Comparison

Glucose | Blood Sugar Tracker vs Libre by Abbott

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Glucose | Blood Sugar Tracker

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.

Highlights
  • Log blood sugar and other health data
  • Identify trends with graphs
  • Schedule blood sugar check reminders
  • Email reports to physicians
  • A1C estimation calculator
  • Track medications and carbs
Features
Read full description

Glucose Blood Sugar Tracker is the #1 diabetes app built for tracking blood sugar, weight, blood pressure, A1C, medications, carbs and more.  With over 500K+ users, Glucose Blood Sugar Tracker is the top rated diabetes app in the AppStore. FEATURES YOU'LL LOVE • Log your data and identify trends in one easy to use place • Create straightforward entries and tag them for time of day, before/after meals, etc. • Schedule reminders to check your blood sugar levels • Filters that help you see trends and graphs of your logs • Email reports directly to your physician with every detail you want to share • A1C estimation calculator • Also track insulin, medication, A1C, blood pressure, carbohydrates, weight and ketones Over 10K+ users use Glucose Blood Sugar Tracker to manage their diabetes. ---------------------------------------------------------------------------------------------------- "Beautifully designed without all the other distractions from other glucose apps"  - M.C. "Thank you for creating this glucose tracker. It is extremely user friendly (I became very frustrated with many others), and it will track all that I need in one location - I was really concerned that no one had what I needed, but YOU DID IT!" - C.P. ---------------------------------------------------------------------------------------------------- Glucose Blood Sugar Tracker makes it easy to identify trends and log your data in one easy to use place. View a graph of your data and even send a report to a loved one or a healthcare professional. You can also schedule reminders to ensure that you are diligent about checking your blood sugar. Whether you have diabetes or prediabetes, this app makes it easy to track your blood glucose levels. Glucose Blood Sugar Tracker also offers an estimated A1C calculator to help keep you on track in between lab measurements. Glucose Blood Sugar Tracker also tracks what time of day you are checking your blood sugar, such as first thing in the morning, before a meal, or before bed. You can also add a note to each record. In addition, Glucose Blood Sugar Tracker allows you to track insulin, medication, A1C, blood pressure, carbohydrates, weight and ketones. It is a comprehensive app for both diabetics and prediabetics. You can also sync data seamlessly between devices, track medications, and see detailed averages. The app also has configurable reminders to check your blood glucose levels. This helps you make sure to check these levels to stay in control of your diabetes. Tracking has never been easier. Glucose Blood Sugar Tracker integrates with HealthKit by writing all inputted entries to the Health app. Be in charge of your diabetes! Blood sugar tracking has never been this easy! This diabetes tracker an estimated A1C calculator. Please note that this is just an estimate and should never be used for diagnostic purposes. We can't wait for you to join the family :) Install Glucose Blood Sugar Tracker today, for free! Terms of Service: https://www.glucoseforiphone.com/terms-of-service

About

Libre by Abbott

This app provides continuous glucose monitoring for individuals with diabetes. It automatically updates glucose readings to your phone every minute and offers insights into trends and settings. Compatible with specific FreeStyle Libre sensors, it aids in managing diabetes by tracking glucose levels.

Highlights
  • Continuous glucose monitoring
  • Automatic readings every minute
  • Glucose trend insights
  • Compatibility with FreeStyle Libre 2 and 3
  • Generative AI for food impact analysis
Currently charting
Read full description

Libre app[±] is a continuous glucose-monitoring (CGM) app that helps people living with diabetes track their glucose. Compatible with FreeStyle Libre 2 and 3 system sensors. Why Libre app: • Readings automatically update on your phone[±] every minute. • Insights, a tap away. Designed to easily find readings, trends, and settings. COMPATIBILITY Compatibility may vary between operating systems. Learn more about compatible phones and devices at https://www.freestyle.abbott/us-en/support.html. APP INFORMATION Libre app[±] is intended for measuring glucose levels in people with diabetes age 4+ when used with FreeStyle Libre 2 and FreeStyle Libre 3 sensors, and for people with diabetes age 2+ when used with FreeStyle Libre 2 Plus and FreeStyle Libre 3 Plus sensors. For more information, refer to the user’s manual, accessible in the app. Consult a healthcare professional to confirm if this product is right for you or if you have questions about how to use this product to make treatment decisions. ±. For information about device compatibility, see https://www.freestyle.abbott/us-en/support.html ǂ. Libre Assist is a feature within Libre app that uses generative artificial intelligence to provide information on how foods could impact your glucose levels. Generative artificial intelligence may not always be accurate, and it should not be used to make treatment decisions. ◊. Do not use the smartwatch app for treatment decisions. Follow the Libre app instructions on your smartphone. ø. Glucose data and alerts appear on your smartwatch only when your phone is in range of the sensor. Alerts are mirrored from the Libre phone app. Ensure your phone settings are enabled to receive notifications. *. Notifications will only be received when alarms settings are enabled and turned on and sensor is within 20 feet (FreeStyle Libre 2 system) 33 feet (FreeStyle Libre 3 system) unobstructed of the reading device. π. The user’s device must have internet connectivity for glucose data to automatically upload to LibreView and to transfer to connected LibreLinkUp app users. µ. LibreView data management software is intended for use by both patients and healthcare professionals to assist people with diabetes and their healthcare professionals in the review, analysis, and evaluation of historical glucose meter data to support effective diabetes management. LibreView software is not intended to provide treatment decisions or to be used as a substitute for professional healthcare advice. Δ. LibreLinkUp app is only compatible with certain mobile devices and operating systems. Check the Support section of www.librelinkup.com for more information about device compatibility before using the app. Use of the LibreLinkUp app requires registration with LibreView. Product for prescription only, for Important Safety Information please visit FreeStyleLibre.us The sensor housing, FreeStyle, Libre, and related brand marks are marks of Abbott. Other trademarks are the property of their respective owners. For additional legal notices, terms of use, product labeling, and interactive tutorial, go to: http://www.FreeStyleLibre.com. If you’re experiencing any issues, contact Customer Service directly.

Screenshots

Glucose | Blood Sugar Tracker4 screens
Libre by Abbott4 screens

Verdict

The call

The clearest difference is in-app purchases: Libre by Abbott at none against Glucose | Blood Sugar Tracker's 11. Libre by Abbott also leads on review sentiment (40% vs 27%) and ratings volume (110K vs 28K). Glucose | Blood Sugar Tracker's advantage is update cadence (every 3 weeks vs every 3 months) and device support (3 vs 1). On price, rating, ads and chart position there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Glucose | Blood Sugar Tracker sells 9 in-app purchases, starting at $7.99 per month. Libre by Abbott asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.6 for Glucose | Blood Sugar Tracker against 4.6 for Libre by Abbott. Both are backed by a comparable volume of ratings — 28K and 110K respectively. Written reviews are what separate them: 27% of Glucose | Blood Sugar Tracker's written reviews are positive against 40% of Libre by Abbott's.

UpkeepUpdate frequency

Glucose | Blood Sugar Tracker ships an update every 3 weeks, Libre by Abbott every 3 months. Both last shipped on September 24, 2026.

Scorecard6 real differences · 5 level
Glucose | Blood Sugar Tracker versus Libre by Abbott: the parameters behind the verdict, then further details
ParameterGlucose | Blood Sugar TrackerLibre by Abbott
PriceFreeFree
Rating4.6 (28K ratings) — better4.6 (110K ratings)
Positive reviews27.5% of reviews39.5% of reviews — better
Number of ratings28K110K — better
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#28 — better#30
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size89 MB112 MB
Age rating4+4+
DeveloperApp Sub 1 LLCAbbott Labs

Customer experience

Glucose | Blood Sugar Tracker

All ratings28,237 ratings
Positive90.0%
Neutral4.0%
Negative6.0%
Written reviews408 reviews
Positive27.5%
Neutral8.1%
Negative64.5%

Libre by Abbott

All ratings3,267 ratings
Positive82.3%
Neutral7.5%
Negative10.3%
Written reviews2,495 reviews
Positive39.5%
Neutral16.4%
Negative44.1%

User reviews

Glucose | Blood Sugar Tracker

From 28K App Store ratings

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
  • 🔒 Sudden changes to free version

Libre by Abbott

From 110K App Store ratings

What we love

  • 🚀 Streaming every minute
  • 👍 User-friendly design
  • ⭐️ Five-star rating

Room to improve

  • 🔧 Needs more customization
  • 🔍 Lack of detailed view
  • 🔌 Unreliable connection
  • 🔊 Persistent alarms

Bugs and requests

Glucose | Blood Sugar Tracker

Reported bugs

2 issues
  • Apple Watch app not functioning
  • Sync issues with HealthKit causing duplicate entries

Requested features

4 requests
  • Ability to set custom glucose range
  • Medication tracking
  • Improved Apple Watch integration
  • Ability to contact developers

Libre by Abbott

Reported bugs

2 issues
  • Cannot connect to active sensor
  • No historical data transfer

Requested features

9 requests
  • Apple Health connectivity
  • Widget support
  • Dual sensor connections
  • Customizable alert profiles
  • Delayed high alerts
Show 4 more
  • Sensor calibration
  • Apple Watch integration
  • Glucose home screen updates
  • Trend line zoom

In-app purchases

9 purchases

Glucose | Blood Sugar Tracker

Subscriptions9
  • Glucose+$7.991 Month
  • Glucose+$8.991 Month
  • Glucose+2 variants$9.991 Month
Show 6 more
  • Glucose+$29.991 Year
  • Glucose+$39.991 Year
  • Glucose+3 Days trial$39.991 Year
  • Glucose+7 Days trial$39.991 Year
  • Glucose+$49.991 Year
  • Premium Subscription3 Days trial$89.991 Year
None

Libre by Abbott

No in-app purchases

Questions

Is Glucose | Blood Sugar Tracker free?
Glucose | Blood Sugar Tracker is free to download, with in-app purchases available.
Is Libre by Abbott free?
Libre by Abbott is free to download, with no in-app purchases.
Which has better reviews, Glucose | Blood Sugar Tracker or Libre by Abbott?
Glucose | Blood Sugar Tracker is rated higher. Glucose | Blood Sugar Tracker averages 4.6 out of 5 from 28K ratings, while Libre by Abbott averages 4.6 from 110K ratings.
Do Glucose | Blood Sugar Tracker or Libre by Abbott have ads?
Neither Glucose | Blood Sugar Tracker nor Libre by Abbott shows ads.
Which is updated more often, Glucose | Blood Sugar Tracker or Libre by Abbott?
Glucose | Blood Sugar Tracker ships an update every 3 weeks, and Libre by Abbott every 3 months. Most recently, Glucose | Blood Sugar Tracker was updated on September 24, 2026 and Libre by Abbott on September 24, 2026.
Which is more popular, Glucose | Blood Sugar Tracker or Libre by Abbott?
Glucose | Blood Sugar Tracker currently peaks at #28 in the App Store charts, and Libre by Abbott at #30. Chart position reflects recent download velocity rather than total install base.

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