diabetics calculate pre-meal insulin doses. It features a carbohydrate database, allows for personalized food entries, and tracks daily glucose readings and insulin doses.

Insulin dose calculationCarbohydrate databaseFood and meal logging
💪 Health & Fitness
(6)
paid
18
Jade Insulin Dose Calc
Jade Insulin Dose Calc
Jade Insulin Dose Calc
Upgrade Your Diabetes
Free

This app helps manage diabetes by calculating insulin doses and predicting blood glucose levels. It integrates with various health devices and offers detailed logging and reporting for better diabetes control.

Insulin dose calculatorBlood glucose predictionIntegrates with Apple Health
🏥 Medical
(72)
free with in-app purchases
19
mySugr - Diabetes Tracker Log
mySugr - Diabetes Tracker Log
mySugr - Diabetes Tracker Log
Master Your Blood Sugar Level!
Free

This app centralizes all your diabetes-related data, including blood sugar readings, medication, and diet. It offers personalized tracking, automatic logging from connected devices, and insightful reports. Advanced features provide real-time glucose monitoring and insulin dose recommendations.

Personalized HomescreenAutomatic Blood Sugar LoggingReal-time Glucose Values
🏥 Medical
(33K)
free with in-app purchases
20
KomaDose AI Insulin Calculator
KomaDose AI Insulin Calculator
KomaDose AI Insulin Calculator
AI Enhanced Insulin Calculator
Free

This app assists individuals using fast-acting mealtime insulin by calculating precise insulin doses based on blood glucose and carbohydrate intake. It also features AI-powered meal photo analysis for carb estimation, dose history tracking, and management of medical contacts and appointments.

AI-powered insulin dose calculationAI carb counting from meal photosDose history and calendar logging
🏥 Medical
(1)
ad-supported

FAQ about Glucose And Insulin Calculator

Are there free glucose and insulin calculator apps for iPhone?
Yes — 18 of the top glucose and insulin calculator apps we rank are free to download, including Glucose and Insulin Calculator and Glucose | Blood Sugar Tracker.
Glucose and Insulin Calculator has no ads and offers in-app purchases, according to its App Store listing as of September 2026.
We track 243+ glucose and insulin calculator apps on the iOS App Store as of September 2026, ranked by rating, recency, and analysis of real user reviews.