The App I Built to Help Manage My Diabetes
Hi HN, I’m Joshua, a student, and I’m excited (and a little nervous) to share something deeply personal that I’ve been working on: Islet, my diabetes management app powered by GPT-4o-mini. It’s now on the App Store, but I want to be upfront—it’s still very much in its early stages, with a lot more to go. I was diagnosed with Type 1 diabetes while rowing competitively, and that moment changed everything. It wasn’t just the practical challenges of managing insulin, carb counts, and blood sugars; it fundamentally shifted how I see myself and the world. It forced me to slow down, prioritise my…
The App I Built to Help Manage My Diabetes launched on November 18, 2024 with 185 votes, #220 of 4,990 launches that month and more than 95% of that year's launches. The site was not reachable when checked in September 2026.
In plain words
Islet is a diabetes management app available on the App Store that uses AI to help users track and manage their condition. Built by Joshua, a student with Type 1 diabetes, the app assists with monitoring insulin, carbohydrate counts, and blood sugar levels. Still in early development, it leverages GPT-4o-mini to provide support for the practical and personal challenges of living with diabetes.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN, I’m Joshua, a student, and I’m excited (and a little nervous) to share something deeply personal that I’ve been working on: Islet, my diabetes management app powered by GPT-4o-mini. It’s now on the App Store, but I want to be upfront—it’s still very much in its early stages, with a lot more to go. I was…
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GlycemicGPT – Open-source AI-powered diabetes managementMay 2026 · github.com · ▲64I'm a Type 1 diabetic and software engineer. Last year I went months between endocrinologists with no clinician reviewing my data. I'm an engineer, so I built the tool I needed — and now I'm open sourcing it. GlycemicGPT is a self-hosted platform that connects continuous glucose monitors, insulin pumps, and existing Nightscout instances to an AI analysis layer running on your own infrastructure. Data sources: Dexcom G7 (cloud API) Tandem t:slim X2 and Mobi pumps (direct BLE) Nightscout (point it at your existing instance and you're running in minutes) What the AI layer does: Daily briefs…
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