# FreeStyle Libre 2 - US — Flash Glucose Monitoring

> Continuous glucose monitoring for diabetes management with optional alarms. (iPhone/iPad app by Abbott Diabetes Care Inc.)

- Source: https://appshunter.io/ios/app/freestyle-libre-2-us/id1472261444 (this page in markdown: same URL + `.md`)
- Developer: [Abbott Diabetes Care Inc](https://appshunter.io/developer/1027177119)
- Category: Medical, Health & Fitness
- Price: Free
- Rating: 2.49/5 from 4,991 App Store ratings · 201 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.5 · 50 MB
- Languages: English, Spanish
- Released: 2021-08-12
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/freestyle-libre-2-us/id1472261444/reviews.md

## What is FreeStyle Libre 2?

This app is only for use with FreeStyle Libre 2 System Sensors.

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The world’s #1 CGM takes diabetes management to a new level. [3]:

SMALL AND DISCREET: Remarkably small and discreet Sensor

NO FINGERSTICKS: Unsurpassed accuracy, for adults and children [2],[4]

ALARMS: Optional real-time glucose alarms, along with an urgent low glucose alarm, alert you of highs and lows so you can take action [1]

◆◆◆

COMPATIBILITY
Compatibility may vary between phones and operating systems. The FreeStyle Libre 2 app is only compatible with FreeStyle Libre 2 Sensors. Learn more about compatibility at https://freestyleserver.com/distribution/fxaa20.aspx?product=ifu_art41556_202&version=latest&os=all&region=us&language=xx_yy

BEFORE STARTING YOUR SENSOR

Before you start your Sensor, choose whether you want to use the reader or the FreeStyle Libre 2 app. If you are using the FreeStyle Libre 2 Plus sensor with an Automated Insulin Delivery (AID) System, do not activate your sensor with the FreeStyle Libre 2 app or reader. Please visit your insulin pump manufacturer's website for specific activation instructions.which device you want to use.

Alarms and glucose readings can only be received on your phone or your FreeStyle Libre 2 Reader (not both). [1]

To receive alarms and glucose readings on your phone, you must start the Sensor with the FreeStyle Libre 2 app.

To receive alarms and glucose readings on your FreeStyle Libre 2 Reader, you must start the Sensor with your Reader.

Note that the FreeStyle Libre 2 app, Reader and your Automated Insulin Delivery (AID) system do not share data with each other.

When not using an AID, for complete information on app or Reader, scan your Sensor every 8 hours with that device; otherwise, your reports will not include all your data. You can only upload and view data from app and reader on LibreView.com.

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APP INFORMATION
The FreeStyle Libre 2 app is intended for measuring glucose levels in people with diabetes when used with a FreeStyle Libre 2 System Sensor. For more information on how to use the app, refer to the User’s Manual, which can be accessed through 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.

The circular shape of 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 http://FreeStyleLibre.com

If you are using the app, you must also have access to a blood glucose monitoring system as the app does not provide one.

[1] Notifications will only be received when alarms are turned on and the sensor is within 20 feet unobstructed of the reading device. You must enable the appropriate settings on your smartphone to receive alarms and alerts, see the FreeStyle Libre 2 User’s Manual for more information.

[2] FreeStyle Libre 2 User Manual

[3] Data on file, Abbott Diabetes Care. Data based on the number of users worldwide for FreeStyle Libre family of personal CGMs compared to the number of users for other leading personal CGM brands and based on CGM sales dollars compared to other leading personal CGM brands.

[4] Fingersticks are required if your glucose alarms and readings do not match symptoms or when you see Check Blood Glucose symbol during the first 12 hours.

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Before using the app, review product labeling and the interactive tutorial at https://www.freestyle.abbott/us-en/support/overview.html#app2

To resolve any technical or Customer Service issues you are having with a FreeStyle Libre product, please contact FreeStyle Libre Customer Service directly at 1-855-632-8658.

## Key features

- Continuous glucose monitoring
- No fingersticks required
- Optional real-time glucose alarms
- Urgent low glucose alarm
- Small and discreet sensor

## What do users think of FreeStyle Libre 2?

Overall sentiment: negative

**Pros**

- 🚀 Convenient to use phone for monitoring
- 📊 Helpful for understanding glucose trends
- 🔔 Alarms notify of critical levels
- 💪 Improved diabetes management

**Cons**

- 🔇 Inability to silence alarms
- 🔌 Drains phone battery quickly
- 🔢 Inaccurate glucose readings
- 🔁 Frequent connection issues
- 🕰️ Delayed sensor response time

**Commonly reported bugs**

- App crashes or becomes unresponsive
- Incompatibility with latest iOS versions
- Sensor scanning errors

**Most requested features**

- Customizable alarm settings
- Apple Watch integration
- Ability to calibrate sensor
- Seamless switching between reader and app

## Recent user reviews (10 of 201)

All indexed reviews: https://appshunter.io/ios/app/freestyle-libre-2-us/id1472261444/reviews.md

### 1/5 — WORST SYSTEM

*2026-01-29, version 2.7.8*

HISTORY: I have used the freestyle Libre system for many years with success, up until about 8-9 months ago.  

NOW IT IS HORRIBLE.  Every single sensor dies after either 1) immediately, like the TWO j have out on in the past 24 hours, or 2. within 2-3 DAYS of use. 

I purchased a new blood testing monitor at CVS today and will return to finger sticks from now on.  These Libre 2 sensors are unreliable, expensive and worthless. 

YOU SHOULD FIX THESE WORTHLESS SENSORS.  I’m sure I’m not the only diabetic who has had enough.

### 2/5 — Not a Home Run

*2026-01-28, version 2.7.8*

Worked great initially. Then I had to delete the whole app, including history that was being shared with my healthcare provider. I don’t want to have to do that again. Seems like it only connects/scans well for maybe first 12 days after deleting the app and re-adding—only now the data is lost. And then it’s always saying it lost the signal. Very frustrating and annoying. And  alarms unavailable. What good are high glucose and low glucose alerts if the alarms are NEVER working. It’s not my phone and everything else is updated.

### 1/5 — Libre 2 was much more reliable for me

*2026-01-15, version 2.7.8*

I never had problems with my Libre 2 alerting me when I was either high or low, but the Libre 2+ seems to always go out of range or off-line when I’m having an issue and it’s right in the pocket of my pants so it’s very frustrating. What good is a CGM if it doesn’t work when you need it the most? I really hope they make updates that can fix this because otherwise I think I’m going to find another alternative

### 2/5 — Alerts 24/7

*2026-01-10, version 2.7.8*

This app is so annoying with Constant alerts. I just want to check my glucose 4 times a 4 and now this app owns my phone. I need to leave it running 24/7, the silent feature is only 6 hour so it screams early in the morning.

### 2/5 — Undependable

*2025-12-08, version 2.7.8*

Scan unavailable notification most of each day. Very disappointing allowing for zero faith

### 2/5 — Scan error

*2025-12-05, version 2.7.8*

4 sensors have given the error message of change sensor that it’s already been used. Anyone have a solution

### 1/5 — Not compatible with libre2 only on iPhone

*2025-11-17, version 2.7.8*

Just wasted my 100$

### 2/5 — iOS Compatibility

*2025-11-06, version 2.7.8*

I have been waiting for the Freestyle 2+ Sensor App to upgrade for compatibility with the new iOS 26, so that I can get a new phone. Abbott has had plenty of time to update their sensors, but once again I am having to wait to update my operating system or get a new phone, due to the ineptness of your IT dept. I am seriously considering switching to Dexcom.

### 1/5 — What a mess

*2025-10-28, version 2.7.8*

So many apps so many sensors so many regions. What is this trash

### 2/5 — too bad this is the only app i can use for this feature

*2025-10-07, version 2.7.8*

i despise using this app because it came with the device to measure how low or high my mother’s blood sugar is. it disconnects all the time and when i try to connect it rarely works and this is when i am literally a few feet from the sensor. the guy who made this app should be fired!

## Frequently asked questions about FreeStyle Libre 2

### What is this app used for?

This app is used for measuring glucose levels in people with diabetes when paired with a FreeStyle Libre 2 System Sensor. It provides continuous glucose monitoring, eliminates the need for routine fingersticks, and offers optional real-time glucose alarms.

### What are the key features of this app?

Key features include continuous glucose monitoring, unsurpassed accuracy without fingersticks, and optional real-time glucose alarms for highs and lows. The sensor is also described as small and discreet.

### Is this app free to use?

Based on the provided information, the app itself is free to download and use. However, it requires the use of FreeStyle Libre 2 System Sensors, which are a separate purchase.

### What devices is this app compatible with?

Compatibility can vary between phones and operating systems. The app is only compatible with FreeStyle Libre 2 Sensors. Users can find more detailed compatibility information at https://freestyleserver.com/distribution/fxaa20.aspx?product=ifu_art41556_202&version=latest&os=all&region=us&language=xx_yy.

### Can I use this app with an Automated Insulin Delivery (AID) system?

If you are using the FreeStyle Libre 2 Plus sensor with an AID system, you should not activate your sensor with this app or the reader. Please visit your insulin pump manufacturer's website for specific activation instructions. The app, reader, and AID system do not share data with each other.

## Version history (last 5 releases)

### 2.7.8 — 2024-09-18

Bug fixes and performance improvements.

### 2.7.7 — 2024-06-25

Bug fixes and performance improvements.

### 2.7.5 — 2023-09-28

Silence all your glucose alarms including urgent low alarm for up to 6 hours [7], [8], [9]

[7] Silent mode allows users to silence their signal loss and glucose alarms, including urgent low glucose alarm for up to six hours. You will not hear your glucose and signal loss alarms even if you've turned on Override Do Not Disturb but may still get the visual and vibratory notifications based on your phone's settings.

[8] Notifications will only be received when alarms are turned on and the sensor is within 20 feet unobstructed of the reading device. You must enable the appropriate settings on your smartphone to receive alarms and alerts, see the FreeStyle Libre 2 User’s Manual for more information. 

[9] To get the Urgent Low Glucose Alarm on your phone with the FreeStyle Libre 2 app, you will first need to start your FreeStyle Libre 2 sensor with your phone. If you do not start your FreeStyle Libre 2 sensor with your phone, you will not get the Urgent Low Glucose Alarm on your phone.

### 2.7.3 — 2022-09-06

Bug fixes and performance improvements.

### 2.7.2 — 2022-01-26

Bug fixes and performance improvements.

## Apps similar to FreeStyle Libre 2

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| --- | --- | --- | --- |
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| [Dexcom G7](https://appshunter.io/ios/app/dexcom-g7/id1569432518) | 3.1 (7,650) | Free | Medical |
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## More apps by Abbott Diabetes Care Inc

- [FreeStyle LibreLink – FR](https://appshunter.io/ios/app/freestyle-librelink-fr/id1307006511)
- [FreeStyle LibreLink – GB](https://appshunter.io/ios/app/freestyle-librelink-gb/id1307017454)
- [FreeStyle LibreLink - US](https://appshunter.io/ios/app/freestyle-librelink-us/id1325992472)
- [FreeStyle LibreLink – AU](https://appshunter.io/ios/app/freestyle-librelink-au/id1331664436)
- [FreeStyle LibreLink – KR](https://appshunter.io/ios/app/freestyle-librelink-kr/id1354596227)
- [瞬感宝](https://appshunter.io/ios/app/id1401595601)

All apps by Abbott Diabetes Care Inc: https://appshunter.io/developer/1027177119

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*