# SharkJR vs Heart Works

The clearest difference is rating: SharkJR at 5.0 against Heart Works's 3.7. SharkJR also leads on update cadence (every 9 days vs every 3 weeks). Heart Works's advantage is monetization model (free vs ad-supported) and ratings volume (3 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SharkJR holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

SharkJR ships an update every 9 days, Heart Works every 3 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | SharkJR | Heart Works |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sharkjr/id1637506891/reviews)** | [3.7 (3 ratings)](https://appshunter.io/ios/app/heart-works-phaware/id6572293049/reviews) |
| Number of ratings | 1 | **3** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 9 days** | Every 3 weeks |
| Monetization | Ad-supported | **Free** |
| Size | 69 MB | 56 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [Mostafa Hesham](https://appshunter.io/developer/1621969501) | [phaware global association](https://appshunter.io/developer/1027612096) |

## What reviewers say

### SharkJR

[App page](https://appshunter.io/ios/app/sharkjr/id1637506891)

This app offers a personalized online fitness journey with custom nutrition plans and engaging workouts. It helps you track water intake, sleep, and more with a real-time companion.

**Highlights:** Customized nutrition plans, Engaging exercises, Real-time workout companion, Water intake tracking, Sleep tracking, Coffee intake tracking

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Heart Works

[App page](https://appshunter.io/ios/app/heart-works-phaware/id6572293049)

This app helps medical researchers evaluate cardiovascular health in patients with Pulmonary Arterial Hypertension. It offers real-time health tracking, quality-of-life surveys, and 6-minute walk tests for patients to monitor their progress. The app also provides access to educational content and a podcast.

**Highlights:** Six-Minute Walk Test (6MWT), Real-time health data tracking, Quality-of-life surveys, Available on phone and watch, Access to 'phaware® podcast', Tailored education

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SharkJR free?

SharkJR is free to download, with no in-app purchases.

### Is Heart Works free?

Heart Works is free to download, with no in-app purchases.

### Which has better reviews, SharkJR or Heart Works?

SharkJR is rated higher. SharkJR averages 5.0 out of 5 from 1 ratings, while Heart Works averages 3.7 from 3 ratings.

### Do SharkJR or Heart Works have ads?

Neither SharkJR nor Heart Works shows ads.

### Which is updated more often, SharkJR or Heart Works?

SharkJR ships an update every 9 days, and Heart Works every 3 weeks. Most recently, SharkJR was updated on November 3, 2026 and Heart Works on November 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*