# GPS String vs HR Pulse

The clearest difference is in-app purchases: GPS String at none against HR Pulse's 3. GPS String also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. HR Pulse sells 3 in-app purchases, starting at $0.49 per 7 days. GPS String asks for nothing beyond the download.

GPS String ships an update every 3 days, HR Pulse every 2 weeks. The most recent releases landed on October 7, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | GPS String | HR Pulse |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/hr-pulse-heart-rate-tracker/id1584776878/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 2 weeks |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 44 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takuo Matsumura](https://appshunter.io/developer/1076447675) | [亮 苏](https://appshunter.io/developer/1406648243) |

## What reviewers say

### GPS String

[App page](https://appshunter.io/ios/app/gps-string/id1097060152)

Measure distances between two points on a map, calculate areas by marking three or more points, and save or copy results. It also provides current GPS location data that can be copied for use in emails or notes.

**Highlights:** Measure distance between two points, Calculate area with three or more points, Save and copy measurement results, Switch map views (map, satellite, hybrid), Copy current GPS location, Toggle GPS data display (angle, DMS)

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

**In-app purchases:** none


### 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 GPS String free?

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

### Is HR Pulse free?

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

### Do GPS String or HR Pulse have ads?

HR Pulse shows ads; GPS String does not.

### Which is updated more often, GPS String or HR Pulse?

GPS String ships an update every 3 days, and HR Pulse every 2 weeks. Most recently, GPS String was updated on October 7, 2026 and HR Pulse on October 15, 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.*