Comparison

Glucose | Blood Sugar Tracker vs FreeStyle Libre 3

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

FreeStyle Libre 3

Monitor your glucose levels in real-time with advanced continuous glucose monitoring technology. Receive immediate alerts for low or high glucose readings and gain insights into your trends with detailed reports. This app is designed for individuals managing diabetes.

Highlights
  • Real-time glucose readings
  • Low/high glucose alerts
  • Readings updated every minute
  • Detailed glucose trend reports
  • Time in range tracking
Currently charting
Read full description

The FreeStyle Libre 3 app is cleared for use with the FreeStyle Libre 3 system sensors and FreeStyle Libre Select sensors. Features include: • Your glucose in real time, anytime[1]. • Optional glucose alarms[2] • Glucose Reports COMPATIBILITY FreeStyle Libre 3 app is compatible with the FreeStyle Libre 3 system [and FreeStyle Libre Select] sensors. It is not compatible with FreeStyle Libre or FreeStyle Libre 2 system sensors. Compatibility may vary between smartphones and operating systems. Learn more about compatible smartphones at [www.FreeStyleLibre.com]. APP INFORMATION The FreeStyle Libre 3 app is intended for measuring glucose levels in people with diabetes when used with the FreeStyle Libre 3 system sensors. For more information on how to use the FreeStyle Libre 3 app, please refer to the User’s Manual. 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. [1] A 60-minute warm-up is required when applying the sensor. [2] Notifications will only be received when alarms are turned on and the sensor is within 33 feet or 10 meters unobstructed of the reading device. 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 and terms of use, go to [www.FreeStyleLibre.com] ======== Before using the app, review product labeling and the interactive tutorial at [insert localized product support page]. To resolve any technical or Customer Service issues you are having with a FreeStyle Libre product, please contact FreeStyle Libre Customer Service directly.

Screenshots

Glucose | Blood Sugar Tracker4 screens
FreeStyle Libre 34 screens

Verdict

The call

The clearest difference is rating: Glucose | Blood Sugar Tracker at 4.6 against FreeStyle Libre 3's 2.4. Glucose | Blood Sugar Tracker also leads on update cadence (every 3 weeks vs every 5 months) and review sentiment (27% vs 12%). FreeStyle Libre 3's advantage is in-app purchases (none vs 11). On price, ads, chart position and device support 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. FreeStyle Libre 3 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Glucose | Blood Sugar Tracker holds the better App Store score, 4.6 against 2.4. Both are backed by a comparable volume of ratings — 28K and 6K respectively. Written reviews point the same way: 27% of Glucose | Blood Sugar Tracker's written reviews are positive against 12% of FreeStyle Libre 3's.

UpkeepUpdate frequency

Glucose | Blood Sugar Tracker ships an update every 3 weeks, FreeStyle Libre 3 every 5 months. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard6 real differences · 5 level
Glucose | Blood Sugar Tracker versus FreeStyle Libre 3: the parameters behind the verdict, then further details
ParameterGlucose | Blood Sugar TrackerFreeStyle Libre 3
PriceFreeFree
Rating4.6 (28K ratings) — better2.4 (6K ratings)
Positive reviews27.5% of reviews — better12.3% of reviews
Number of ratings28K — better6K
Update frequencyEvery 3 weeks — betterEvery 5 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#28 — better#38
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS16.015.5 — better
Further details — not scored
Size89 MB54 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%

FreeStyle Libre 3

All ratings5,985 ratings
Positive26.7%
Neutral13.3%
Negative60.0%
Written reviews767 reviews
Positive12.3%
Neutral15.8%
Negative72.0%

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

FreeStyle Libre 3

From 6K App Store ratings

What we love

  • 🚀 Smaller and less obtrusive sensor
  • 🚀 Accurate continuous glucose monitoring
  • 👍 Helpful for managing diabetes
  • 👍 Improved from previous Libre versions

Room to improve

  • 🐛 Frequent sensor failures and connectivity issues
  • 🔊 Loud and non-customizable alarms
  • 🔍 Limited data visualization and analysis capabilities
  • 🔌 Requires phone to be nearby and charged
  • 🤖 Lack of integration with Apple Health and Watch

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

FreeStyle Libre 3

Reported bugs

3 issues
  • Sensor errors and failures
  • Connectivity issues between sensor and app
  • Incompatibility with newer iOS versions

Requested features

5 requests
  • Ability to customize alarm settings
  • Integration with Apple Health and Apple Watch
  • More detailed glucose data and graphing options
  • Ability to log finger stick readings
  • Compatibility with newer iOS versions

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

FreeStyle Libre 3

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 FreeStyle Libre 3 free?
FreeStyle Libre 3 is free to download, with no in-app purchases.
Which has better reviews, Glucose | Blood Sugar Tracker or FreeStyle Libre 3?
Glucose | Blood Sugar Tracker is rated higher. Glucose | Blood Sugar Tracker averages 4.6 out of 5 from 28K ratings, while FreeStyle Libre 3 averages 2.4 from 6K ratings.
Do Glucose | Blood Sugar Tracker or FreeStyle Libre 3 have ads?
Neither Glucose | Blood Sugar Tracker nor FreeStyle Libre 3 shows ads.
Which is updated more often, Glucose | Blood Sugar Tracker or FreeStyle Libre 3?
Glucose | Blood Sugar Tracker ships an update every 3 weeks, and FreeStyle Libre 3 every 5 months. Most recently, Glucose | Blood Sugar Tracker was updated on September 24, 2026 and FreeStyle Libre 3 on September 23, 2026.
Which is more popular, Glucose | Blood Sugar Tracker or FreeStyle Libre 3?
Glucose | Blood Sugar Tracker currently peaks at #28 in the App Store charts, and FreeStyle Libre 3 at #38. Chart position reflects recent download velocity rather than total install base.

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