SugarGlass: Glucose Log
Blood sugar, carbs & insulin
Only for iPhone
Free
iPhone
Glucose, carbs and insulin in one diary: charts, time in range and targets with links to clinical guidelines. No ads or sign-up; your data stays on your iPhone.
SugarGlass is a blood glucose diary for people with type 1 and type 2 diabetes. Log readings, carbs and insulin in a few taps and see how your glucose changes by day, by hour and by time of measurement.
Important: SugarGlass does not replace your doctor. Seek your doctor's advice in addition to using this app and before making any medical decisions, such as changing doses, diet or treatment.
DIARY
• Your latest reading, big and color-coded, with the change since the previous one
• A 24-hour sparkline and today at a glance: average, readings in range, carbs and insulin
• Measurement context: fasting, before meal, after meal, bedtime, night
• Undo delete, swipe to edit
QUICK LOGGING
• Glucose with a meter-style ruler or the keyboard
• Carbs in grams or bread units
• Rapid- and long-acting insulin with the names of your medications
• A note on any entry
CHARTS AND STATISTICS
• Periods: 24 hours, 7, 14, 30 and 90 days
• Readings by range following the international consensus: very low, low, in range, high, very high
• Estimated A1c, glucose variability (CV) and number of lows
• Typical day: every reading on one 24-hour axis with the median and spread
• Average by time of measurement compared with your targets
• Daily insulin and carbs
• A PDF report for your doctor for the selected period: key numbers, typical day, daily totals and the logbook
TARGETS
• ADA Standards of Care 2026
• Russian clinical guidelines, where glucose targets follow the individual A1c target set by your doctor
• Softer targets for older adults and high risk of lows — or your own
REMINDERS
• Scheduled checks, a check 1–2 hours after meals and your basal insulin dose
• Tap a reminder to open a new entry with the right context
APPLE HEALTH
• Save glucose, carbs and insulin to Health
• Import glucose from Health, for example from CGM apps
PRIVACY
• No account, no ads
• Your diary stays on your iPhone; the PDF report and CSV export are built on the phone, and CSV import moves your diary to a new iPhone
• Anonymous usage statistics without readings, doses or diagnosis; turn them off in Profile
Made for iPhone Duo: on the inner display your diary, charts and profile open into two columns in every pose.
mg/dL and mmol/L, light and dark mode, VoiceOver and Dynamic Type.
Sources for ranges, goals and formulas — clinical guidelines and studies with links — are right in the app: the Sources button in Charts, Targets, About and the end of the PDF report.
SugarGlass is not a medical device. It does not diagnose and does not calculate insulin doses. Make treatment decisions with your doctor.
Terms of Use: https://sugarglass.su/docs/terms.html?lang=en
Privacy Policy: https://sugarglass.su/docs/privacy.html?lang=en
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• PDF report for your doctor: the Share button in Charts builds a report for the selected period — key numbers, typical day, daily totals and the logbook. Send it to your doctor or print it.
• A cleaner Charts screen: the sources for the numbers are behind the Sources button.
• Chart labels no longer fade when you switch between light and dark mode.
The developer, Maksim Protsenko, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Maksim Protsenko
- Size
- 7 MB
- Category
- Medical
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later.
- iPhone
- Languages
- English and Russian
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- Copyright
- © 2026 Maksim Protsenko