Comparison

Blood Pressure Tracker SmartBP vs QTc

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Blood Pressure Tracker SmartBP

Log, monitor, and analyze blood pressure and heart measurements. Automatically calculate BMI, pulse pressure, and mean arterial pressure. Share detailed reports with your doctor and track progress with clear graphs and statistics.

Highlights
  • Log systolic, diastolic BP, pulse, and weight
  • Automatic BMI, PP, and MAP calculation
  • Sync with Bluetooth BP monitors
  • Add notes and measurement tags
  • Share reports via email, SMS, Apple HealthKit
  • View 7, 14, 30-day summaries
  • Analyze progress with graphs and statistics
Features
Read full description

SmartBP® is a blood pressure app that enables you to log, monitor, evaluate, and share BP reports using iOS devices and Apple Watch. In addition, SmartBP connects with Apple Health. With your health information at your fingertips, you can now take a more active role in your own health. For those with prehypertension or hypertension, SmartBP can assist in monitoring progress, identifying trends, and managing all your blood pressure and heart measurements, ultimately aiming to enhance your overall heart health and blood pressure. SmartBP is a smarter way to manage your blood pressure measurements and track your progress. Disclaimer: 1) SmartBP al­lows you to record, track and an­a­lyze trends in your blood pres­sure. You can ei­ther man­u­al­ly en­ter your records or use a blood pres­sure mon­i­tor to sync with SmartBP through Apple Health. SmartBP alone does not mea­sure blood pres­sure. You need a sep­a­rate blood pres­sure mon­i­tor to mea­sure blood pres­sure. 2) SmartBP is NOT a substitute for a doctor or professional healthcare or advice. Any health related information provided is for informational purposes only and should not be used to replace the advice of healthcare professionals. 3) SmartBP Cloud Sync is not a replacement for backing up your health data. While we strive for the highest data security, no measures can ensure 100% protection. Regular data backups are the user's responsibility. For information on how to use the app, visit our website * Video: www.smartbp.app * FAQ: www.smartbp.app/faq Features- - Log your systolic, diastolic blood pressure, pulse rate and weight. Body mass index (BMI), pulse pressure (PP) and mean arterial pressure (MAP) is automatically calculated. You can manually enter measurements or seamlessly sync them with a supported Bluetooth BP monitors such as: * A&D * Omron * Beurer * Transtek - Quickly add notes (e.g. before dinner) and measurement information (e.g. sitting, left arm) using tags. - Store and access all your blood pressure measurements anywhere and anytime using Apple HealthKit. Avoid manual data entry and reduce errors by automatically uploading blood pressure measurements to HealthKit by auto-syncing with SmartBP. The following Blood Pressure Monitor Apps can connect to HealthKit (check for compatibility with different models): * A&D * Omron * iHealth * Withings - Share your blood pressure information with your doctor, healthcare provider or family using email, text message (SMS), Apple HealthKit. Create blood pressure reports in PDF format with blood pressure data, charts and stats and share with your doctor or healthcare provider. - View 7, 14, 30 day summary grouped by daily AM/PM averages and tags. Create, share and print summary PDF reports and CSV file. - Print PDF reports or charts directly - Analyze your progress through clear graphs and statistics (including mean and variability). Filter data using tags to assess lifestyle changes or medication effectiveness. Compare tagged graphs side by side and observe systolic vs. diastolic blood pressure correlations. - Track your Heart Rate trends - Sync ECG records - Back up your health data and access it on all your mobile devices with SmartBP Cloud. This is an optional service. We do not sell your health data. - Sync directly between iPhone and iPad through Bluetooth or WiFi without sharing on the cloud. - Back up blood pressure data by exporting to Dropbox, and Drive, or import from CSV files into the app. - Protect your data with TouchID, FaceID or Pin keypad protection. - Set medication reminders & track effectiveness. - Intuitive color coded data to identify normal, prehypertensive, stage I and II hypertension. These limits can be modified. Categorize your records based on 2017 ACA/AHA, 2023 ESC/ESH or create your own custom categories. - Create multiple user profiles and manage them from a single app/device. - US and international height and weight units supported.

About

QTc

This medical app calculates QTc using nine different formulas. It allows users to input heart rate or RR interval and QT interval length for quick results. An Apple Watch app is also included for convenient access.

Highlights
  • Nine QTc calculation formulas
  • Input heart rate or RR interval
  • Input QT interval length
  • Apple Watch app integration
  • No personal data collection
  • Offline functionality
Read full description

QTc Calculator corrects the QT interval for heart rate, with nine published formulas at once instead of just one. Bazett is still the formula most ECG machines use, but it overestimates the QTc at higher heart rates and underestimates it at lower ones. QTc Calculator shows you right away how the result changes with other formulas, and where it sits relative to published reference limits and population data. FORMULAS Bazett, Fridericia, Framingham, Hodges, Rautaharju (two versions), Mayeda, Kawataki and Goto, side by side. Choose which formulas you want to see and in which order. Each result comes with a chart of the QTc distribution in the general population (Vandenberk et al. 2016) and a short note on the formula's strengths and weaknesses. START FROM QT OR FROM QTc Enter heart rate (or RR interval) and QT, or start from a QTc printed by the ECG machine. The app calculates the QT back from the formula the QTc came from and converts it to all other formulas. J-POINT CALCULATIONS With a QRS duration, the app adds the JT interval, the heart-rate-corrected JTrr (Rautaharju) and the JTc of each formula. For wide QRS complexes, such as in bundle branch block, it shows QTmc (Bogossian). REFERENCE LIMITS Results are color-coded against the short and long QT limits of your choice: ESC 2022, ESC 2015, AHA 2009, ESC 2005, FDA 2005, Gollob 2011, Mazzanti 2014, Goldenberg 2006 (including limits for children and adolescents) and Schwartz 1985/1993. Separate limits for women and men. SCORES • Gollob Score for Short QT Syndrome • Long QT Score (Schwartz, as in the ESC guidelines 2022) • Tisdale Score for the risk of drug-induced QT prolongation in hospitalized patients All scores open with the points for the QTc you just calculated. BASELINE COMPARISON Enter a previous ECG as a baseline. The app marks it in every chart and tells you when the QTc has increased by more than 60 msec. MADE FOR DAILY USE • Plausibility checks catch typos and unusual values right below the input field. • Notices for heart rates outside the range where QTc formulas are most reliable. • A guide to measuring the QT interval correctly (threshold and tangent method). • Share or copy a summary of all results. • Two-column layout on iPad and on iPhone Duo when unfolded. • Color-blind mode (blue instead of green). • English and German. PRIVACY No account, no ads, no tracking. The app does not connect to the internet. Your inputs stay on your device. ALL SOURCES INCLUDED Every formula, limit and score names its literature source. All references are listed in the app. IMPORTANT QTc Calculator is a calculation and reference tool for healthcare professionals. It does not provide medical advice, diagnosis or treatment recommendations and does not replace clinical judgment. Please note: This app provides only information, is not medical or treatment advice and may not be treated as such by the user. As such, this App may not be relied upon for the purposes of medical diagnosis or as a recommendation for medical care or treatment. The information on this App is not a substitute for professional medical advice, diagnosis or treatment. All content, including text, graphics, images and information, contained on or available through this App is for general information purposes only. Professional Medical Advice and Assistance You are strongly encouraged to confirm any information obtained from or through this App with your physician or another professional healthcare provider and to review all information regarding any medical condition or treatment with your physician or other a professional healthcare provider.

Screenshots

Blood Pressure Tracker SmartBP4 screens
QTc4 screens

Verdict

The call

The clearest difference is in-app purchases: QTc at none against Blood Pressure Tracker SmartBP's 10. QTc also leads on ads (none vs shown) and rating (4.7 vs 4.5). Blood Pressure Tracker SmartBP's advantage is update cadence (fortnightly vs every 4 months) and ratings volume (61K vs 51). On price, review sentiment and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Blood Pressure Tracker SmartBP sells 10 in-app purchases, starting at $5.99 per 7 days. QTc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

QTc holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Blood Pressure Tracker SmartBP has 61K ratings behind it against 51, so its average is the more settled of the two. Written reviews complicate that: 56% of Blood Pressure Tracker SmartBP's written reviews are positive against 50% of QTc's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Blood Pressure Tracker SmartBP ships an update fortnightly, QTc every 4 months. The most recent releases landed on November 5, 2026 and November 2, 2026 respectively.

Scorecard8 real differences · 3 level
Blood Pressure Tracker SmartBP versus QTc: the parameters behind the verdict, then further details
ParameterBlood Pressure Tracker SmartBPQTc
PriceFreeFree
Rating4.5 (61K ratings)4.7 (51 ratings) — better
Positive reviews55.5% of reviews — better50.0% of reviews
Number of ratings61K — better51
Update frequencyFortnightly — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#24 — better—
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPad
Requires iOS16.0 — better27.0
Further details — not scored
Size424 MB1 MB
Age rating12+17+
DeveloperEvolve Medical Systems, LLCMarian Stiehler

Customer experience

Blood Pressure Tracker SmartBP

All ratings61,090 ratings
Positive87.6%
Neutral4.6%
Negative7.8%
Written reviews924 reviews
Positive55.5%
Neutral6.3%
Negative38.2%

QTc

All ratings51 ratings
Positive94.1%
Neutral2.0%
Negative3.9%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Bugs and requests

Blood Pressure Tracker SmartBP

Reported bugs

3 issues
  • App crashes on latest iOS update
  • Deleted data not recoverable
  • Unable to edit or delete entries

Requested features

5 requests
  • Customizable graph scales
  • Automatic sync between devices
  • More flexible tagging options
  • Ability to set default settings
  • Support for multiple user profiles

QTc

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Blood Pressure Tracker SmartBP

Subscriptions7
  • Weekly$5.997 Days
  • SmartBP Premium monthly$14.991 Month
  • Annual 50%off$19.991 Year
Show 4 more
  • SmartBP Premium monthly$19.991 Month
  • Premium Annual Subscription$27.991 Year
  • SmartBP Premium Annual$39.991 Year
  • SmartBP Premium Annual$44.991 Year
One-time3
  • Multi user profile$5.99
  • SmartBP Promo Premium Lifetime$59.99
  • premium ad-free version with cloud services enabled$99.99
None

QTc

No in-app purchases

Questions

Is Blood Pressure Tracker SmartBP free?
Blood Pressure Tracker SmartBP is free to download, with in-app purchases available.
Is QTc free?
QTc is free to download, with no in-app purchases.
Which has better reviews, Blood Pressure Tracker SmartBP or QTc?
QTc is rated higher. Blood Pressure Tracker SmartBP averages 4.5 out of 5 from 61K ratings, while QTc averages 4.7 from 51 ratings.
Do Blood Pressure Tracker SmartBP or QTc have ads?
Blood Pressure Tracker SmartBP shows ads; QTc does not.
Which is updated more often, Blood Pressure Tracker SmartBP or QTc?
Blood Pressure Tracker SmartBP ships an update fortnightly, and QTc every 4 months. Most recently, Blood Pressure Tracker SmartBP was updated on November 5, 2026 and QTc on November 2, 2026.

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