# nightguard

> #wearenotwaiting

Canonical page: [https://chrome-stats.com/d/id1116430352](https://chrome-stats.com/d/id1116430352)

## Overview

- **ID:** `id1116430352`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** SPORTMEO
- **Category:** Medical
- **Rating:** 4.50 / 5 (852 ratings)
- **Version:** 4.4.0
- **Last updated:** 2026-08-18
- **First published:** 2016-06-07
- **Size:** 11 MB
- **Data as of:** 2026-09-23
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/nightguard/id1116430352)
- **Website:** [https://github.com/nightscout/nightguard](https://github.com/nightscout/nightguard)
- **Privacy policy:** [https://sportmeo.com/de/bedingungen](https://sportmeo.com/de/bedingungen)

## Description

Nightguard is a Chrome extension that displays your Nightscout BG values from the backend and alerts you when readings go out of range. It shows an overlay chart of yesterday's values to hint at future trends and lets you snooze or reactivate alerts as needed.

Disclaimer: Do not use this extension for medical decisions; it comes with no warranty. The full feature set (HealthKit integration, Apple Watch support, basal-rate tuning) is available in the native Nightguard iOS app. For setup and information, visit nightscout.info.

## Rankings

- #59,528 — Overall

## Review summary

Nightguard is praised for real-time glucose readings on Apple Watch and a clear iPhone interface, with cross-device usefulness. However, reviewers repeatedly report Apple Health sync problems, unreliable alarms, watch app instability after updates, readability issues on small screens, and limited graph data. The app offers strong wrist access but reliability and UI clarity require attention.

### Pros

- Strong Apple Watch support with real-time glucose readings on the watch and functional watch complications.
- Clear, quick-updating data presentation on iPhone.
- Works across multiple devices and data sources, offering flexibility in how glucose data is viewed.
- Active improvements and fixes to watch features (e.g., watch complications) by the developers.

### Cons

- Unreliable Apple Health sync; often requires being in the Glucose section and may only sync recent hours.
- Notifications/alarms not reliably triggering or audible; alerts may fail if the app is not open.
- Watch app instability and complications can break after updates or OS changes.
- Readability/UI issues on small screens (tiny text on watch complications) and limited graph data.
- Inconsistent update intervals for watch complications and widgets.

## Similar extensions and apps

- [zDrip Guard](https://chrome-stats.com/d/id6744721821) — 5.00 / 5
- [Guardian Monitor](https://chrome-stats.com/d/id1546989938) — 4.10 / 5
- [myBG – a Continuous Glucose Monitor Viewer](https://chrome-stats.com/d/id993805949) — 2.30 / 5
- [Nightscout X](https://chrome-stats.com/d/id1333154219) — 4.30 / 5
- [wizBG](https://chrome-stats.com/d/id1292474575) — 5.00 / 5
- [SugrMon](https://chrome-stats.com/d/id6739840672)
- [NightKnight Glucose Tracker](https://chrome-stats.com/d/id6784815820)
- [GotCGM](https://chrome-stats.com/d/id6754181671) — 3.40 / 5
- [Glucose Watch](https://chrome-stats.com/d/id1494633978) — 1.00 / 5
- [Glucose Control Assistant](https://chrome-stats.com/d/id6759715242)
- [Diabetes Tracker Realtime CGM](https://chrome-stats.com/d/id1541145462) — 3.00 / 5
- [Sugar Sense: Blood Glucose CGM](https://chrome-stats.com/d/id6737151615) — 4.80 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id1116430352)