# PDFToolbox vs Supernote

The clearest difference is update cadence: Supernote at weekly against PDFToolbox's every 7 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. PDFToolbox sells 3 in-app purchases, starting at $0.99 per 7 days and Supernote sells 2 in-app purchases, starting at $4.99 per year. Whichever you choose, the download price is not the number that matters.

PDFToolbox ships an update every 7 months, Supernote weekly. The most recent releases landed on June 1, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | PDFToolbox | Supernote |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pdftoolbox-converterwatermark/id6744648102/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 8 MB | 31 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [钊辰 王](https://appshunter.io/developer/1791406641) | [亮军 涂](https://appshunter.io/developer/1832996559) |

## What reviewers say

### PDFToolbox

[App page](https://appshunter.io/ios/app/pdftoolbox-converterwatermark/id6744648102)

This app offers a suite of tools for local PDF processing, including converting PDFs to images and vice versa, adding text watermarks, and encrypting/decrypting documents with passwords. It prioritizes user privacy by performing all operations on the device without internet access.

**Highlights:** Convert PDF to Image (JPG, PNG, GIF), Convert Image to PDF, Add custom text watermarks, Encrypt PDFs with passwords, Remove PDF password protection, Batch export and multi-image processing

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $0.99 | per 7 days |
| Yearly | $9.99 | per year |
| Lifetime | $29.99 | one-time |


### Supernote

[App page](https://appshunter.io/ios/app/supernote-note-and-reminder/id6751161764)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Year VIP | $4.99 | per year |
| Lifetime Membership | $7.99 | one-time |


## Frequently asked questions

### Is PDFToolbox free?

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

### Is Supernote free?

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

### Do PDFToolbox or Supernote have ads?

Neither PDFToolbox nor Supernote shows ads.

### Which is updated more often, PDFToolbox or Supernote?

PDFToolbox ships an update every 7 months, and Supernote weekly. Most recently, PDFToolbox was updated on June 1, 2026 and Supernote on September 5, 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.*