# Flamingo Readiness vs RHRSpark

The clearest difference is in-app purchases: Flamingo Readiness at none against RHRSpark's 2. Flamingo Readiness also leads on ratings volume (7 vs 1) and iOS requirement (15.0 vs 17.0). RHRSpark's advantage is update cadence (weekly vs every 5 months). On price, rating, ads and device support there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Flamingo Readiness against 5.0 for RHRSpark. That said, the two scores are not equally well evidenced: Flamingo Readiness has 7 ratings behind it against 1, so its average is the more settled of the two.

Flamingo Readiness ships an update every 5 months, RHRSpark weekly. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Flamingo Readiness | RHRSpark |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (7 ratings)](https://appshunter.io/ios/app/flamingo-readiness/id1604012914/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/rhrspark/id6762872980/reviews) |
| Number of ratings | **7** | 1 |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Gianluca Capraro](https://appshunter.io/developer/1691787728) | [Joel Farthing](https://appshunter.io/developer/1879704683) |

## What reviewers say

### Flamingo Readiness

[App page](https://appshunter.io/ios/app/flamingo-readiness/id1604012914)

Understand your health trends and recovery with a personal readiness score. This app uses your Apple Watch data to track heart rate, HRV, and sleep, providing simple charts to visualize your progress.

**Highlights:** Personal readiness score, HealthKit integration, Heart rate tracking, Sleep analysis, Heart Rate Variability (HRV) monitoring, Simple trend visualization

**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 Flamingo Readiness free?

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

### Is RHRSpark free?

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

### Which has better reviews, Flamingo Readiness or RHRSpark?

Flamingo Readiness and RHRSpark are both rated 5.0 out of 5 on the App Store, from 7 and 1 ratings respectively.

### Do Flamingo Readiness or RHRSpark have ads?

Neither Flamingo Readiness nor RHRSpark shows ads.

### Which is updated more often, Flamingo Readiness or RHRSpark?

Flamingo Readiness ships an update every 5 months, and RHRSpark weekly. Most recently, Flamingo Readiness was updated on November 3, 2026 and RHRSpark on October 31, 2026.

---

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