# NetPDF vs Spider Notes

The clearest difference is ads: Spider Notes at none against NetPDF's shown. Spider Notes also leads on update cadence (every 4 days vs every 6 weeks). NetPDF's advantage is iOS requirement (18.2 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

NetPDF ships an update every 6 weeks, Spider Notes every 4 days. Both last shipped on November 5, 2026.

## The numbers

| Metric | NetPDF | Spider Notes |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/netpdf/id6749868392/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 1.1 GB | 3 MB |
| Requires iOS | **18.2** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Deep Simplicity LLC](https://appshunter.io/developer/1832534541) | [Luke Mclaughlin](https://appshunter.io/developer/1893671036) |

## What reviewers say

### NetPDF

[App page](https://appshunter.io/ios/app/netpdf/id6749868392)

This AI-powered PDF reader and editor allows users to read, annotate, edit, and summarize documents directly on their device. It offers on-device privacy for all AI features, ensuring no document data is sent externally. Enjoy smart search, text-to-speech, and seamless organization.

**Highlights:** On-device AI summarization and Q&A, Touch-first PDF reading and annotation, High-fidelity PDF rendering and editing, Integrated Text-to-Speech, Smart search and navigation, Offline operation for all features

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

**In-app purchases:** none


### Spider Notes

[App page](https://appshunter.io/ios/app/spider-notes-mind-maps/id6787766534)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NetPDF free?

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

### Is Spider Notes free?

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

### Do NetPDF or Spider Notes have ads?

NetPDF shows ads; Spider Notes does not.

### Which is updated more often, NetPDF or Spider Notes?

NetPDF ships an update every 6 weeks, and Spider Notes every 4 days. Most recently, NetPDF was updated on November 5, 2026 and Spider Notes on November 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.*