# Cardiac Cycle — Four points. That’s the beat.

> Four points. That’s the beat. (iPhone/iPad app by Satish Deopujari.)

- Source: https://appshunter.io/ios/app/cardiac-cycle/id6822151328 (this page in markdown: same URL + `.md`)
- Developer: [Satish Deopujari](https://appshunter.io/developer/1180072702)
- Category: Medical, Health & Fitness
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 18 MB
- Languages: American English
- Released: 2026-10-27
- Data updated: 2026-10-29

## What is Cardiac Cycle?

Cardiac Cycle teaches the beat from four cardinal points — not seven named phases to memorise.

Two lines do not move: the aorta (high) and the atrium (low). The ventricle walks between them. A valve opens or shuts only when the moving line crosses a fixed line.

1  Mitral shuts · LUB
2  Aortic opens · silent
3  Aortic shuts · DUB
4  Mitral opens · silent

Open the app and you get:

• 4 Points — the two-line model, then Wiggers when you are ready
• Heart — the cartoon ventricle
• Venous — a, c, v waves in the same beat
• Sounds — S1, S2, and why a murmur sits where it sits
• Film — the four points on a recorded loop
• Test — short questions on the same rule
• Ref — sources, copyright, and this description

The Four Cardinal Points is taught from the registered work “The Valve Clock Timing the Hearts Every Move” (Copyright Office, Government of India, L-29321/2025-CO).

Teaching only. Simulated heart. Not a medical device. Not for diagnosis, monitoring, or patient care.

## Is Cardiac Cycle safe?

Not enough ratings yet to assess Cardiac Cycle.

## Is Cardiac Cycle legit?

Cardiac Cycle appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Cardiac Cycle is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-28

No release notes.

## More apps by Satish Deopujari

- [ODC Tutor](https://appshunter.io/ios/app/odc-tutor/id993661003)
- [Complete ABG](https://appshunter.io/ios/app/complete-abg/id993718869)
- [Alveolar - arterial (A-a) Gradient](https://appshunter.io/ios/app/alveolar-arterial-a-a-gradient/id996385661)
- [Medical MCQs](https://appshunter.io/ios/app/medical-mcqs/id1011714896)
- [ETCO2 Tutor](https://appshunter.io/ios/app/etco2-tutor/id1047646888)
- [Rx Pediatric Dehydration](https://appshunter.io/ios/app/rx-pediatric-dehydration/id1051199730)

All apps by Satish Deopujari: https://appshunter.io/developer/1180072702

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-29.*