---
title: "nightguard — App Overview"
url: https://marlvel.ai/apps/nightguard
category: Medical
developer: SPORTMEO
platforms: ios, android
rating: 4.4 (784 ratings)
pricing: free
report_level: overview
generated: 2026-04-24
last_verified: "2026-04-24T02:40:28.310Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** While the app offers robust data visualization and integration features, users report significant inconsistencies regarding notification reliability, Apple Watch stability, and HealthKit synchronization.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Medical |
| Rating | 4.4 ★ (784) |
| Pricing | free |
| Platforms | iOS, Android |
| Latest Version (iOS) | 4.0.4 |
| Latest Version (Android) | 1.0.0 |
| Developer | SPORTMEO |

<!-- SECTION: Summary -->
## What is nightguard?

Nightguard is a native iOS and Apple Watch application that visualizes blood glucose data retrieved from a Nightscout backend. It provides users with customizable alert thresholds, trend analysis tools, and optional synchronization with Apple HealthKit.

<!-- SECTION: Key Features -->
## Key Features

- **Alert System**: Provides customizable notifications for blood glucose values that fall outside defined ranges or change at rapid rates.
- **Data Visualization**: Displays current glucose readings alongside an overlay chart of previous day's data to help identify potential future trends.
- **Statistics Function**: Allows users to tune basal rates by overlaying glucose data from different days.
- **HealthKit Integration**: Offers an optional feature to sync blood glucose values directly to the Apple Health app.

<!-- SECTION: Target Audience -->
## Who is it for?

Individuals managing diabetes who utilize the Nightscout platform to monitor their blood glucose levels.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/nightguard/id1116430352?uo=4)
- [Google Play](https://play.google.com/store/apps/details?id=com.app.nightguard&hl=en&gl=us)
- [Full Intelligence Report](https://marlvel.ai/apps/nightguard)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/nightguard).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*