# Sleep Sounds vs PDF Reader

The clearest difference is in-app purchases: Sleep Sounds at none against PDF Reader's 1. Sleep Sounds also leads on rating (4.4 vs 4.0) and iOS requirement (14.0 vs 16.4). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. PDF Reader sells 1 in-app purchase, starting at $19.99 per 7 days. Sleep Sounds asks for nothing beyond the download.

Sleep Sounds holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 7 and 4 respectively.

## The numbers

| Metric | Sleep Sounds | PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/sleep-sounds-nature-voice/id6463475372/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231/reviews) |
| Number of ratings | **7** | 4 |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Every 4 days |
| Monetization | Ad-supported | Ad-supported |
| Size | 53 MB | 85 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [FREE LINK PTE. LTD.](https://appshunter.io/developer/1531062004) | [truong nguyen xuan](https://appshunter.io/developer/552933291) |

## What reviewers say

### Sleep Sounds

[App page](https://appshunter.io/ios/app/sleep-sounds-nature-voice/id6463475372)

Drift into peaceful slumber with a variety of calming white noise and soothing nature sounds. Create personalized soundscapes, set sleep timers, and enhance focus for a more restful night and productive day.

**Highlights:** Relaxing white noise options, Soothing nature sounds, Personalized sound mixing, Automatic sleep timer, Focus-enhancing soundscapes

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Reader

[App page](https://appshunter.io/ios/app/pdf-reader-smart-reader/id6756703231)

This app is a fast and lightweight document viewer for PDF, Word, Excel, and PowerPoint files. It offers smart file management, offline access, and easy sharing, making it ideal for students and professionals. Enjoy a seamless reading experience with features like search, bookmarks, and dark mode.

**Highlights:** All-in-one document viewer (PDF, DOCX, XLSX, PPTX, TXT), Smart file manager, Offline document access, Fast and smooth performance, Search and bookmarking, Dark mode support, Easy document sharing

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription - 1 week | $19.99 | per 7 days |


## Frequently asked questions

### Is Sleep Sounds free?

Sleep Sounds is free to download, with no in-app purchases.

### Is PDF Reader free?

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

### Which has better reviews, Sleep Sounds or PDF Reader?

Sleep Sounds is rated higher. Sleep Sounds averages 4.4 out of 5 from 7 ratings, while PDF Reader averages 4.0 from 4 ratings.

### Do Sleep Sounds or PDF Reader have ads?

Both Sleep Sounds and PDF Reader show ads.

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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.*