Blood Sugar Diary: Log
Glucose Tracker for Diabetes
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Type the number from your meter. See where it sits against the ADA targets, watch your averages and estimated A1C, and hand your doctor one clean page.
Blood Sugar Diary is a place to keep your glucose readings and turn them into
something a doctor can actually use.
You read the number off your own meter and type it in. The app tells you where
it sits against published targets, keeps the history, and turns it into a single
page you can hand over at your next appointment.
WHAT IT DOES
Understand the number
Every reading is placed against the American Diabetes Association targets for
people with diabetes, or against the ADA diagnostic ranges if you are tracking
before any diagnosis. You choose which table, and the app names the one it used.
mg/dL or mmol/L, whichever your meter shows.
Context that makes a reading make sense
Fasting, before a meal, after a meal, bedtime. Tag a reading in one tap, like
after exercise or stressed, and add a note for insulin, carbs or anything else
you want your doctor to see.
Your averages, honestly
Average, lowest, highest, time in range and the change against the period before,
over 7, 14, 30 or 90 days. Averages by context and by tag, so "165 after pizza"
sits beside your overall average. An estimated A1C once there is enough data to
be honest about, clearly marked as an estimate and not a lab result.
One page for your doctor
Share a PDF straight from the share sheet: every reading grouped by day and
context, your averages, and the range table used. Or export everything as a CSV.
Reminders that know when to stop
A reminder stays quiet on a day you have already logged that half of the day.
WHAT IT DOES NOT DO
It does not measure your blood sugar. No phone can, and no app on a phone can.
You need a meter. This app is the notebook, not the instrument.
It does not diagnose anything and it does not tell you what to take. It places
numbers against a published table and prints them. Talk to your doctor about
what to do.
YOUR DATA STAYS ON YOUR PHONE
There is no account and no sign-up. Your readings are never uploaded, and there
is no server holding them. No advertising, and no tracking of any kind.
If you buy Pro, Apple handles the payment and a service called RevenueCat checks
whether it is active. It sees a random identifier and the receipt, never a
reading, a date or a note.
FREE, AND PAID
Entering readings, your full history, every statistic, both range tables, both
units, tags, notes and reminders are free, and stay free. They are never locked.
Pro adds the doctor-ready PDF and the CSV export.
You are shown the offer at most twice, and never more than that. No ads, ever.
PRO
Pro Monthly, $2.99 per month. Pro Yearly, $9.99 per year. Pro Lifetime, $19.99
once. Prices are for the United States; elsewhere the local Apple price is shown
before you buy.
Monthly and yearly are subscriptions. Payment is charged to your Apple Account
when you confirm. A subscription renews automatically unless you cancel at least
24 hours before the current period ends. Manage or cancel it in your Apple
Account settings. Lifetime is a single payment and never renews.
Terms of Use (EULA):
https://rovcanin.dev/apps/terms
Privacy Policy:
https://rovcanin.dev/apps/blood-sugar-diary/privacy
Questions: the Support link on this page reaches a real person, and that person
built the app.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Tarik Rovcanin, 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:
- Purchases
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tarik Rovcanin
- Size
- 47.6 MB
- Category
- Medical
- Compatibility
Requires iOS 16.4 or later.
- iPhone
Requires iOS 16.4 or later. - iPad
Requires iPadOS 16.4 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Health or Wellness Topics
- In-App Purchases
Yes
- Yearly $9.99
- Lifetime $19.99
- Monthly $2.99
- Copyright
- © 2026 Tarik Rovcanin
