Comparison

Nightscouter vs Diabetes Diary Plus

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

Head to head
About

Nightscouter

This app allows iOS users to view Continuous Glucose Monitoring (CGM) data from Nightscout-enabled websites directly on their devices. It provides a convenient way to access important health information.

Highlights
  • View CGM data
  • Connects to Nightscout websites
  • iOS device compatibility
  • Supports Apple Watch
Features
Read full description

Nightscouter retrieves data from existing Nightscout enabled websites and allows iOS users to view CGM data on their iOS devices. See: http://www.nightscout.info for more information on Nightscout.

About

Diabetes Diary Plus

Manage your diabetes with this comprehensive tracker. Log blood sugar, insulin, and meals, view trends with charts, and sync with Apple Health. Features include injection reminders, customizable fields, and data export for doctor visits.

Highlights
  • Blood sugar and insulin logging
  • Interactive glucose trend charts
  • Apple Health and Apple Watch integration
  • Injection reminders and timers
  • Customizable data fields
  • Data export to Excel, PDF, CSV
  • HbA1c estimation
Features
Read full description

Diabetes Diary Plus: Your Smart Blood Sugar Tracker & Insulin Manager Take control of your diabetes with Diabetes Diary Plus, the ultimate diabetes diary app for easy and stress-free diabetes management. Effortlessly log your blood sugar levels, insulin doses, and carbohydrates – all in one app. With interactive charts, you can view your glucose trends and easily track your progress. This app is more than just a carbohydrate manager – it simplifies diabetes management and helps with your daily blood sugar monitoring. User-Friendly & Customizable ◉ Easy Logging: Enter blood sugar, insulin, and meals with just a few clicks. ◉ Charts: Track your glucose patterns and trends over weeks and months. ◉ Apple Health: Seamlessly sync your data with Apple Health and use health apps. ◉ Widgets: Keep key values in view right on your home screen or Apple Watch. ◉ Injection Timer: Get reminders for blood sugar checks and insulin injections and monitor absorption times. ◉ No Account Required: Your data remains private and secure. ◉ iCloud Syncing: Access your logs from all your devices – whether iPhone, iPad, or Mac. ◉ Apple Watch: Keep your synced glucose values in view right on your wrist thanks to our Dexcom connection. ◉ Glucose levels in mmol/L or mg/dL. ◉ Customizable fields for basal rates, ketones, notes, and activities. ◉ Carb Calculator: Quickly calculate the carbohydrates in your meals and keep an eye on your daily totals. ◉ Reminders: Set custom reminders for blood sugar checks, insulin, and meals. ◉ PDF Export: Clear, organized PDF reports for doctor visits, or export as CSV for Excel. ◉ Meal Scanner: Scan your meal and instantly see the estimated carbohydrates. Improve your diabetes management: Regularly logging your values in a diabetes diary helps you better recognize and prevent hypoglycemia and hyperglycemia. The intuitive interface allows you to document and understand your diabetes without stress. Diabetes Diary Plus supports both type 1 and type 2 diabetics and is ideal for pregnant women with gestational diabetes. The HbA1c estimation feature allows you to effectively monitor your long-term blood sugar control and detect potential fluctuations early. Pregnancy Feature for Expectant Mothers: Manage your blood sugar levels during pregnancy with our special feature. Quickly and easily track blood sugar, insulin, and meals to keep your health in check throughout pregnancy. A Digital Diabetes Diary Instead of Paper: Replace your classic paper diabetes diary with a clear, digital solution that's always at hand and syncs automatically across all your devices. It's also a great companion for carb counting and meal tracking, helping you see how food and insulin affect your blood sugar over time. You can even track your body weight alongside your glucose data for a complete picture of your health. Syncs readings from the Dexcom G7 system via Apple Health, giving you a seamless overview of your continuous glucose monitoring (CGM) data right inside your diabetes diary. User Interface: Thanks to the clear and organized interface, managing your data is simple. No unnecessary complexity, just the tools you truly need to monitor your diabetes. Gain valuable insights for your diabetes therapy based on the latest findings in diabetology – for optimal collaboration with your diabetologist. Join a dedicated community and share your feedback to improve the app. Your input is crucial for future updates and new features. Visit us at diabetes-diary-plus.com or email us at hello@diabetes-diary-plus.com. We look forward to hearing from you! The app provides you with all the tools you need to simplify your diabetes management and enhance your quality of life. Use the intelligent monitoring to make informed decisions about your diet and medication, and live life to the fullest. Privacy Policy: https://diabetes-diary-plus.com/privacy-policy Terms of Use:https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Nightscouter2 screens
Diabetes Diary Plus4 screens

Verdict

The call

The clearest difference is rating: Diabetes Diary Plus at 4.2 against Nightscouter's 2.0. Diabetes Diary Plus also leads on review sentiment (50% vs 20%) and update cadence (every 4 weeks vs every 5 months). Nightscouter's advantage is in-app purchases (none vs 2) and device support (4 vs 2). On price, ratings volume and ads 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. Diabetes Diary Plus sells 2 in-app purchases, starting at $3.99 per month. Nightscouter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Diabetes Diary Plus holds the better App Store score, 4.2 against 2.0. Both are backed by a comparable volume of ratings — 9 and 10 respectively. Written reviews point the same way: 20% of Nightscouter's written reviews are positive against 50% of Diabetes Diary Plus's.

UpkeepUpdate frequency

Nightscouter ships an update every 5 months, Diabetes Diary Plus every 4 weeks. The most recent releases landed on October 2, 2026 and October 5, 2026 respectively.

Scorecard7 real differences · 3 level
Nightscouter versus Diabetes Diary Plus: the parameters behind the verdict, then further details
ParameterNightscouterDiabetes Diary Plus
PriceFreeFree
Rating2.0 (9 ratings)4.2 (10 ratings) — better
Positive reviews20.0% of reviews50.0% of reviews — better
Number of ratings910 — better
Update frequencyEvery 5 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod, Apple Watch — betteriPhone, Apple Watch
Requires iOS13.6 — better17.0
Further details — not scored
Size7 MB26 MB
Age rating12+4+
DeveloperPeter InaMarco Krapf

Customer experience

Nightscouter

All ratings9 ratings
Positive22.2%
Neutral0.0%
Negative77.8%
Written reviews20 reviews
Positive20.0%
Neutral5.0%
Negative75.0%

Diabetes Diary Plus

All ratings10 ratings
Positive80.0%
Neutral0.0%
Negative20.0%
Written reviews6 reviews
Positive50.0%
Neutral33.3%
Negative16.7%

In-app purchases

None

Nightscouter

No in-app purchases

2 purchases

Diabetes Diary Plus

Subscriptions2
  • Premium - Monthly$3.991 Month
  • Premium - Annual14 Days trial$24.991 Year

Questions

Is Nightscouter free?
Nightscouter is free to download, with no in-app purchases.
Is Diabetes Diary Plus free?
Diabetes Diary Plus is free to download, with in-app purchases available.
Which has better reviews, Nightscouter or Diabetes Diary Plus?
Diabetes Diary Plus is rated higher. Nightscouter averages 2.0 out of 5 from 9 ratings, while Diabetes Diary Plus averages 4.2 from 10 ratings.
Do Nightscouter or Diabetes Diary Plus have ads?
Neither Nightscouter nor Diabetes Diary Plus shows ads.
Which is updated more often, Nightscouter or Diabetes Diary Plus?
Nightscouter ships an update every 5 months, and Diabetes Diary Plus every 4 weeks. Most recently, Nightscouter was updated on October 2, 2026 and Diabetes Diary Plus on October 5, 2026.

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