Privacy Policy

Sowda Insulin Calculator · Last updated: July 2026

What Data We Collect

This calculator collects and stores the following information:

• Blood glucose readings (mmol/L)
• Carbohydrate intake values (grams)
• Calculated insulin dose recommendations (units)
• Timestamps of each calculation
• Insulin sensitivity factor and carb ratio settings
• Last dose time and units (if provided by you)

Why We Collect This Data

Dose history is essential for:

• IOB (Insulin On Board) tracking — to prevent insulin stacking, which is the leading cause of severe hypoglycaemia
• Lockout enforcement — to prevent repeated dosing within a 60-minute window
• Clinical review — so you and your endocrinologist can review dosing patterns over time

How Your Data Is Stored

• Client-side: Dose history is stored in your browser's localStorage. This data never leaves your device unless you use the backend server.
• Server-side (optional): If connected to the Sowda Insulin Calculator API server, dose records are stored in a SQLite database on the server. This is accessible only to users with the shared password.
• Server records include: dose ID, user identifier, timestamp, blood glucose, carbs, calculated dose, IOB at calculation time, and whether the dose was taken.

Who Has Access

Only you (or users you share the calculator password with) have access to dose history. We do not share, sell, or disclose your health data to any third party. The calculator does not integrate with any analytics, advertising, or tracking services.

Data Retention

Client-side data remains in your browser's localStorage until you clear your browser data or manually delete it. Server-side data is retained until you delete individual records or the database file is removed. There is no automatic expiration.

Your Rights

You have the right to:

• View all stored dose records at any time (via the Dose History page)
• Export your data as a CSV file
• Delete individual dose records
• Clear all local data by clearing your browser's site data
• Request deletion of server-side data by contacting the calculator administrator

Medical Disclaimer

This calculator is NOT a medical device and is NOT a substitute for professional medical advice. Always consult your endocrinologist or diabetes educator before adjusting your insulin regimen. The calculator provides estimates based on standard formulas; it does not account for all individual factors. Insulin dosing errors can cause severe hypoglycaemia or hyperglycaemia.

Contact

For privacy-related inquiries, data deletion requests, or questions about this policy, contact the calculator administrator directly. Do not send personal health information via unencrypted email.

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