# Power Nap Tracker vs Preventicus Heartbeats.

The clearest difference is in-app purchases: Power Nap Tracker at none against Preventicus Heartbeats.'s 8. Power Nap Tracker also leads on rating (4.4 vs 4.0) and review sentiment (63% vs 38%). Preventicus Heartbeats.'s advantage is ads (none vs shown). On price, ratings volume, update cadence and monetization model there is nothing between them.

Both are free to download. Preventicus Heartbeats. sells 8 in-app purchases, starting at $5.99 per month. Power Nap Tracker asks for nothing beyond the download.

Power Nap Tracker holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 227 and 92 respectively. Written reviews point the same way: 63% of Power Nap Tracker's written reviews are positive against 38% of Preventicus Heartbeats.'s.

Power Nap Tracker ships an update every 5 months, Preventicus Heartbeats. every 4 months. The most recent releases landed on October 20, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Power Nap Tracker | Preventicus Heartbeats. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (227 ratings)](https://appshunter.io/ios/app/power-nap-tracker-cycle-timer/id891618463/reviews)** | [4.0 (92 ratings)](https://appshunter.io/ios/app/preventicus-heartbeats/id1122988391/reviews) |
| Number of ratings | **227** | 92 |
| Positive reviews | **63.0% of reviews** | 37.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 4 months** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 92 MB | 88 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Phase4 Mobile](https://appshunter.io/developer/787654481) | [Preventicus GmbH](https://appshunter.io/developer/999752973) |

## What reviewers say

### Power Nap Tracker

[App page](https://appshunter.io/ios/app/power-nap-tracker-cycle-timer/id891618463)

Optimize your short sleep sessions to feel refreshed and productive. This app tracks your movements during naps and gently wakes you at your chosen duration, preventing grogginess. Enjoy beautiful nature sounds and review your nap patterns with insightful graphs.

**Highlights:** Monitors nap duration up to 3 hours, Gentle wake-up with natural sounds, Nap profile graphing, Records loudest sounds during sleep, Background operation, Snooze function

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Works amazing, knocks out instantly
- 👍 Gentle wake-up with nice sounds
- 👍 Accurate nap timer and tracker
- 👍 Free and functional
- 👍 Handy and easy to use

**What reviewers complain about**

- 🐛 Snooze feature should be eliminated
- 🐛 Alarm volume is max, not gradual
- 🐛 App is useless if listening to another app
- 🐛 Cannot get past consent needed message
- 🐛 Stuck on consent needed screen

**Reported bugs**

- Snooze feature should be eliminated
- Alarm volume is max, not gradual
- App disconnects headphones
- Cannot get past “consent needed” message
- App stuck on the "consent needed" screen

**Requested features**

- Add option to show how much sleep you've had
- Add option to show current time and remaining time
- Add option to show elapsed time during measurement
- Clarify the basis for 0 minute sleep recording
- Share naps with iPhone Health app


### Preventicus Heartbeats.

[App page](https://appshunter.io/ios/app/preventicus-heartbeats/id1122988391)

Monitor your heart rhythm using your smartphone camera for quick and detailed analysis. Detect potential cardiac arrhythmias like atrial fibrillation with regular use. Receive expert review for abnormal results and personalized heart health articles.

**Highlights:** Heart rhythm analysis via smartphone camera, One-minute heart rhythm test, Detection of cardiac arrhythmia, Detailed analysis and recommendations, Expert review of abnormal results, Personalized heart health articles

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Classic - 1 Month | $5.99 | per month |
| Value - 1 Month | $9.99 | per month |
| Classic – Half-Year | $24.99 | per 6 months |
| Value – Half-Year | $39.99 | per 6 months |
| FULL VERSION 1 month | $5.99 | one-time |
| Telecare Service single report | $11.99 | one-time |
| Full Version 6 month | $24.99 | one-time |
| Telecare Service five reports | $39.99 | one-time |


## Frequently asked questions

### Is Power Nap Tracker free?

Power Nap Tracker is free to download, with no in-app purchases.

### Is Preventicus Heartbeats. free?

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

### Which has better reviews, Power Nap Tracker or Preventicus Heartbeats.?

Power Nap Tracker is rated higher. Power Nap Tracker averages 4.4 out of 5 from 227 ratings, while Preventicus Heartbeats. averages 4.0 from 92 ratings.

### Do Power Nap Tracker or Preventicus Heartbeats. have ads?

Power Nap Tracker shows ads; Preventicus Heartbeats. does not.

### Which is updated more often, Power Nap Tracker or Preventicus Heartbeats.?

Power Nap Tracker ships an update every 5 months, and Preventicus Heartbeats. every 4 months. Most recently, Power Nap Tracker was updated on October 20, 2026 and Preventicus Heartbeats. on October 22, 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.*