# PDF Watch Viewer vs Nano Notes

The clearest difference is review sentiment: Nano Notes at 83% against PDF Watch Viewer's 13%. Nano Notes also leads on rating (4.8 vs 1.8) and in-app purchases (none vs 1). PDF Watch Viewer's advantage is update cadence (every 2 months vs every 3 months). On price, ratings volume, ads and device support there is nothing between them.

Both are free to download. PDF Watch Viewer sells 1 one-off in-app purchase. Nano Notes asks for nothing beyond the download.

Nano Notes holds the better App Store score, 4.8 against 1.8. Both are backed by a comparable volume of ratings — 51 and 150 respectively. Written reviews point the same way: 13% of PDF Watch Viewer's written reviews are positive against 83% of Nano Notes's.

PDF Watch Viewer ships an update every 2 months, Nano Notes every 3 months. The most recent releases landed on September 19, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | PDF Watch Viewer | Nano Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (51 ratings)](https://appshunter.io/ios/app/pdf-watch-viewer/id1346356339/reviews) | **[4.8 (150 ratings)](https://appshunter.io/ios/app/nano-notes/id1445942906/reviews)** |
| Number of ratings | 51 | **150** |
| Positive reviews | 13.0% of reviews | **83.3% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 10 MB | 7 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod, Apple Watch | **iPhone, iPad, iPod, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Stefano Russello](https://appshunter.io/developer/543198306) | [Vincent Tourraine](https://appshunter.io/developer/308598599) |

## What reviewers say

### PDF Watch Viewer

[App page](https://appshunter.io/ios/app/pdf-watch-viewer/id1346356339)

View PDF documents directly on your Apple Watch without needing your iPhone. Easily transfer files from your web browser, iCloud, email, or messaging apps to your wrist for convenient access.

**Highlights:** View PDFs on Apple Watch, Transfer files from iPhone, Add PDFs from web browser, Add PDFs from iCloud, Add PDFs from email/messenger

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited PDF | $1.99 | one-time |


### Nano Notes

[App page](https://appshunter.io/ios/app/nano-notes/id1445942906)

Capture thoughts and ideas instantly with a simple note-taking tool. Access and review your notes conveniently on your Apple Watch.

**Highlights:** Quick note creation, Apple Watch access, Simple interface, Instant synchronization

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PDF Watch Viewer free?

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

### Is Nano Notes free?

Nano Notes is free to download, with no in-app purchases.

### Which has better reviews, PDF Watch Viewer or Nano Notes?

Nano Notes is rated higher. PDF Watch Viewer averages 1.8 out of 5 from 51 ratings, while Nano Notes averages 4.8 from 150 ratings.

### Do PDF Watch Viewer or Nano Notes have ads?

Neither PDF Watch Viewer nor Nano Notes shows ads.

### Which is updated more often, PDF Watch Viewer or Nano Notes?

PDF Watch Viewer ships an update every 2 months, and Nano Notes every 3 months. Most recently, PDF Watch Viewer was updated on September 19, 2026 and Nano Notes on September 13, 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.*