# TurboPDF vs Project Blue App

The clearest difference is in-app purchases: Project Blue App at none against TurboPDF's 4. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. TurboPDF sells 4 in-app purchases, starting at $4.99 per month. Project Blue App asks for nothing beyond the download.

TurboPDF ships an update every 3 months, Project Blue App every 2 months. Both last shipped on October 30, 2026.

## The numbers

| Metric | TurboPDF | Project Blue App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/turbopdf-ai-note-taker/id6743954048/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 27 MB | 32 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Defuse ML LLC](https://appshunter.io/developer/1805306627) | [Naxum LLC](https://appshunter.io/developer/1361543869) |

## What reviewers say

### TurboPDF

[App page](https://appshunter.io/ios/app/turbopdf-ai-note-taker/id6743954048)

Interact with your PDF documents using AI. Ask questions, get instant answers, generate summaries, and create smart notes from any file. Supports large documents and multiple languages.

**Highlights:** Ask questions about PDFs, Summarize complex content, Generate AI notes, Smart document history, Supports large PDFs (up to 100 MB), Multi-language support

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Basic Monthly | $4.99 | per month |
| Premium Monthly | $14.99 | per month |
| Basic Annually | $39.99 | per year |
| Premium Annually | $99.99 | per year |


### Project Blue App

[App page](https://appshunter.io/ios/app/project-blue-app/id6755690652)

**In-app purchases:** none


## Frequently asked questions

### Is TurboPDF free?

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

### Is Project Blue App free?

Project Blue App is free to download, with no in-app purchases.

### Do TurboPDF or Project Blue App have ads?

Neither TurboPDF nor Project Blue App shows ads.

### Which is updated more often, TurboPDF or Project Blue App?

TurboPDF ships an update every 3 months, and Project Blue App every 2 months. Most recently, TurboPDF was updated on October 30, 2026 and Project Blue App on October 30, 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.*