# Duffy vs HeartRate++

The clearest difference is price: Duffy at Free against HeartRate++'s $2.99. Duffy also leads on rating (4.7 vs 2.4) and review sentiment (84% vs 42%). HeartRate++'s advantage is in-app purchases (none vs 4) and update cadence (every 3 weeks vs every 5 months). On ads and device support there is nothing between them.

Duffy is free to download; HeartRate++ costs $2.99 up front. Duffy sells 4 one-off in-app purchases. HeartRate++ asks for nothing beyond the download.

Duffy holds the better App Store score, 4.7 against 2.4. That said, the two scores are not equally well evidenced: Duffy has 782 ratings behind it against 17, so its average is the more settled of the two. Written reviews point the same way: 84% of Duffy's written reviews are positive against 42% of HeartRate++'s.

Duffy ships an update every 5 months, HeartRate++ every 3 weeks. The most recent releases landed on October 22, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Duffy | HeartRate++ |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[4.7 (782 ratings)](https://appshunter.io/ios/app/duffy-steps-complication/id1207581673/reviews)** | [2.4 (17 ratings)](https://appshunter.io/ios/app/heartrate-plus-plus/id1485278667/reviews) |
| Number of ratings | **782** | 17 |
| Positive reviews | **83.8% of reviews** | 42.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | **Free with in-app purchases** | Paid |
| Size | 8 MB | 2 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Think Tank Productions](https://appshunter.io/developer/438070192) | [Ahmed Hussein](https://appshunter.io/developer/884216229) |

## What reviewers say

### Duffy

[App page](https://appshunter.io/ios/app/duffy-steps-complication/id1207581673)

This app displays your daily step count directly on your Apple Watch face as a complication. It offers a full watch app for detailed stats and goal notifications, plus a companion iPhone app for deeper data analysis and trends. Access your fitness data at a glance without opening the Activity app.

**Highlights:** Watch face complication for step count, Full watch app for steps, flights, distance, Daily step goal notifications, Companion iPhone app for trends, HealthKit data integration

**Features:** Apple Watch app

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip $1 | $0.99 | one-time |
| Tip $2 | $1.99 | one-time |
| Tip $3 | $2.99 | one-time |
| Tip $5 | $4.99 | one-time |


### HeartRate++

[App page](https://appshunter.io/ios/app/heartrate-plus-plus/id1485278667)

Display your current heart rate directly on your watch face with real-time updates. This app provides a detailed overview of your heart rate, including resting heart rate, and historical data for the past four hours. Optimize your watch face space with a functional and informative complication.

**Highlights:** Real-time heart rate complication, Up-to-date resting heart rate, 4-hour heart rate histogram, Average, highest, lowest heart rate data, Complications for various watch styles

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is Duffy free?

Duffy is free to download, with in-app purchases available.

### Is HeartRate++ free?

HeartRate++ costs $2.99, with no in-app purchases.

### Which has better reviews, Duffy or HeartRate++?

Duffy is rated higher. Duffy averages 4.7 out of 5 from 782 ratings, while HeartRate++ averages 2.4 from 17 ratings.

### Do Duffy or HeartRate++ have ads?

Neither Duffy nor HeartRate++ shows ads.

### Which is updated more often, Duffy or HeartRate++?

Duffy ships an update every 5 months, and HeartRate++ every 3 weeks. Most recently, Duffy was updated on October 22, 2026 and HeartRate++ on October 10, 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.*