Fetal Heart Rate 5-tier
Fetal Heart Rate 5-tier is #2 in Medical Paid in Brazil and charting in 4 of 24 countries we track.
Updated 27 Sep 2026 · rankings refresh through the day
25 Sep 2026 Medical PaidFetal Heart Rate 5-tier at a glance
AI summary written from our chart and store data, 2026-09-27. It can be wrong: check the numbers above.
A clinical decision support tool for obstetricians, midwives, and nurses that standardizes the interpretation of fetal heart rate tracings using a five-color risk classification system. The app holds the #2 position in Brazil's paid medical category and ranks within the top 30 in the US paid medical charts, indicating strong niche adoption among healthcare professionals in these markets.
Similar apps: UpToDate, Epocrates, Medscape
Fetal Heart Rate 5-tier on the App Store
App details
App privacy Measured
Fetal Heart Rate 5-tier declares it collects no data at all — the rarest and most private label on the App Store.
As declared by the developer on the App Store — Apple requires every app to publish this label. We track changes over time.
Fetal Heart Rate 5-tier downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Where Fetal Heart Rate 5-tier's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Retention · share of new users still active
Time spent · per daily user
How this is calculated
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Brazil | MedicalPaid | #2 |
 United States | MedicalPaid | #85 |
| Brazil | MedicalGrossing | #67 |
 Saudi Arabia | MedicalPaid | #186 |
 Indonesia | MedicalPaid | #192 |
Apps near Fetal Heart Rate 5-tier on the chart
Medical Paid, around #2.
Ratings
App Store, worldwide.
What users say about Fetal Heart Rate 5-tier
From the 5 most recent App Store reviews in the US.
Most users find the app useful for quick reference and learning the five-tier system, particularly healthcare professionals. However, one reviewer criticized the lack of interactive tracings and deemed it overpriced compared to free online resources.
Mostly positive (80% of recent reviews give 4–5 stars). People like it for regular updates, and being useful. Recent reviews are more negative than earlier ones.
What people like
- Updates: “I would love to see and update”
- Useful: “I also recommend it to all my nurses and students”
About Fetal Heart Rate 5-tier
FHR 5-tier is based on the five-color system developed by Drs. Julian Parer and Tomoaki Ikeda. (AJOG July 2007) The intent of their system is to standardize management of different fetal heart rate tracings. The system divides all fetal heart rate tracings into one of five categories: Green (no acidemia, no intervention required), Blue, Yellow, Orange or Red (evidence of actual or impending fetal asphyxia, rapid delivery recommended). Each color has assigned to it a: a) risk of acidemia, b) risk of evolution to a more serious pattern and c) recommended action.
The NICHD three-tier system of classifying fetal heart rate (FHR) tracings has been criticized for having too wide a range of tracings in “Category II”. Some researchers and clinicians believe that the five-tier color-coded system more effectively classifies EFM tracings. The five-tier system is being adopted by an increasing number of hospitals in the U.S. and in Japan.
FHR 5-tier makes it easier to use the five-color system.
Without the FHR 5-tier app, one must refer to a table with 134 possible combinations of variability, baseline, and decelerations. One must also either memorize or refer to the definitions for mild, moderate and severe decelerations, which are complex and sometimes confusing.
When using the FHR 5-tier app it is not necessary to refer to any other table or chart. Variability and baseline, and the shape, nadir, and duration of decelerations are entered with buttons on the consecutive screens. The app calculates the severity of the deceleration and the color for each tracing. All aspects of the tracing are summarized on the colored results screen, so that the user can quickly communicate with others.
Management recommendations as outlined by Parer and Ikeda are given. These include whether or not the obstetrician needs to be at the bedside; what other personnel should be available; and whether the patient should be moved to the operating room. In addition, conservative management techniques are listed where appropriate. Thus, for Blue, Yellow, and Orange tracings, the final results screen reminds the user to consider actions such as maternal position change, decreasing oxytocin, or amnioinfusion.
As noted by Parer and Ikeda, the guidelines for management may need to be modified for institutions other then theirs, and may even change depending on time of day.
The NICHD Category (I, II, III) is also given on the results screen.
This application is intended as a reference tool for use only by licensed healthcare professionals. This application is not a substitute for each licensed healthcare professional's independen