# Ksteps vs RHRSpark

The clearest difference is in-app purchases: Ksteps at none against RHRSpark's 2. RHRSpark's advantage is iOS requirement (17.0 vs 26.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. RHRSpark sells 2 one-off in-app purchases. Ksteps asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Ksteps | RHRSpark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/rhrspark/id6762872980/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 10 MB | 3 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Kiyeong Jeong](https://appshunter.io/developer/1884802566) | [Joel Farthing](https://appshunter.io/developer/1879704683) |

## What reviewers say

### Ksteps

[App page](https://appshunter.io/ios/app/ksteps/id6760519760)

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

**In-app purchases:** none


### RHRSpark

[App page](https://appshunter.io/ios/app/rhrspark/id6762872980)

Visualize your resting heart rate directly on your Apple Watch face with customizable complications. Choose from various styles and time windows to see your heart rate trends at a glance. Understand how your data is calculated with full transparency.

**Highlights:** Resting heart rate on watch face, Sparkline, gauge, or corner complications, 10 watch face complications, 4 time window options (8H, 24H, 7D, 30D), Two distinct data sources, Full calculation transparency

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RHRSpark Pro | $0.99 | one-time |
| Tip Jar | $4.99 | one-time |


## Frequently asked questions

### Is Ksteps free?

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

### Is RHRSpark free?

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

### Do Ksteps or RHRSpark have ads?

Neither Ksteps nor RHRSpark shows ads.

### Which is updated more often, Ksteps or RHRSpark?

Ksteps ships an update every 5 days, and RHRSpark every 5 days. Most recently, Ksteps was updated on October 9, 2026 and RHRSpark on October 7, 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.*