# Nap Buddy Timer vs Physiological Sigh

The clearest difference is in-app purchases: Nap Buddy Timer at none against Physiological Sigh's 2. Nap Buddy Timer also leads on iOS requirement (15.0 vs 26.2). Physiological Sigh's advantage is ads (none vs shown). On price, review sentiment, update cadence and device support there is nothing between them.

Both are free to download. Physiological Sigh sells 2 in-app purchases, starting at $2.99 per month. Nap Buddy Timer asks for nothing beyond the download.

Nap Buddy Timer ships an update every 4 days, Physiological Sigh every 3 days. The most recent releases landed on October 20, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Nap Buddy Timer | Physiological Sigh |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/physiological-sigh/id6764079116/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 24 MB | 43 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [iida atsushi](https://appshunter.io/developer/1872403865) | [emmanuel orvain](https://appshunter.io/developer/1025308595) |

## What reviewers say

### Nap Buddy Timer

[App page](https://appshunter.io/ios/app/nap-buddy-timer/id6758344138)

This app helps you take better naps with customizable timers and soothing background music. Unlock cute animal companions by watching ads. Enjoy relaxing sounds like forest, river, ocean, rain, and jazz.

**Highlights:** Customizable nap timer, Soothing background music options, Cute animal character companions, Background playback, Earphone compatible alarm, 26-minute power nap preset

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

**In-app purchases:** none


### Physiological Sigh

[App page](https://appshunter.io/ios/app/physiological-sigh/id6764079116)

This app guides you through a scientifically proven breathing technique to quickly calm your nervous system and reduce stress. It requires no prior meditation experience and offers customizable durations and ambient sounds for a personalized experience.

**Highlights:** Guided breathing exercises, Customizable phase durations, Ambient sound library, Daily reminder notifications, Distraction-free interface, Haptic feedback

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Account / Month | $2.99 | per month |
| Premium Account / Year | $9.99 | per year |


## Frequently asked questions

### Is Nap Buddy Timer free?

Nap Buddy Timer is free to download, with no in-app purchases.

### Is Physiological Sigh free?

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

### Do Nap Buddy Timer or Physiological Sigh have ads?

Nap Buddy Timer shows ads; Physiological Sigh does not.

### Which is updated more often, Nap Buddy Timer or Physiological Sigh?

Nap Buddy Timer ships an update every 4 days, and Physiological Sigh every 3 days. Most recently, Nap Buddy Timer was updated on October 20, 2026 and Physiological Sigh on October 11, 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.*