# NetPDF vs Private AI

The clearest difference is review sentiment: NetPDF at 100% against Private AI's 0%. NetPDF also leads on price (Free vs $4.99) and rating (5.0 vs 3.5). Private AI's advantage is ads (none vs shown) and update cadence (every 2 days vs every 2 months). On ratings volume, in-app purchases and device support there is nothing between them.

NetPDF is free to download; Private AI costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

NetPDF holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 100% of NetPDF's written reviews are positive against 0% of Private AI's.

NetPDF ships an update every 2 months, Private AI every 2 days. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | NetPDF | Private AI |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/netpdf/id6749868392/reviews)** | [3.5 (2 ratings)](https://appshunter.io/ios/app/private-ai-document-chat/id6757301317/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 2 days** |
| Monetization | **Ad-supported** | Paid |
| Size | 1.1 GB | 6 MB |
| Requires iOS | **18.2** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | +12 |
| Developer | [Deep Simplicity LLC](https://appshunter.io/developer/1832534541) | [GTechnologies LLC](https://appshunter.io/developer/1813624050) |

## 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


### Private AI

[App page](https://appshunter.io/ios/app/private-ai-document-chat/id6757301317)

This AI assistant operates entirely offline on your device, ensuring 100% data privacy. It allows you to chat with your documents using specialized AI experts and custom prompts, without any internet connection or data uploads.

**Highlights:** 100% private and offline operation, Chat with PDFs, code, spreadsheets, and more, 25 specialized AI experts and custom prompts, No subscriptions or in-app purchases, Leverages Apple Intelligence models, Zero tracking and zero data uploads

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

**In-app purchases:** none


## Frequently asked questions

### Is NetPDF free?

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

### Is Private AI free?

Private AI costs $4.99, with no in-app purchases.

### Which has better reviews, NetPDF or Private AI?

NetPDF is rated higher. NetPDF averages 5.0 out of 5 from 1 ratings, while Private AI averages 3.5 from 2 ratings.

### Do NetPDF or Private AI have ads?

NetPDF shows ads; Private AI does not.

### Which is updated more often, NetPDF or Private AI?

NetPDF ships an update every 2 months, and Private AI every 2 days. Most recently, NetPDF was updated on October 10, 2026 and Private AI on October 6, 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.*