NightKnight Glucose Tracker vs GlucoPop

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.

Your sensor's value on your phone, on the Lock Screen, on Apple Watch and — with iOS 26 — in the widget area of the CarPlay dashboard. Without opening anything. WHAT IT DOES - The live value, a trend arrow and the last 3, 6, 12 or 24 hours as a curve - Low, high, urgent-low and no-data alerts - Separate thresholds for the night, and a snooze — never for an urgent low - Emergency plan: when the value crosses a line you drew, the message you wrote and a call are one tap away in the Lock Screen notification (up to three contacts) - Friends and family — whatever sensor they wear, in one app; each with their own account - The board: time in range today and this week, a streak, estimated HbA1c - Home Screen and Lock Screen widgets, an Apple Watch app and a watch-face complication - Make it yours: light or dark theme, a colour, a pattern or your own photo - Siri: "What is my glucose in GlucoPop?" - Meal report: two hours after a meal, where the curve started, how far it rose and when it came back; side by side with the other times you ate the same - Food history: how the curve usually went after each food; a rise nothing explains, noted with one tap - Last night in the morning, last week on Monday; a week card you can share - Time in range by your own range and by the international 70–180 - Carbs from a barcode (Open Food Facts) and a photo of the meal - Writing readings to Apple Health — only for the people you tick; if you like, reading sleep, heart rate and steps from Health to show beside the curve SENSORS Dexcom G6, G7, ONE and ONE+ · FreeStyle Libre 2, 2 Plus, 3 and 3 Plus · Medtrum TouchCare A6, A7 and Nano · and everything else through Nightscout. GlucoPop does not read the sensor itself; it signs in to your sensor's own service (Dexcom Share, LibreLinkUp, Medtrum EasyView, Nightscout) with your account. Dexcom, FreeStyle Libre and Medtrum are trademarks of their respective owners; GlucoPop is independent and is not affiliated with or endorsed by them. PRIVACY It has no account of its own. Your credentials stay in your phone's keychain (and, while the watch reads for itself, on your paired Apple Watch), your readings stay on your phone, and the app, its widgets and the watch talk to your sensor's service directly. Your credentials and readings never reach us. The one exception is optional and off by default: if you switch on "Wake-ups from the server", our server is told your phone's notification address and nothing else. When you scan a barcode, the barcode number goes to Open Food Facts to find the product; no account, name or glucose value goes with it. Sleep, heart rate and steps read from Health are only shown: never stored, never sent anywhere. PRICE Everything is free today. The day I can no longer carry the app's costs on my own, a few advanced features move to a subscription; the live value, the curve and the alerts stay free for good. The alert that warns you about a hypo is not a feature to be unlocked. IMPORTANT GlucoPop is not a medical device and must not be used to make treatment decisions. The values it shows come from your sensor's own service and can be delayed. Confirm with your sensor's official app or a finger-prick, and talk to your doctor before treating. The summaries show what happened; they calculate no doses and do not tell you what to eat. iOS decides for itself how often an app may run in the background. GlucoPop is not an alarm system and does not take the place of the app your sensor came with. When it loses sight of your value, it tells you.