Glucose Diary - Daily Tracker
Daily blood sugar tracker
Free · Designed for iPad. Not verified for macOS.
Auto-classify readings by meal context. Trend chart with target-range guides. Estimated A1C after 14+ days. 100% on-device — no account, no cloud.
One reading at a time — Glucose Diary is the simplest, most accurate way to track blood glucose for diabetes management and prevention.
▶ Record readings with their meal context
Fasting · Pre-meal · 2h post-meal · Bedtime · Random — thresholds for "normal" differ by context, so each entry is auto-classified by when it was taken.
▶ Trend at a glance
A smooth line chart visualizes your glucose over time, with target-range guides (70-180 mg/dL) that make trends easy to read.
▶ Estimated A1C (after 14+ days)
Based on the ADA average-glucose-to-A1C conversion. A useful self-monitoring proxy between lab visits.
▶ Choose your classification standard
Korean Diabetes Association (KDA) or American Diabetes Association (ADA) — match whichever your doctor uses. Your raw data is unchanged when you switch standards; only the labels are recomputed.
▶ Categories (auto-applied per meal context)
• Severe low (under 54 mg/dL)
• Low (54-69)
• Normal — context-specific threshold
• Pre-diabetic (IFG / IGT)
• Diabetic
• Severe high (300 or higher)
▶ Activity, feeling, and medication tags
After exercise · After alcohol · Traveling · Tired · Stressed · Sick · After insulin — common contexts are one tap; create your own tags as needed.
▶ Calendar view
Month calendar with category-colored dots — see at a glance which days you logged and how each reading fell.
▶ Reminders
Up to 3 daily measurement reminders at the times and weekdays you choose. Scheduled locally on the device — no internet required.
▶ Export and backup
CSV export to share with your doctor; full JSON backup and restore for moving between phones.
▶ 100% on-device — no internet, no account
Every reading is stored in a local SQLite database. Nothing leaves the device. No sign-up required. Your health data stays yours.
▶ Korean and English
Auto-detects from system locale, or pick manually in Settings. Dark mode supported.
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Note — This app is a self-monitoring diary, not a medical device. The displayed categories and estimated values are reference indicators only and do not replace medical judgment. Discuss any diagnostic or treatment decisions with your physician.
Classification sources:
• Korean Diabetes Association (KDA, 2023): https://www.diabetes.or.kr
• American Diabetes Association — Standards of Care in Diabetes (2026)
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
App display name now follows your device language (English: Glucose Diary, Korean: 혈당 다이어리).
The developer, SiU Ahn, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SiU Ahn
- Size
- 32.6 MB
- Category
- Medical
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPad
Requires iPadOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English and Korean
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
Advertising
Health or Wellness Topics
- Copyright
- © 2026 SiU Ahn