Track blood pressure, blood sugar, weight and blood oxygen for yourself or your family — offline and without an account.

CardioLog combines a blood pressure tracker, blood sugar log, weight tracker and manual SpO2 diary. Record readings from your own devices, review trends and prepare reports for healthcare appointments.

Core logging is free and ad-free. Optional CardioLog Pro adds expanded family-profile access, advanced BP and sugar trends, deeper reports, and higher guided-session and PDF-export allowances.

TRACK FOUR HEALTH METRICS

• Blood pressure: record systolic, diastolic and optional pulse.
• Blood sugar: log glucose in mg/dL or mmol/L with fasting, before-meal, after-meal or bedtime context.
• Weight: record in kilograms or pounds and follow changes over time.
• Blood oxygen (SpO2): manually record oxygen saturation and optional pulse from an external pulse oximeter.

Save measurement times and private notes. Add supported context to BP and blood sugar readings. Review your history and edit entries when needed.

GUIDED BP SESSIONS

Record two or three readings with a built-in rest timer. CardioLog saves their average as one session and keeps the individual readings together.

WEIGHT AND ADULT BMI

Review weight history and trends in your preferred units. With height and age information, CardioLog displays a BMI estimate for adults aged 20 and older.

BMI is a general screening measure, not a diagnosis or weight-loss recommendation.

TRENDS AND REPORTS

Review BP and blood sugar charts across 7-day and 15-day periods. Pro adds 30-day charts and advanced analysis. Weight and SpO2 include free basic trend summaries. Available chart ranges and access are shown in the app.

View weekly summaries and selected-period reports with recorded averages, reading breakdowns, weight changes and SpO2 summaries where enough data is available. Pro adds deeper BP and sugar analysis and period comparisons.

PDF AND CSV EXPORT

Prepare PDF reports with readings, summaries and charts for healthcare appointments. Share by email, messaging or print.

Free users receive limited PDF export. Pro includes deeper report sections and unlimited PDF export. CSV export is available to all users.

FAMILY PROFILES

Keep each person's readings, trends and reports separate. Choose the metrics to track for each profile. Pro expands family-profile access.

BP AND BLOOD SUGAR REMINDERS

Set local reminders and review your BP and blood sugar logging rhythm and streaks. Pro adds smart reminders and follow-ups. Weight and SpO2 have no reminders and do not contribute to streaks.

FREE TO START

• Core BP, blood sugar, weight and SpO2 logging
• Reading history and basic charts
• BP and blood sugar reminders
• CSV export and limited PDF export
• No third-party ads

OPTIONAL CARDIOLOG PRO

• Expanded family-profile access
• Higher guided BP session allowance
• 30-day BP and blood sugar charts
• Advanced analysis and deeper report sections
• Period comparisons and unlimited PDF export
• Smart reminders and follow-ups

PRIVACY BY DESIGN

Health records are stored locally on your device. No account is required, and CardioLog does not sync your health records to a cloud service.

Limited operational analytics and crash reporting help improve the app. They do not include health readings, profile names, reading notes or report content.

Optional feedback survey responses are sent to help improve CardioLog. See the Privacy Policy for details.

IMPORTANT

CardioLog and your phone do not measure blood pressure, blood glucose, weight or oxygen saturation. Manually enter readings from a blood pressure cuff, glucose meter, scale or pulse oximeter.

CardioLog is not a medical device and does not diagnose, treat, cure or prevent any medical condition. Reference information and BMI estimates are general educational information, not personalized medical advice.

Consult a qualified healthcare professional for medical advice, diagnosis and treatment.