Blood Sugar Diary - zerospike

Log a blood sugar reading in seconds and keep glucose, meals, insulin and medication in one private diary. No account needed: your entries are stored on your phone. For anyone living with type 1, type 2 or gestational diabetes, keeping an eye on prediabetes, or logging with no diabetes type at all. AN ENTRY IN SECONDS - Glucose in mg/dL or mmol/L, tagged fasting, pre-meal, post-meal (2h) or bedtime. - The insulin you took: your own basal and bolus products, premixed on its own row. You type the units; the app keeps the record. - Pills in one tap, with a daily reminder if you like. - 1000+ foods with carb counts: scan a barcode, pick a favorite or add your own. - Tap "I started eating" and a 120-minute countdown starts on the dashboard. Started late? It counts what is left. REVIEW YOUR HISTORY - A color-coded journal with a daily chart. Edit or swipe to delete, with undo. - Insights (Pro): time in range, a typical day from all your readings (AGP), an A1C estimate from your average (GMI), 30 and 90-day views and a weekly digest. A 7-day view is free. - Meal response (Pro): the 3-hour curve after a meal, next to earlier logs of the same food. - A doctor-ready PDF for any date range (Pro), made on the phone. SPIKE, YOUR IN-APP ASSISTANT (OPTIONAL) - Ask about diabetes in general or about the app. Answers stream in, with sources and quick actions. - If you turn it on, Spike can describe a summary of your last 14 days. It is computed on your phone, sent only with your questions and not stored on our server. - Spike does not give medical advice. A few questions a day are free; Pro raises the limit. INJECTION SITE ROTATION - A mirrored body map of your logged injections, with notes on how quickly each region typically absorbs. With Pro, it marks the spot unused the longest. SIMPLE VIEW - No diabetes type to pick? Choose that option at setup and the insulin screens stay hidden: a plain journal of glucose and meals. ADA and CDC reference pages are linked; the app scores nothing. STAY ON SCHEDULE - Up to 10 reminders for glucose, medication, basal or your own text, with a ready-made set at setup. - On iOS 26, a reminder you set can ring out loud, even on silent, and so can the post-meal timer; one tap turns it back into a notification. - Live Activity, home and lock screen widgets, and two Control Center controls on iOS 18: see the last reading, log in one tap, start the timer. - Apple Watch: your last reading in your own target colors and a countdown to the next reminder, also as a complication. MORE - Extra profiles for the people you care for (Pro), each with its own log and reminders. - Apple Health: writing hand-entered readings is free, only with your permission; importing glucose is Pro. - 9 languages, with full right-to-left layout for Arabic. - Privacy: usage analytics are optional and off by default. They use a random install ID, never your name or e-mail. Turn them on or off in Settings. PRO AND THE FREE TRIAL Pro is a monthly or yearly subscription, or a one-time lifetime purchase. The yearly plan starts with a 7-day free trial for new subscribers: cancel at least 24 hours before the trial ends to avoid the charge. Subscriptions renew automatically unless cancelled at least 24 hours before the period ends; cancel anytime in your Apple Account settings. Download zerospike, make your first entry today, and try Pro free for 7 days when you want the long view. zerospike is a personal tracking logbook. It is not medical advice and not a medical device. Decisions about your care stay with your healthcare team. Privacy Policy: https://greeneyeapp.com/en/legal/zerospike-privacy Terms of Use (EULA): https://greeneyeapp.com/en/legal/zerospike-terms