Blood sugar tracker app — glucose log and charts
Blood Snap is a free blood sugar tracker app for home glucometer readings. Log glucose in mmol/L or mg/dL by typing, voice, or photographing the meter screen — including Accu-Chek — then see charts and export a PDF. Not a glucometer, CGM, or medical device.
One glucose log next to blood pressure and weight
Separate sugar apps make clinic visits harder when your clinician also wants blood pressure and weight. Blood Snap keeps one diary: blood sugar levels you enter, meal context tags, and the same calm charts you use for blood pressure — without claiming to stream continuous glucose data.
What you get in the blood sugar tracker
- Glucose log — mmol/L or mg/dL, with fasting / before meal / after meal / bedtime tags.
- Snap entry — photograph a glucometer display; confirm OCR suggestions before save. Works without Bluetooth.
- Charts — 7-day, 30-day, and 3-month trends with average, min, and max of numbers you logged.
- Export — PDF or CSV from History for your doctor or spreadsheet.
- Pill reminder — medicine reminders in the same app as your glucose log.
How to log blood sugar in three steps
- Check glucose with your meter or CGM display (the app does not measure).
- Type, speak, or snap the number in Blood Snap and confirm before save.
- Review charts over time and export a PDF when you need a clean report.
Free printable glucose log
Prefer paper for a short stretch? Download the free printable blood sugar log (PDF). Switch to the app when you want reminders and charts on your phone.
Related guides
- Blood sugar log sheet vs app
- mmol/L vs mg/dL glucose log
- Accu-Chek snap log without Bluetooth
- Glucose chart trends from a home log
- Blood pressure tracker app
Blood Snap does not interpret readings. Quoted ADA or similar ranges on this site are general reference information only — always follow your clinician.