# Sleep Nook vs PuppySight

The clearest difference is price: PuppySight at Free against Sleep Nook's $1.99. Sleep Nook's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

PuppySight is free to download; Sleep Nook costs $1.99 up front. PuppySight sells 1 one-off in-app purchase. Sleep Nook asks for nothing beyond the download.

Sleep Nook ships an update weekly, PuppySight every 4 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | Sleep Nook | PuppySight |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/puppysight/id6800218221/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 24 MB | 15 MB |
| Requires iOS | 18.2 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [锦泉 严](https://appshunter.io/developer/1842644226) | [健 黄](https://appshunter.io/developer/1716262021) |

## What reviewers say

### Sleep Nook

[App page](https://appshunter.io/ios/app/sleep-nook/id6753137736)

**Features:** macOS Compatibility

**In-app purchases:** none


### PuppySight

[App page](https://appshunter.io/ios/app/puppysight/id6800218221)

Explore how dogs and cats see the world with this app that simulates animal vision. It uses scientific research to show differences in color, brightness, and field of view. Capture photos and videos or convert existing ones to compare perspectives.

**Highlights:** Simulates dog and cat vision, Color, brightness, and field of view simulation, Switch between Dog and Cat View, Capture photos and record videos, Convert existing media, On-device processing for privacy, Multi-language support

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PuppySight Pro | $3.99 | one-time |


## Frequently asked questions

### Is Sleep Nook free?

Sleep Nook costs $1.99, with no in-app purchases.

### Is PuppySight free?

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

### Do Sleep Nook or PuppySight have ads?

Neither Sleep Nook nor PuppySight shows ads.

### Which is updated more often, Sleep Nook or PuppySight?

Sleep Nook ships an update weekly, and PuppySight every 4 days. Most recently, Sleep Nook was updated on October 28, 2026 and PuppySight on October 29, 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.*