# nudg \| diabetes companion — nudg'n you along

> Diabetes management companion integrating with Nightscout for data insights and logging. (iPhone/iPad app by Jonathan Rhodes.)

- Source: https://appshunter.io/ios/app/nudg-diabetes-companion/id6747185944 (this page in markdown: same URL + `.md`)
- Developer: [Jonathan Rhodes](https://appshunter.io/developer/1820189212)
- Category: Medical, Health & Fitness
- Price: Free with in-app purchases
- Age rating: 12+
- Requires: iOS 26.0 · 45 MB
- Languages: American English
- Released: 2025-07-18
- Data updated: 2026-09-01
- Monetization: freemium
- User reviews in markdown: https://appshunter.io/ios/app/nudg-diabetes-companion/id6747185944/reviews.md

## What is nudg | diabetes companion?

nudg: Clarity, Control, and Peace of Mind.
Built by a Diabetic for Diabetics

Connect Dexcom or Libre directly, or link your Nightscout site — DIY or standard CGM, nudg turns your diabetes data into decisions you can act on. No complex setup.

**Live Dashboard**
Glucose, trend, and active insulin at a glance, with a smart forecast that accounts for your insulin and carbs — and shows you how accurate it's been.

**Dose Calculators, with Guardrails**
Quick Bolus, Correction, Meal, and Extended Bolus tools. Unusually large doses are capped and confirmed; stale or low readings trigger warnings before you dose.

**Log Everything, Fast**
Insulin, carbs, fluids, ketones, weight, exercise, and notes — one tap from the dashboard, your Apple Watch, or Siri.

**Hydration, Built for Diabetes**
A daily water goal that rises with time spent high, exercise, and sick days — with gentle reminders only when you're behind.

**Alerts That Matter**
High, low, urgent low, and rapid-change notifications, plus daily basal reminders with one-tap logging.

**AI Nutrition**
Describe or photograph your meal for a carb estimate in seconds — then get a suggested dose built from your ICR, ISF, current glucose, and any correction needed.

**Analytics & Reports**
Time in Range, estimated A1c, variability, and sensitivity trends — detailed enough for your doctor, clear enough for you.

**Everywhere You Are**
Apple Watch app and complications, widgets, Live Activities, Apple Health sync (glucose, insulin, carbs, water, workouts, sleep), fasting timer, supply tracking, and iCloud backup.

Disclaimer: nudg is for informational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider before changing your therapy.

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula

## Key features

- Real-time glucose dashboard
- Intelligent insulin calculators
- Nutrition estimation
- Comprehensive treatment logging
- Health records tracking
- Advanced data analytics
- Personalized therapy insights

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium Monthly | $3.99 | per month |
| Premium 6-Month | $19.99 | per 6 months |
| Premium Yearly | $34.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/nudg-diabetes-companion/id6747185944/reviews.md

### 3/5 — Issues connecting, missing features

*2026-01-21*

Wow, using the access token didn’t work. I had to inspect with Charles in order to see what it was sending. When using an api-secret, the app is supposed to sha1sum the secret before sending it as a header. It’s not doing that.
I suspect most users having trouble experience that issue here. The other option is to create an access token and add that in the nudg app. There seems to be missing instructions in the app on how to do that.

Even after getting authenticated, there’s a lot of errors that appear when using the app. The graphs work, but there’s no notes or treatments that appear on the graphs. I was just hoping to have a beautiful, easy to use interface to view my nightscout data.

**Developer response:** Thank you so much for the detailed feedback—and especially for taking the time to inspect the traffic with Charles. Your technical insight was incredibly helpful.

I’m pleased to let you know that we have addressed all your points in the upcoming release:

* API Secret Hashing: You were spot on. I've now implemented SHA1 hashing for the API-SECRET header. This should resolve the authentication issues and the '401' errors users were experiencing.
* Visible Treatments & Notes: I found that annotations were actually hidden by default. I have now enabled Carb, Insulin, and Note markers by default on the graphs. Additionally, I've doubled the 'matching window' for these entries, so treatments will appear on the graph even if your glucose readings are slightly spaced out.
* Clearer Setup Instructions: I've added specific guidance to the configuration screen explaining where to find the API Secret or how to generate an Access Token within Nightscout (Admin Tools > Subjects).

I really appreciate you helping me make the app more robust for the Nightscout community. 

The following changes will be available in the next release along with Dexcom / Libre integration as well as Nightscout.

### 3/5 — Can’t connect to nightscout

*2026-01-11*

This is unable to connect to my instance of nightscout. I’ve double and triple checked my URL and API key. Connection failed. Please check your URL and API secret.

I’ve used nightscout with a bunch of other services including some that I’ve made.

The screenshots look fantastic! I’d really like to get this working.

## Frequently asked questions about nudg | diabetes companion

### What is nudg and how does it work?

nudg is a diabetes management companion that connects to your Nightscout site to display real-time glucose readings, trend arrows, and daily stats. It transforms raw data into actionable insights for better health decisions.

### Does nudg require a Nightscout site?

Yes, nudg requires an active Nightscout site to function. It is designed to integrate with your existing Nightscout data.

### What are the premium features in nudg?

Premium features include a Nutrition Calculator for estimating carb counts, Extended Bolus for managing slow-digesting meals, Advanced Analytics for detailed glucose and trend insights, and Intelligent Insights for personalized therapy adjustments.

### How much does nudg cost?

nudg is free to download and use with basic features. Premium features are available through subscription plans: $3.99/month, $19.99 for 6 months, or $34.99 annually.

### Can nudg sync with Apple Health?

Yes, nudg offers HealthKit integration to seamlessly sync glucose, insulin, carb, and weight data to Apple Health. It can also pull in workouts, sleep data, and other health information.

### What is the age rating for nudg?

nudg has an age rating of 12+, making it suitable for teenagers and adults managing diabetes.

### How often is nudg updated?

The latest version of nudg is 1.2, and it was last updated on January 22, 2026. This indicates a recent update for ongoing development and support.

### Is nudg suitable for professional medical advice?

No, nudg is for informational and educational purposes only and is not a substitute for professional medical advice. Always consult your healthcare provider for any changes to your diabetes therapy.

## Version history (last 5 releases)

### 2.3.3 — 2026-08-28

• A brand new Liquid Glass tab bar — full width, with the fluid iOS bubble you can hold and drag across tabs. Settings now slides up from the gear button.
• Smarter glucose forecast — the estimate line now uses your active insulin and digesting carbs, shows a confidence range, and no longer dips sharply the moment you log a dose.
• See how accurate it's been — tap the target icon to compare what the forecast predicted 30 minutes ago with what actually happened.
• Safer bolus suggestions — unusually large doses are capped at your maximum bolus and ask for confirmation, with warnings for stale readings or below-range glucose. Set your high dose warning in settings/Insulin Settings
• Truer insulin activity — optional exponential insulin model with a tunable peak time, so IOB matches how rapid insulin really behaves.
• Hydration, built for diabetes — a daily water goal from your weight that rises with time spent high, exercise, and sick days. Track it on a new dashboard card, log drinks in one tap (now from your Apple Watch too), and sync water with Apple Health.
• Water reminders that don't nag — optional alerts only when you're behind pace, plus a nudge when glucose stays high, since water helps clear it. Manage it all in Settings → Hydration.

### 2.3.2 — 2026-07-04

- bug fixes

### 2.3.1 — 2026-06-18

- Apple Watch app with current glucose, trend arrow, and freshness — plus four watch complications (inline, circular ring, modular corner, and rectangular sparkline)
  - Quick logging from your wrist — log carbs or insulin with the Digital Crown, with instant sync to iPhone and Nightscout
  - Correction Calculator on Watch — suggested dose from your current glucose, ISF, target, and IOB, log in one tap
  - Lock Screen Live Activity and Dynamic Island — live glucose, trend, age, and a 1-hour chart
  - Ask Siri for your glucose — hands-free check from the Lock Screen, AirPods, Action Button, or CarPlay
  - Estimate meals by voice with Siri — speak what you ate, get carbs, insulin against your ICR/ISF/target/IOB, and an option to log it all (Premium)
  - Voice-log a correction with Siri — speaks the recommendation and offers to log it as taken, honouring Confirm Injections
  - CarPlay support — see your latest glucose, trend, and a 1-hour sparkline on the car display
  - Daily Basal Reminder — set a time and dose, get a notification that breaks through silent mode, log in one tap
  - Time-Sensitive glucose alerts — high and low alerts now break through Focus and Do Not Disturb
  - AI Settings Tuner — Advanced Tools entry that analyses 14 days of glucose and treatment data to suggest specific ISF/ICR adjustments
  - Smarter Insulin Insights — now spots under-correction, missed boluses, and chronic mild under-bolusing
  - AI Photo Nutrition upgrades — session persists, plus Clear and Save as Meal
  - 10 new colour palette themes — Classic, Midnight, Ocean, Forest, Sunset, Lavender, Rose, Slate, Solarized, Neon, and Mono (Premium)
  - Plus bug fixes and performance improvements

### 2.3 — 2026-06-15

What's New in v2.3
  
• CarPlay Support – View your live glucose readings, trend, and range status directly on your car's display while driving
• Premium Across All Devices – Your subscription now unlocks nudg on every device signed into your Apple ID automatically, with no restore required.
• iCloud Treatment Sync – Treatments logged on one device now sync to all your other devices via iCloud. Enable iCloud Sync in Settings → Data & Sync.
• Keep Screen On – Tap the sun icon in the home screen toolbar to stop your screen from locking while you monitor your glucose.
• Landscape Mode – Rotate your iPhone for a two-column view with the glucose card and stats on one side and the full chart on the other.
• Redeem Promo Codes – Redeem App Store promo codes directly from Help & Support.
• WhatsApp Channel – Follow the nudg WhatsApp channel for updates, tips, and news.
  
  Bug Fixes & Improvements

• Fixed premium subscription not being recognised on second devices using the same Apple ID.
• Fixed cross-device treatment syncing so logs from one device appear on all others.
• Faster cross-device sync for newly logged treatments via iCloud Key-Value Store fast path.
• Fixed What's New screen not appearing for users with an active profile.
• Fixed duplicate treatment entries appearing in the treatments list
• Fixed fasting timer being oversized on iPad and Mac.
• Various stability improvements and reduced log noise.

### 2.2 — 2026-06-09

- Glucose prediction line — The chart now shows an estimated glucose line extending 30 minutes ahead, calculated using your active insulin on board. You can scrub into the prediction zone and see the estimated value, how far ahead it is, and which projected point is selected — the same interactive experience as the real data.
- Advanced Analytics overhaul — Completely rebuilt with three tabs: Overview (HbA1c, GMI, 5-zone Time in Range bar, key stats), 24h Profile (Ambulatory Glucose Profile showing your typical glucose curve with percentile bands across up to 90 days), and Patterns (hourly bar chart showing which times of day run high or low, plus a daily average trend). 
- Clinical PDF Reports — Reports now include a cover page with HbA1c, GMI, TIR breakdown, and a 5-zone glucose bar; an AGP page; a paginated daily summary table; and per-day detail pages. Add clinic notes that appear on the cover — designed to share directly with your healthcare team.
- Dashboard layouts — Choose between three stat display styles in Settings: Horizontal Strip (snap-scrolling cards), Compact Grid, or Full Cards. IOB is now shown directly on the main glucose card.
- Glucose alerts — Per-profile threshold alerts for High, Low, Urgent Low, and Rapid Rise/Fall, each with independent cooldown timers to prevent alert flooding.
- Insights for Dexcom & Libre users — Suggestions and patterns (nocturnal hypos, dawn phenomenon, high variability, time-of-day TIR) now work without a Nightscout profile.
- iCloud Sync fix — Data from other devices now syncs back automatically in the background.
- LibreView timestamp fix — Readings were showing 1 hour off during BST — now correctly parsed as UTC.
- Bug fixes and performance improvements

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## More apps by Jonathan Rhodes

- [balanc](https://appshunter.io/ios/app/balanc/id6752811553)
- [jotr](https://appshunter.io/ios/app/jotr/id6780445457)

All apps by Jonathan Rhodes: https://appshunter.io/developer/1820189212

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-01.*