Comparison

nightguard vs Diabetes

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

Head to head
About

nightguard

Monitor blood glucose levels from your Nightscout backend. Receive alerts for out-of-range values, track historical data with overlay charts, and tune basal rates with statistics. Optionally sync data to Apple HealthKit.

Highlights
  • Blood glucose value display
  • Customizable glucose range alerts
  • Alert snoozing and reactivation
  • Rapid rise/fall alerts
  • Historical overlay charts
  • Basal rate tuning statistics
  • HealthKit data sync
Features
Read full description

Disclaimer! Don't use this App for medical decisions. It comes with absolutely no warranty. Use it at your own risk! You can use nightguard to submit your bg values to the Apple HealthKit. This is disabled by default but can be enabled in the nightguard app. Nightguard is an app that displays your blood glucose values from the Nightscout backend. It is a native iOS App with support for the Apple Watch. Features are: - Define a range of acceptable blood glucose values. - Whenever your values are out of range you will be alerted. - You can snooze the alerts all the time and for a defined time period. - You can reactivate the alerts all the time. - You can activate alerts if the values are rising or falling too fast. - The app displays yesterdays values as an overlay chart. This way you have a hint about how your values could behave in the future. - Tune your basal rates with the statistics function to overlay different days - Sync your bg values to HealthKit (optional) For the alarms to work the app has to be active. So you can enable a screen lock that keeps the app running all night long. Have a look at www.nightscout.info for more information about how to setup your own Nightscout backend.

About

Diabetes

This app helps users manage diabetes by tracking blood glucose, food intake, and exercise. It provides detailed reports, charts, and statistics, and can analyze data from various glucometers and insulin pumps. An Apple Watch app and Health app integration are also available.

Highlights
  • Blood glucose tracking
  • Nutrition database
  • Exercise logging
  • Detailed reports and charts
  • Data import from glucometers/insulin pumps
  • Apple Watch app
  • Apple Health integration
Features
Read full description

Designed for both smart phones and tablets, this application will help you manage your diabetes better and keep it under control. Whether you are Type 1 or Type 2, have Gestational Diabetes or just want to help and monitor a family member, this is the logbook app for you. The application tracks almost all aspects of the diabetes treatment and provides you with detailed reports, charts and statistics. You can send the reports to your supervising physician via email. Diabetes:M also gives you various tools, so you can find the trends in blood glucose levels. It also has a vast nutrition database, to help you keep track of your food intake and nutrition information, as well as exercise time. Diabetes:M can analyze the values from the imported data from various glucometers and insulin pumps via the exported files from their respective diabetes management software systems. APPLE WATCH APP AVAILABLE With our Apple Watch app you can get even more out of Diabetes:M: - Overview – check carbs and calories intake for the current day, as well as latest insulin doses. - Log new entries – you can log glucose, carbs, proteins, fats, calories and insulin taken right on your wrist! APPLE HEALTH INTEGRATION Sync health data from thousands of apps via Health app, including: Dexcom, One Touch, Accu-Chek, Agamatrix, iHealth, Dario, Garmin, Fitbit, Nike+, UP by Jawbone, Misfit, Pebble, Human, Strava, My Fitness Pal, Lose it!, Lark, Weight Watchers, Withings PHYSICAL HARM DISCLAIMER The information and statistical data provided by this application is only to help with the tracking of how the treatment affects the overall diabetes condition. All decisions about the diabetes therapy must be taken after consulting with a doctor. JURISDICTIONAL STATEMENT - Diabetes:M is an ISO 13485 certified product, that meets maximum requirements for safety, security and quality. - Diabetes:M is licensed by Nipro Diagnostics to connect to Nipro's 4Sure and 4Sure Smart meters. - Diabetes:M is a standalone software for tracking diabetes condition available in all countries. It does not provide real time monitoring of glucose or any other vital signs. The app can connect via Bluetooth with some devices available in the EU and USA. In the other countries the users can use the app as a standalone diabetes diary software and enter the data manually. PREMIUM SUBSCRIPTION FEATURES If you’re really serious about your health, our subscription plan ($4.99/month) includes: + No Ads – Subscribing removes all advertising from the app, so you can concentrate on what is important. + Expanded Food Database + Reports - Get your reports in PDF or XLS format + Many others -- Additional information -- • To unlock additional server functions Diabetes:M requires registration and subscription • Subscriptions are available on a 1 month ($4.99), 3 months ($13.99), 6 months ($24.99) and 12 months ($49.99) basis • Subscription payment is charged to a user’s iTunes account at confirmation of purchase • All subscription plans will auto-renew unless the subscription is canceled at least 24 hours before the current subscription period ends • Renewals will be charged to your iTunes account 24 hours prior to the end of the current subscription period • Auto-renewals may be canceled by navigating to your account settings after subscription purchase • Canceled subscription will stop at the end of the current billing cycle Terms and Privacy Policy: https://www.manula.com/manuals/sirma-medical-systems/diabetes-m-user-guide/terms.and.privacy/en/topic/privacy-policy

Screenshots

nightguard4 screens
Diabetes4 screens

Verdict

The call

nightguard and Diabetes both sit at 4.5 stars, but that hides the real split: 70% of nightguard's written reviews are positive against 33% of Diabetes's. nightguard also leads on ads (none vs shown) and update cadence (monthly vs every 2 months). Diabetes's advantage is iOS requirement (15.0 vs 17.0). On price, rating, ratings volume and in-app purchases 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. nightguard sells 2 in-app purchases, starting at $1.99 per month and Diabetes sells 8 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.5 for nightguard against 4.5 for Diabetes. Both are backed by a comparable volume of ratings — 892 and 990 respectively. Written reviews are what separate them: 70% of nightguard's written reviews are positive against 33% of Diabetes's.

UpkeepUpdate frequency

nightguard ships an update monthly, Diabetes every 2 months. Both last shipped on November 2, 2026.

Scorecard4 real differences · 6 level
nightguard versus Diabetes: the parameters behind the verdict, then further details
ParameternightguardDiabetes
PriceFreeFree
Rating4.5 (892 ratings)4.5 (990 ratings) — better
Positive reviews70.1% of reviews — better33.3% of reviews
Number of ratings892990 — better
Update frequencyMonthly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFreemium
DevicesiPhone, iPad, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS17.015.0 — better
Further details — not scored
Size13 MB68 MB
Age rating17+17+
DeveloperSPORTMEOSirma Medical Systems JSC

Customer experience

nightguard

All ratings887 ratings
Positive86.1%
Neutral4.1%
Negative9.8%
Written reviews221 reviews
Positive70.1%
Neutral13.1%
Negative16.7%

Diabetes

All ratings990 ratings
Positive88.1%
Neutral4.0%
Negative7.9%
Written reviews177 reviews
Positive33.3%
Neutral17.5%
Negative49.2%

User reviews

nightguard

From 892 App Store ratings

What we love

  • 🚀 Great app for monitoring glucose levels
  • 👍 Helpful for managing diabetes
  • 🤖 Integrates well with Apple Watch
  • 📊 Provides useful data visualization

Room to improve

  • 🐛 Alarms/notifications not working properly
  • 🔄 Inconsistent data sync/refresh issues
  • 📱 Apple Watch app crashing/not functioning
  • 🔢 Issues with unit conversions (mg/dL vs mmol/L)

Diabetes

From 990 App Store ratings

What we love

  • 🚀 Helpful for managing diabetes
  • 🔒 Tracks insulin, glucose, and more
  • 👍 Useful reporting and analytics

Room to improve

  • 🐛 Frequent crashes and glitches
  • 🔌 Bluetooth connectivity issues
  • 💸 Expensive premium subscription
  • 🤖 Poor user interface and navigation
  • 🔍 Lacking in food database and search functionality

Bugs and requests

nightguard

Reported bugs

4 issues
  • Readings stuck or not updating
  • Nightscout URL not recognized
  • Glucose data not syncing to Apple Health
  • Sudden disappearance of Apple Watch app

Requested features

4 requests
  • Add ability to view/scan graph data points
  • Improve Apple Watch complication and widget
  • Allow custom high/low alert thresholds
  • Provide more detailed user manual/documentation

Diabetes

Reported bugs

4 issues
  • Entries disappearing from logbook
  • Insulin sensitivity settings not working correctly
  • Unable to import data from FreeStyle Libre
  • Sync issues with Apple Health

Requested features

4 requests
  • Add support for Dexcom and other CGM devices
  • Improve bolus calculator and insulin on board tracking
  • Allow customization of color schemes and font sizes
  • Integrate with Apple Health and other health platforms

In-app purchases

2 purchases

nightguard

Subscriptions2
  • Nightguard Pro$1.991 Month
  • Nightguard Max Subscription$3.991 Month
8 purchases

Diabetes

Subscriptions8
  • Premium (Promotion)$2.991 Month
  • Premium$4.991 Month
  • Premium (Promotion)$8.493 Months
Show 5 more
  • Premium$13.993 Months
  • Premium (Promotion)$14.996 Months
  • Premium$24.996 Months
  • Premium (Promotion)$29.991 Year
  • Premium$49.991 Year

Questions

Is nightguard free?
nightguard is free to download, with in-app purchases available.
Is Diabetes free?
Diabetes is free to download, with in-app purchases available.
Which has better reviews, nightguard or Diabetes?
Diabetes is rated higher. nightguard averages 4.5 out of 5 from 892 ratings, while Diabetes averages 4.5 from 990 ratings.
Do nightguard or Diabetes have ads?
Diabetes shows ads; nightguard does not.
Which is updated more often, nightguard or Diabetes?
nightguard ships an update monthly, and Diabetes every 2 months. Most recently, nightguard was updated on November 2, 2026 and Diabetes on November 2, 2026.

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