# pdf vs C1Net

The clearest difference is in-app purchases: C1Net at none against pdf's 3. C1Net also leads on ads (none vs shown) and device support (3 vs 1). pdf's advantage is update cadence (every 5 weeks vs every 8 months). On price and iOS requirement there is nothing between them.

Both are free to download. pdf sells 3 one-off in-app purchases. C1Net asks for nothing beyond the download.

pdf ships an update every 5 weeks, C1Net every 8 months. The most recent releases landed on October 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | pdf | C1Net |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (17 ratings)](https://appshunter.io/ios/app/pdf-notes-for-iphone/id694946243/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 48.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 5 weeks** | Every 8 months |
| Monetization | Free with in-app purchases | — |
| Size | 109 MB | 146 MB |
| Requires iOS | 16.0 | **15** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [AMuseTec Co., Ltd.](https://appshunter.io/developer/342152781) | [Adsystech](https://appshunter.io/developer/1485310479) |

## What reviewers say

### pdf

[App page](https://appshunter.io/ios/app/pdf-notes-for-iphone/id694946243)

This app allows you to read and annotate PDF files on your iPhone with fast page turning and convenient finger-writing tools. Easily import PDFs and share your notes via email or cloud services.

**Highlights:** Fast PDF display and page turning, Finger-writing and annotation tools, Import PDFs via Dropbox, Email, iTunes, Categorized bookshelves with search, Export annotated PDFs, Password-protected bookshelves

**Features:** Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2-Month Pass | $0.99 | one-time |
| 1-Year Path | $2.99 | one-time |
| Lifetime License | $4.99 | one-time |


### C1Net

[App page](https://appshunter.io/ios/app/c1net/id6755689344)

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

**In-app purchases:** none


## Frequently asked questions

### Is pdf free?

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

### Is C1Net free?

C1Net is free to download, with no in-app purchases.

### Do pdf or C1Net have ads?

pdf shows ads; C1Net does not.

### Which is updated more often, pdf or C1Net?

pdf ships an update every 5 weeks, and C1Net every 8 months. Most recently, pdf was updated on October 4, 2026 and C1Net on September 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.*