zerospike: Blood Sugar Diary

Reminders you set can ring as real alarms on iOS 26, audible even on silent. Log glucose, meals and insulin in seconds and share a doctor-ready PDF. Private, on device.

Log a blood sugar reading in seconds, and keep glucose, meals, insulin and medication in one private diary. No account and no cloud; your health records stay on your phone. Whether you're living with type 1, type 2 or gestational diabetes, keeping an eye on prediabetes, or tracking without a diagnosis, zerospike keeps your daily log simple.

LOG IN SECONDS

Record glucose in mg/dL or mmol/L with period tags: fasting, pre-meal, post-meal (2h) and bedtime Log insulin doses and meals in a few taps Log the pills you take with one tap and set a daily reminder Food database of 1000+ items with barcode scanning, carb counts, quick add and favorites Tap "I started eating" to start a post-meal timer, shown live on your dashboard REVIEW YOUR HISTORY

Color-coded journal and a daily chart Insights (Pro): time in range, ambulatory glucose profile (AGP), estimated A1C (GMI), plus 30 and 90 day trends and a weekly digest Doctor-ready PDF report for any date range you choose Meal response: see the 3-hour course after a meal; compare with your past logs of the same food (Pro) INJECTION SITE ROTATION

A body map of the injections you have logged See the point you have not used for the longest time Neutral notes on typical absorption speed by body region TRACKING WITHOUT A DIAGNOSIS

Not diagnosed? Choose "No diagnosis" during setup and insulin screens stay hidden Keep a simple journal of glucose and meals, with fasting and post-meal tags Reference pages from ADA and CDC, linked inside the app Bring a doctor-ready PDF of your log to your next visit STAY ON ROUTINE

Reminders you set can ring as real alarms on iOS 26 and later, audible even in silent mode; one tap switches any of them back to a notification The post-meal timer can also ring as a real alarm on iOS 26, at the end time you choose Post-meal countdown on the iOS Live Activity, plus a home-screen and lock-screen widget that shows your last reading and next reminder Reminders at times you choose Start from a ready-made reminder set at setup, then change the times however you like The Reminders screen shows everything coming up in the next 24 hours MORE

Multiple profiles for caregivers and family Apple Health (Pro): read your glucose readings into the journal; optionally write what you log back to Health Available in Turkish, English, German, Spanish, French, Italian, Portuguese, Arabic and Japanese Download zerospike, make your first entry in under a minute and bring a clear log to your next appointment.

zerospike is a personal tracking logbook. It is not medical advice and not a medical device. Always decide treatment with your healthcare team.

Pro plans: monthly, yearly (7-day free trial) or a one-time lifetime purchase.

Privacy Policy: https://greeneyeapp.com/en/legal/zerospike-privacy Terms of Use (EULA): https://greeneyeapp.com/en/legal/zerospike-terms