Cardio Tools vs Observe.
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Cardio Tools
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Cardio Tools App includes some commonly used scales in cardiology. Features are as follows: - We included 15 commonly used medical scales in cadiology in Version 1.0, and we will continue to add more scales or tools according to users' feedback. - You can quickly search for scales and add frequently used scales to favorites. - Records of scores on scales can be saved for easy recall when needed. Disclaimer: Cardio Tools App is designed only for healthcare professionals, not for the public. Please seek doctor's advice before making any medical decisions if you have any symptoms. Cardio Tools App includes clinical tools, which are aimed to be only a suggestive tool. Physicans and other healthcare professionals should have their own clinical judgment. If you have any feedback or questions, we would love to hear from you! Send email to edwardai.sj@gmail.com Disclaimer: Cardio Tools App is designed only for healthcare professionals, not for the public. Please seek doctor's advice before making any medical decisions if you have any symptoms. The App includes clinical tools, which are aimed to be only a suggestive tool. Physicans and other healthcare professionals should have their own clinical judgment. Privacy Policy: https://fatemed.notion.site/privacy-policy-cardio Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Observe.
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Observe, user-friendly app designed for healthcare professionals to assess heart failure with preserved ejection fraction, featuring the Heart Failure Association (HFA) of the European Society of Cardiology (ESC) scoring systems: HFA-PEFF and H2FPEF (U.S. Score) guidelines. A precise tool to calculate HFpEF risk score using functional, morphological, and biomarker data. It gives a probability and percentage estimation of HFpEF, aiding diagnosis. However, it's not a substitute for professional medical advice or diagnosis. Healthcare providers should rely on comprehensive medical evaluations and their expertise when interpreting results.
Screenshots
Verdict
The clearest difference is in-app purchases: Observe. at none against Cardio Tools's 1. Observe. also leads on update cadence (every 8 months vs every 20 months) and iOS requirement (13.0 vs 15.0). On price, ads and device support there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Cardio Tools sells 1 one-off in-app purchase. Observe. asks for nothing beyond the download.
Cardio Tools ships an update every 20 months, Observe. every 8 months. The most recent releases landed on November 3, 2026 and October 27, 2026 respectively.
| Parameter | Cardio Tools | Observe. |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 20 months | Every 8 months โ better |
| Ads | No | No |
| In-app purchases | Yes | No โ better |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 2 MB | 29 MB |
| Age rating | 12+ | 4+ |
| Developer | Beijing Fate Med Technology Co., Ltd. | SELECT ICT Systems SAE |
In-app purchases
Cardio Tools
- Lifetime Premium$4.99
Observe.
No in-app purchases
Questions
Is Cardio Tools free?
Is Observe. free?
Do Cardio Tools or Observe. have ads?
Which is updated more often, Cardio Tools or Observe.?
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