Last updated: 19 July 2026
Blood Sugar Log (“the App”) is designed with privacy in mind. This Privacy Policy explains what information is stored, how the App works, and what data may be processed by third-party services.
Your blood sugar readings and notes are stored only on your device.
The App has no user accounts and no backend server.
We do not collect, store, or access your health data.
Your data leaves your device only when you choose to export, share, or back it up.
The free version displays advertisements through Google AdMob, which may collect certain device and usage information to provide ads.
Purchasing Pro removes advertisements and associated ad-related data collection.
The App stores the following information locally on your device:
Blood glucose readings
Date and time of readings
Context tags
Optional carbohydrate, insulin, and note entries
Target ranges
Reminder settings
User preferences and app settings
This information remains in the App’s private storage and is not transmitted to us.
The free version of Blood Sugar Log uses Google AdMob to display advertisements.
Google’s advertising services may collect and process information such as:
Device identifiers
Advertising identifiers
App usage information
Diagnostic information
This processing is governed by Google’s own privacy policies.
Where required by law, the App requests consent for personalized advertising through Google User Messaging Platform (UMP). You can review or change your advertising preferences at any time through:
Settings → Ad Privacy Options
Useful links:
Google Privacy Policy: https://policies.google.com/privacy
How Google uses information from apps and websites: https://policies.google.com/technologies/partner-sites
Purchasing Pro removes all advertisements and related ad-data collection within the App.
In-app purchases are processed through Google Play Billing.
We do not receive, store, or have access to your payment card details or billing information. Payment processing is handled entirely by Google according to Google Play’s terms and privacy practices.
If you enable reminders and grant notification permission, the App schedules notifications locally on your device.
No notification data is transmitted to us or stored on external servers.
Blood Sugar Log is intended for a general audience and is not specifically directed at children.
We do not knowingly collect personal information from children.
You can:
Export your data at any time.
Create and restore backups.
Delete individual readings.
Clear all App data through your device settings.
Purchase Pro to remove advertisements.
Manage advertising consent through Settings → Ad Privacy Options (where available).
Blood Sugar Log is a personal logging tool for information entered by the user.
The App does not measure blood glucose levels, is not a medical device, and does not provide medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional regarding medical decisions.
If you have any questions about this Privacy Policy, please contact:
appsparkno@gmail.com