Bettie vs Dawn Phenomenon
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Bettie
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Food is the one part of diabetes that still feels manual. Whether you are cooking at home, ordering takeaway, eating out, or trying something new on holiday ā Bettie takes the guesswork out of carb counting so you can enjoy your meal, and the hours after. Subscription required for full access. Pricing is shown in the app before purchase. **Snap a photo. Get the carbs.** Take a photo of your plate and Bettie breaks down the carbs, protein, fat, and calories. It works with homecooked meals, restaurant plates, street food, packaged snacks ā anything. You can also scan a barcode, photograph a receipt, or just describe what you are eating. **See how meals actually hit** Connect your CGM data and Bettie maps every meal to your glucose curve. Instead of guessing which meals work for you, you can actually see it. **Build your personal playbook** Over time, Bettie builds a picture of how you eat. Search your history for similar meals, compare glucose responses side by side, and spot the patterns that keep you in range. **Refine with a conversation** Not sure about the portion? Something you have never had before? Ask Bettie. The built-in assistant can refine estimates, pull up past meals, and give you context on your glucose trends. **Four ways to log. Zero friction.** - Photo / snap your plate - Barcode / scan packaged food - Receipt / photograph a receipt or menu - Text / describe it in your own words **Glucose insights that actually help** - See which meals keep you steady and which ones surprise you - Compare similar meals side by side - Track patterns and trends over time **Built for people who count carbs every meal** Bettie is not a diet app. It is built for people who count carbs all day, every day - at home, at work, eating out, or on holiday. The goal is to make food feel less like a maths problem and more like just eating. Terms of Use: https://bettie.app/terms
Dawn Phenomenon
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Dawn Phenomenon analyzes your overnight glucose data and shows the patterns most people never see ā when your sugar bottoms out, when it starts rising, and whether last night fits the classic "dawn phenomenon" pattern. ⢠Reads your CGM glucose readings and sleep window from Apple Health ⢠Great for users of a GLP-1 ⢠Detects the dawn phenomenon (overnight low to morning rise of 30+ mg/dL by default) ⢠Differentiates dawn phenomenon from the Somogyi effect (a rebound after an overnight hypo) ⢠Shows last night with an interactive curve, nadir, peak, waking reading, and time-in-range ⢠Swipe to revisit the last 5 nights ⢠Trends tab overlays your week, shows a "dawn score" (how often dawn pattern appears), the average rise, and how sleep duration correlates with rise size ⢠Export a PDF report of any single night or your full week to share with your endocrinologist **Privacy first** All analysis happens on your device. Your glucose and sleep data never leave it. No accounts. No third-party services. Settings sync via iCloud key-value storage only. **Customize the analysis** Tune the rise and hypo thresholds in Settings to match your own targets. Choose whether to pull bed/wake times from Apple Health's sleep samples, or set them manually. **Important** This app is for informational and educational purposes only. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease or condition. Always consult your healthcare provider before changing your treatment.
Screenshots
Verdict
The clearest difference is in-app purchases: Dawn Phenomenon at none against Bettie's 1. Bettie's advantage is iOS requirement (15.1 vs 26.5). On price, update cadence, ads and device support there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Bettie sells 1 in-app purchase, starting at $2.99 per month. Dawn Phenomenon asks for nothing beyond the download.
Bettie ships an update every 11 days, Dawn Phenomenon weekly. The most recent releases landed on September 14, 2026 and September 9, 2026 respectively.
| Parameter | Bettie | Dawn Phenomenon |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 11 days | Weekly ā better |
| Ads | No | No |
| In-app purchases | Yes | No ā better |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 15.1 ā better | 26.5 |
| Further details ā not scored | ||
| Size | 48 MB | 3 MB |
| Age rating | 17+ | 17+ |
| Developer | Ben Long | Robert Darwin Johnston |
In-app purchases
Bettie
- Bettie Pro7 Days trial$2.991 Month
Dawn Phenomenon
No in-app purchases









