NightKnight Glucose Tracker

NightKnight is a fast, private, beautifully clear way to follow continuous glucose monitoring (CGM) data from your own server. It connects to a NightKnight or Nightscout-compatible deployment you control — so your glucose history stays yours, never sold and never mined for ads.

A GLANCEABLE DASHBOARD • Your current glucose in big, colour-coded type with a live trend arrow and a last-hour sparkline. • A clean 24-hour chart with your target band, high/low lines, and points coloured by range. Drag across it to scrub any reading. • Trailing summary you can flip between 24h, 7, 14, 30 and 90 days: updated GMI (uGMI), average glucose, Time in Range and variability (CV), with a stacked time-in-range bar.

ANALYSIS THAT ACTUALLY EXPLAINS ITSELF • Glycemia Risk Index (GRI) with its hypo/hyper breakdown and risk zone. • Ambulatory Glucose Profile (AGP): every day overlaid into one 24-hour picture with median and percentile bands. • Time-of-day patterns — overnight, morning, afternoon, evening — so you can see when things drift. • Hypo/hyper episode detection with a recent-events feed, plus advanced variability (J-Index, MAGE, CONGA, SD). • Every metric has a plain-language "?" explainer with a link to the clinical source.

BOTH UNITS, FIRST-CLASS mg/dL and mmol/L are both fully supported. Switch any time; every chart, metric and alarm follows instantly.

ON-DEVICE ALARMS Optional high, low and rapid-drop alerts that run on your phone. Simple on/off, no accounts, nothing to configure in the cloud.

APPLE WATCH & WIDGETS A glanceable Watch app and complication, plus Home Screen and Lock Screen widgets, keep your latest number and trend a wrist-flick away.

APPLE HEALTH Optionally read glucose from Apple Health, or write your readings back to it — you choose, and you can turn it off any time.

PRIVATE & SECURE BY DESIGN • Talks only to the server you point it at — your NightKnight or Nightscout instance. • Credentials are sent in headers, never in the URL. • Default deployment works behind Cloudflare Access with a service token. • No third-party analytics, no advertising SDKs, no account with us.

WHAT YOU NEED NightKnight is a follower/viewer app. You need a NightKnight or Nightscout-compatible server with your CGM data. See github page for details. Add your server URL and device token in Settings and you're in.

NOT A MEDICAL DEVICE NightKnight is for information and personal insight only. It is not a medical device and must not be used as the sole basis for any treatment decision. Always confirm with your CGM/meter and follow your healthcare provider's guidance.