# HRV Tracker for Watch vs Caffeine Sleep Planner

The clearest difference is review sentiment: Caffeine Sleep Planner at 100% against HRV Tracker for Watch's 41%. Caffeine Sleep Planner also leads on monetization model (free with in-app purchases vs subscription) and rating (5.0 vs 4.5). HRV Tracker for Watch's advantage is ratings volume (952 vs 1). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. HRV Tracker for Watch sells 2 in-app purchases, starting at $2.99 per month and Caffeine Sleep Planner sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Caffeine Sleep Planner holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: HRV Tracker for Watch has 952 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 41% of HRV Tracker for Watch's written reviews are positive against 100% of Caffeine Sleep Planner's.

HRV Tracker for Watch ships an update monthly, Caffeine Sleep Planner every 3 weeks. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | HRV Tracker for Watch | Caffeine Sleep Planner |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (952 ratings)](https://appshunter.io/ios/app/hrv-tracker-for-watch/id1463020956/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/caffeine-sleep-planner/id6773001853/reviews)** |
| Number of ratings | **952** | 1 |
| Positive reviews | 41.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 25 MB | 2 MB |
| Requires iOS | 18 | **17.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Sydvesti Oy](https://appshunter.io/developer/912783647) | [Dustin Ober](https://appshunter.io/developer/1881347876) |

## What reviewers say

### HRV Tracker for Watch

[App page](https://appshunter.io/ios/app/hrv-tracker-for-watch/id1463020956)

Monitor your body's stress levels and recovery by tracking heart rate variability (HRV) using your Apple Watch. Analyze trends, compare HRV to other health metrics, and receive personalized notifications to understand how daily activities impact your well-being.

**Highlights:** Track short-term and long-term HRV trends, Compare HRV to activity, sleep, and resting heart rate, Receive HRV change notifications on Apple Watch, View HRV Trend Summary (experimental), Integrates with Apple Health app, Capture HRV data via Mindfulness app

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $2.99 | per month |
| Yearly Premium | $19.99 | per year |


### Caffeine Sleep Planner

[App page](https://appshunter.io/ios/app/caffeine-sleep-planner/id6773001853)

This app helps you track your caffeine intake and estimate when its effects will wear off. It provides a visual 24-hour decay chart and allows for custom entries. Widgets offer quick access to your current caffeine estimate.

**Highlights:** Log caffeine drinks, Estimate caffeine decay, Custom caffeine amounts, 24-hour decay chart, Home and Lock Screen widgets, On-device data storage

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tip the Dev | $0.99 | one-time |


## Frequently asked questions

### Is HRV Tracker for Watch free?

HRV Tracker for Watch is free to download, with in-app purchases available.

### Is Caffeine Sleep Planner free?

Caffeine Sleep Planner is free to download, with in-app purchases available.

### Which has better reviews, HRV Tracker for Watch or Caffeine Sleep Planner?

Caffeine Sleep Planner is rated higher. HRV Tracker for Watch averages 4.5 out of 5 from 952 ratings, while Caffeine Sleep Planner averages 5.0 from 1 ratings.

### Do HRV Tracker for Watch or Caffeine Sleep Planner have ads?

Neither HRV Tracker for Watch nor Caffeine Sleep Planner shows ads.

### Which is updated more often, HRV Tracker for Watch or Caffeine Sleep Planner?

HRV Tracker for Watch ships an update monthly, and Caffeine Sleep Planner every 3 weeks. Most recently, HRV Tracker for Watch was updated on November 6, 2026 and Caffeine Sleep Planner 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.*