PrediabetesOS

A prediabetes prevention planner in one private offline app. Seven tabs. One file. Yours forever for one price. Built for the millions of people sitting in the prediabetic range right now - A1C between 5.7 and 6.4, fasting glucose 100-125, the doctor said "watch it" and walked out of the room. This planner is the watching. Prevention works. Lifestyle medicine reverses prediabetes in months, not years, and the data behind it is overwhelming - the Diabetes Prevention Program cut Type 2 progression by 58% with weight loss and walking alone, beating metformin. This app gives you the system to do it. An A1C log with reversal trend chart that plots every reading against your target so you can SEE the line bending back down toward 5.6 - the moment your blood is no longer prediabetic. A T2D risk score using the ADA points formula (age, gender, family history, gestational diabetes, hypertension, activity, BMI) so you know your real number, not a vibe. Ten evidence-based prevention plays, one tap each: 16-hour intermittent fasting window, vinegar shot before carb-heavy meals, 10-minute walks within 30 minutes after eating, twice-weekly strength training to grow glucose-hungry muscle, fiber-first plates (veggies before everything), 7+ hours of sleep (poor sleep spikes morning glucose), stress down-shifts (cortisol drives insulin resistance), sauna or hot bath sessions for heat shock protein response, hydration before coffee, and Zone 2 cardio twice a week. A daily winnings tracker with streak counter so the small wins compound. Eight anti-inflammatory reversal recipes (turmeric salmon plate, lentil power soup, Greek yogurt berry bowl, sardine avocado toast, walnut oatmeal, veggie-first stir fry, kefir smoothie, dark chocolate almond snack). Settings for target A1C goal, target weight, fasting glucose log, BMI tracker, JSON export and import, full reset. Every input saves locally to your device. Nothing goes to a server. No account, no subscription, no app store, no annual fee, no health data sold to advertisers. Works on laptop in any browser, and adds to your iPhone or Android home screen as a standalone app for offline use.

WHAT'S INCLUDED

• 7 tabs: Today, A1C Log, Plays, Winnings, Risk, Recipes, Settings
• A1C reversal trend chart - watch the line bend back below 5.7
• T2D risk calculator with ADA points formula (age, BMI, family hx, BP, activity)
• 10 evidence-based prevention plays (16h fast, vinegar, walks, lifting, fiber-first, sleep, stress, sauna, hydration, Zone 2)
• Daily winnings tracker with streak counter
• 8 anti-inflammatory reversal recipes
• Lifestyle medicine focus - prevention beats medication 58% (DPP study)
• Target A1C goal toggle - set the number you are walking toward
• Target weight tracking (optional, weight loss is the #1 lever)
• Fasting glucose log with weekly check-ins
• BMI tracker with prediabetic range markers
• Sleep + stress note (poor sleep raises fasting glucose)
• PCOS-aware: insulin resistance driver overlap
• Settings: A1C goal, weight goal, JSON export / import / reset
• 100% private - data never leaves your device
• Single HTML file - laptop + iPhone + Android home screen, fully offline

100% PRIVATE AND OFFLINE

Your A1C, glucose, weight, and lifestyle data never leaves your device. No account, no cloud, no analytics, no tracking. All your readings, plays, winnings, and risk scores live only on this device. Works completely offline.

WORKS ON ALL DEVICES

Open on laptop, add to home screen on iPhone (Safari) or Android (Chrome) as an app. One file, all devices.

INSTANT DOWNLOAD

Download once, use forever. No subscription, no renewal, no expiry.

PERFECT FOR

• Pre-diabetics with A1C 5.7-6.4 or fasting glucose 100-125
• Metabolic syndrome women managing weight, lipids, blood pressure together
• PCOS-aware lifestyle changers tackling insulin resistance
• Fatty liver pre-diagnosis crowd (NAFLD overlap with prediabetes)
• People with family history of Type 2 diabetes
• Anyone whose A1C is creeping up year over year and wants to bend it back

Questions? Message us on Etsy - we reply within 24 hours.

Disclaimer: Not medical advice. For prediabetes management see your endocrinologist or primary care provider. This is a personal lifestyle planning tool.