The best blood sugar tracking app depends on the job you need it to do. Some apps are broad diabetes platforms with connected devices, food databases, and care-team workflows. Some are simpler logs for manual fingerstick readings. Those are different products, even when they appear in the same App Store search.
This comparison covers five iPhone apps:
- Vakaa
- mySugr
- Glucose Buddy
- Glucose | Blood Sugar Tracker
- Glooko
Facts were checked against the US App Store listings on July 4, 2026. App features, privacy labels, prices, and regional availability can change, so this roundup should be re-verified every six months.
Quick picks
| If you want… | Start with… | Why |
|---|---|---|
| Fast manual logging with no account requirement | Vakaa | Focused logbook, visible units, meal timing, local-first storage |
| Connected Accu-Chek ecosystem and a large diabetes tracker | mySugr | Accu-Chek meter integrations and broader diabetes data features listed |
| Broad diabetes tracking with carbs, medication, activity, reports, and Dexcom | Glucose Buddy | Large feature set and integration claims on the App Store listing |
| A broad tracker with iPad, Apple Watch, iMessage support signals | Glucose | Blood Sugar Tracker |
| Device sync and care-team collaboration | Glooko | Listing describes 200+ compatible devices and ProConnect care-team sharing |
Comparison table
As of July 2026:
| App | Best fit | Strengths | Tradeoffs to check |
|---|---|---|---|
| Vakaa | Manual fingerstick logging, pregnancy routines, prediabetes sprints, privacy-first logs | Fast entry, visible mg/dL and mmol/L, no account required, local-first, no ads, doctor-ready exports | Newer app with fewer integrations and a smaller review footprint |
| mySugr | People in the Accu-Chek ecosystem or wanting a broader diabetes app | Connected devices, Apple Watch, reports, selected CGM-related features, large review base | Larger account-backed ecosystem; PRO subscription for advanced features |
| Glucose Buddy | Users who want glucose, carbs, medication, activity, food, and reports together | Food database, Apple Health, Dexcom integration, PDF/CSV reporting, mg/dL and mmol/L support listed | Broader entry flow may be heavier than a simple logbook; App Store listed advertising content |
| Glucose | Blood Sugar Tracker | Users wanting a general glucose tracker with multi-device support signals | iPhone, iPad, Apple Watch, iMessage listed; trends, reminders, A1C estimate, reports |
| Glooko | Users with connected diabetes devices or care-team workflows | More than 200 device compatibility claim, care-team sharing, BGM/pump/CGM sync, Apple Health/Fitbit/Strava listed | More platform-like than a lightweight manual logbook; availability varies |
1. Vakaa
Vakaa is the focused option in this list. It is a blood sugar logbook for iPhone, not a glucose monitor. It does not measure glucose and does not claim to replace a meter, CGM, or clinical care.
The app is built around the minimum useful manual entry: value, timestamp, unit, and meal timing. That makes it a fit for people who need a clean record without a giant diabetes dashboard: Type 2 manual fingerstick logging, gestational routines, prediabetes tracking sprints, and caregiver records.
The privacy posture is also different from many larger health apps. Vakaa is local-first, has no account requirement for the core logbook, and does not use ads. Manual logging, recent history, recent Trends, meal response, time-in-range context, and full JSON backup stay free. Premium unlocks older Logs history, longer Trends, full stats, PDF reports, CSV export, widgets, and Apple Health sync.
Start with the guide to a blood sugar log on iPhone or download the printable blood sugar log template if you want to test the routine on paper first.
2. mySugr
mySugr is a stronger fit for people who want a large diabetes tracking ecosystem. Its US App Store listing describes connected devices, integrations, manual entries, Accu-Chek meter connections, Apple Health, Apple Watch, PDF and Excel reports, reminders, meal photos, and selected SmartGuide glucose insight functionality in selected countries.
That makes mySugr a real contender if compatible device support is your priority. It is not trying to be only a small manual logbook. It is closer to a diabetes data home.
Read the direct Vakaa vs mySugr comparison if you are deciding between those two specifically.
3. Glucose Buddy
Glucose Buddy is another broad tracker. Its US App Store listing describes blood sugar, medication,
A1C, weight, carb intake, meals, insulin, daily health metrics, reports, Apple Health integration,
Dexcom integration, mg/dL and mmol/L support, and Premium features.
It may fit people who want to log many health and diabetes metrics in one place. The tradeoff is that a broad tracker can feel heavy if all you need is glucose value, unit, time, and meal timing.
Read the direct Vakaa vs Glucose Buddy comparison for more detail.
4. Glucose | Blood Sugar Tracker
Glucose | Blood Sugar Tracker is a general glucose tracking app with a large review footprint. Its US App Store listing describes logging data, identifying trends, tagging by time of day and before/after meals, reminders, filters, graphs, reports, A1C estimation, and tracking insulin, medication, blood pressure, carbohydrates, weight, and ketones.
The listing also shows iPhone, iPad, Apple Watch, and iMessage support. Pricing appears across multiple listed in-app purchase entries, so verify the exact offer in the App Store purchase sheet before subscribing.
5. Glooko
Glooko is the most platform-like option in this roundup. Its US App Store listing describes a diabetes management platform, care-team collaboration, ProConnect codes, reports and charts, and syncing data from more than 200 diabetes and health monitoring devices, including blood glucose meters, insulin pumps, CGMs, smart scales, fitness apps, and activity trackers.
That is powerful if your main need is device sync or care-team connectivity. It may be more than you need if your current workflow is manual fingerstick logging a few times per week.
How to choose
Use the app that matches the actual logging job:
- If you need connected-device sync, start with Glooko, mySugr, or the app tied to your device.
- If you need carbs, medication, activity, and glucose in one daily tracker, look at Glucose Buddy or Glucose | Blood Sugar Tracker.
- If you need a clean manual logbook with fast entry, visible units, and privacy-first storage, look at Vakaa.
The most feature-rich app is not automatically the right one. A blood sugar log only helps if the entry flow is light enough to keep using.
Sources checked: mySugr, Glucose Buddy, Glucose | Blood Sugar Tracker, Glooko, and the current Vakaa site/app positioning.