A blood sugar app
that isn't annoying.

For people who use a basic meter and just want to log a number. No Bluetooth pairing, no connected devices. Enter your reading and save it in seconds.
Free.

Download on the App Store
iPhone
iPad
Apple Watch
One Tap Blood Sugar welcome screen

No carb calculators. No 47-field food diary.

Enter your number, tap the meal timing, and save.

Log blood sugar in 10 seconds
Log in Seconds
Enter your reading and save.
Blood sugar history grouped by day with colour coding
Track Your History
Colour-coded and grouped by day.
Blood sugar trends chart with A1C estimate
See Your Trends
Weekly, monthly, and all-time views.

Right from your wrist.

Log your blood sugar from your Apple Watch without reaching for your phone. Pick your number, tap your meal timing, save. Syncs instantly to your iPhone and iPad via iCloud.

Digital Crown to adjust, one tap to save
iCloud sync across all your devices
Meal timing built in: Fasting, Before, After, Bedtime
One Tap Blood Sugar on Apple Watch

What it does.

Log in Seconds

Enter your reading and save it in seconds.

See Your Trends

Colour-coded charts that are clear at a glance.

Doctor-Ready PDF

A PDF your doctor can actually read. No paywall.

mg/dL or mmol/L

Toggle between units in settings. Both work the same way.

Your Data Follows You

Syncs across iPhone, iPad, and Apple Watch. Switch phones and nothing is lost.

Easy to Read

Large numbers and high contrast so you can read it without squinting.

Every diabetes app is built for Type 1.
90% of diabetics are Type 2.

If you're Type 2, you don't need an insulin calculator. You don't need CGM integration. You don't need bolus ratios or carb databases with 40,000 entries.

You need to log a number. See if it's trending up or down. Show your doctor at your next appointment.

That's it. That's the whole app. And it shouldn't make you feel stupid for not understanding features you were never going to use.

There are apps that sync with Bluetooth meters and CGMs. They're great if that's your setup. But if you're the person with a $20 meter from the chemist who just wants somewhere to write down the number, those apps aren't built for you. This one is.

How it works.

Price
Free with no subscription and no ads.
Input
Type your number, pick the meal timing, and save.
Devices
No Bluetooth required. Works with any meter.
Doctor visits
One-tap PDF export, included for free.
Your data
Stored in your iCloud. We never see it.
Sync
iPhone, iPad, and Apple Watch. Switch phones and nothing is lost.
"She just wanted to write down
three numbers a day."

Frequently Asked Questions

How much does it cost?
Free. No subscriptions, no in-app purchases, no ads. Every feature is included from day one.
What units does it use?
Both mg/dL and mmol/L. Toggle between them in settings. The app converts and displays your readings in whichever unit you prefer.
Does it estimate A1C?
Yes. Based on your logged readings, the app calculates an estimated A1C. It's not a replacement for a blood test, but it gives you a useful ongoing estimate between lab visits.
Can I export for my doctor?
Yes. One tap generates a clean, doctor-ready PDF with all your readings, averages, and trends. No paywall, no premium tier. It's included.
Is my data private?
Your data is stored on your device and in your personal iCloud account. We never see it, store it, or send it to third-party servers.
Do I need a CGM?
No. This app is designed for people who check their blood sugar with a finger-stick meter and log manually. No CGM integration needed or required.
Do I need a Bluetooth meter?
No. One Tap Blood Sugar works with any meter. You check your blood sugar the normal way, then type the number in. That's it. No pairing, no syncing, no compatible device list.
What devices does it work on?
iPhone, iPad, and Apple Watch. Requires iOS 17 or later, which supports iPhones and iPads from 2018 onwards.
Free
No subscription and no ads.

Download on the App Store

Available on iPhone, iPad, and Apple Watch.

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