Blood Sugar Tracker

Blood Sugar Tracker is a private, local-first diabetes management app designed for people who want complete control over their health data. No account required. No cloud sync. Your readings never leave your device.

**WHY BLOOD SUGAR TRACKER?**

Unlike other diabetes apps that require sign-ups, subscriptions, or cloud access, Blood Sugar Tracker works entirely offline. Your glucose readings, insulin logs, and meal data are stored securely on your device using a high-performance local database.

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**KEY FEATURES**

🩸 **Blood Sugar Logging**
• Log readings in mg/dL or mmol/L
• 7 reading types: Fasting, Pre-meal, Post-meal (1h & 2h), Bedtime, Random, Exercise
• Context tags: Stressed, Sick, Exercise, Alcohol, Travel, High fat, High carb, Fasting, Hot weather, Poor sleep
• Custom notes on every entry

💉 **Insulin Tracking**
• Log Rapid acting, Regular, Long acting, Ultra-long acting, and Mixed insulin
• Brand tracking (Apidra, Humalog, Lantus, and more)
• Injection site logging (optional)
• Insulin on board (IOB) calculation with decay timer

🍽️ **Meal & Medication Logging**
• Log meals with carb estimates
• Track medications alongside glucose data

📊 **Smart Charts & Analytics**
• Daily glucose curve with color-coded in-range/high/low data points
• Target range band overlay
• Weekly stacked Time-in-Range (TIR) bar chart by day
• Historical day-by-day summary view
• Average glucose, Coefficient of Variation (CV%), and Estimated A1C (ADAG formula)

🏠 **Intelligent Dashboard**
• Last reading with status badge (In range / Above range / Below range)
• Today's Time in Range at a glance
• Insulin on Board widget with countdown timer
• Pattern Insights (AI-detected trends)
• 30-day rolling summary: Avg glucose, Est. A1C, CV%

📋 **Full History Log**
• Searchable and filterable log of all entries
• Filter by type: Blood sugar, Insulin, Meals, Medications
• Color-coded value display (green = in range, amber = high, red = low)

🔒 **Privacy First**
• Zero account required — no email, no password
• No cloud sync, no server, no data sharing
• All data stored locally with Drift/SQLite database
• Works 100% offline

🌍 **17 Language Support**
• Fully localized interface for global users

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**PERFECT FOR:**
✓ Type 1 diabetics tracking daily insulin and glucose
✓ Type 2 diabetics monitoring diet and medication response
✓ Pre-diabetics tracking trends without a doctor visit
✓ Anyone who values health data privacy

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*Blood Sugar Tracker does not provide medical advice. Always consult your healthcare provider for medical decisions.*