# Shadow Yoga vs RHRSpark

The clearest difference is price: RHRSpark at Free against Shadow Yoga's $4.99. RHRSpark also leads on update cadence (weekly vs every 11 months). Shadow Yoga's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 17.0). On rating, ratings volume, ads and device support there is nothing between them.

RHRSpark is free to download; Shadow Yoga costs $4.99 up front. RHRSpark sells 2 one-off in-app purchases. Shadow Yoga asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Shadow Yoga against 5.0 for RHRSpark. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Shadow Yoga ships an update every 11 months, RHRSpark weekly. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Shadow Yoga | RHRSpark |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/shadow-yoga/id930683452/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/rhrspark/id6762872980/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 11 months | **Weekly** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 21 MB | 6 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Shadow Yoga](https://appshunter.io/developer/1066404841) | [Joel Farthing](https://appshunter.io/developer/1879704683) |

## What reviewers say

### Shadow Yoga

[App page](https://appshunter.io/ios/app/shadow-yoga/id930683452)

Learn the Shadow Yoga Preludes with animated demonstrations of Caranas and all three sequences. This app provides instructions to deepen your understanding of the practice, complementing in-person guidance from certified teachers.

**Highlights:** Animated Caranas, All three Preludes demonstrated, Instructional support, Complements teacher instruction, Supports understanding of practice

**Features:** macOS Compatibility, 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 | $2.99 | one-time |


## Frequently asked questions

### Is Shadow Yoga free?

Shadow Yoga costs $4.99, with no in-app purchases.

### Is RHRSpark free?

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

### Which has better reviews, Shadow Yoga or RHRSpark?

Shadow Yoga and RHRSpark are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do Shadow Yoga or RHRSpark have ads?

Neither Shadow Yoga nor RHRSpark shows ads.

### Which is updated more often, Shadow Yoga or RHRSpark?

Shadow Yoga ships an update every 11 months, and RHRSpark weekly. Most recently, Shadow Yoga was updated on November 1, 2026 and RHRSpark on October 31, 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.*