# Pair Cale vs HR Pulse

The clearest difference is rating: HR Pulse at 5.0 against Pair Cale's 4.0. HR Pulse also leads on device support (3 vs 1) and ratings volume (3 vs 1). Pair Cale's advantage is ads (none vs shown) and update cadence (every 5 days vs every 2 weeks). On price, in-app purchases, monetization model and iOS requirement there is nothing between them.

Both are free to download. Pair Cale sells 2 one-off in-app purchases and HR Pulse sells 3 in-app purchases, starting at $0.49 per 7 days. Whichever you choose, the download price is not the number that matters.

HR Pulse holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 3 respectively.

Pair Cale ships an update every 5 days, HR Pulse every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Pair Cale | HR Pulse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/pair-cale/id1376462458/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hr-pulse-heart-rate-tracker/id1584776878/reviews)** |
| Number of ratings | 1 | **3** |
| Positive reviews | 31.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 5 days** | Every 2 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 12 MB | 44 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Kazumasa Shimomura](https://appshunter.io/developer/1110502851) | [亮 苏](https://appshunter.io/developer/1406648243) |

## What reviewers say

### Pair Cale

[App page](https://appshunter.io/ios/app/pair-cale/id1376462458)

Easily share and sync work schedules in real-time with your partner. Ideal for couples with shift work, offering automatic updates, custom shifts, and a clean interface for effortless coordination.

**Highlights:** Real-time schedule synchronization, Automatic updates, Customizable shift names and colors, Offline access to synced schedules, Intuitive and minimalist design, Privacy-focused secure design

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Show rokuyo(六曜) | $1.99 | one-time |
| Hide advertising | $2.99 | one-time |


### HR Pulse

[App page](https://appshunter.io/ios/app/hr-pulse-heart-rate-tracker/id1584776878)

Measure your heart rate using your iPhone or iPad camera without any extra devices. Track daily statistics, view recent trends, and receive health tips. Develop healthy habits with a credit system that rewards regular measurements.

**Highlights:** Heart rate measurement via camera, Data analysis and state correlation, Daily heart rate statistics, Recent heart rate trends, Health tips, Historical data query, Credit score for habit building

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Subscribe | $0.49 | per 7 days |
| Monthly Subscriptions | $1.49 | per month |
| Annual Subscription | $10.49 | per year |


## Frequently asked questions

### Is Pair Cale free?

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

### Is HR Pulse free?

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

### Which has better reviews, Pair Cale or HR Pulse?

HR Pulse is rated higher. Pair Cale averages 4.0 out of 5 from 1 ratings, while HR Pulse averages 5.0 from 3 ratings.

### Do Pair Cale or HR Pulse have ads?

HR Pulse shows ads; Pair Cale does not.

### Which is updated more often, Pair Cale or HR Pulse?

Pair Cale ships an update every 5 days, and HR Pulse every 2 weeks. Most recently, Pair Cale was updated on October 24, 2026 and HR Pulse on October 24, 2026.

---

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