# PosiTector vs FileOpen PDF Viewer

The clearest difference is rating: PosiTector at 3.6 against FileOpen PDF Viewer's 1.0. PosiTector also leads on update cadence (monthly vs every 10 months) and review sentiment (25% vs 13%). FileOpen PDF Viewer's advantage is iOS requirement (11 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

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

PosiTector holds the better App Store score, 3.6 against 1.0. That said, the two scores are not equally well evidenced: PosiTector has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 25% of PosiTector's written reviews are positive against 13% of FileOpen PDF Viewer's.

PosiTector ships an update monthly, FileOpen PDF Viewer every 10 months. The most recent releases landed on September 13, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | PosiTector | FileOpen PDF Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.6 (10 ratings)](https://appshunter.io/ios/app/positector/id930648414/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/fileopen-pdf-viewer/id1645208749/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | **25.0% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 10 months |
| Monetization | Free | Free |
| Size | 7 MB | 120 MB |
| Requires iOS | 15.0 | **11** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DeFelsko Corporation](https://appshunter.io/developer/541211994) | [FileOpen Systems Inc.](https://appshunter.io/developer/520287058) |

## What reviewers say

### PosiTector

[App page](https://appshunter.io/ios/app/positector/id930648414)

This app connects advanced measurement devices to your smart device for data management and reporting. It allows for easy creation of custom PDF reports, annotation of readings with images, and seamless cloud backup and sharing of data. Enhance your workflow with intuitive data handling and professional report generation.

**Highlights:** Connects advanced measurement devices, Generate custom PDF reports, Add images and annotations to readings, Cloud backup and synchronization, Multi-batch reporting, Export data to PosiSoft Desktop

**Features:** macOS Compatibility

**In-app purchases:** none


### FileOpen PDF Viewer

[App page](https://appshunter.io/ios/app/fileopen-pdf-viewer/id1645208749)

This application allows users to view PDFs that have been encrypted using FileOpen technology on their Apple devices. It provides a straightforward way to access secure documents on iPhones and iPads.

**Highlights:** View FileOpen encrypted PDFs, Supports Apple devices, Simple document access, Secure PDF viewing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is PosiTector free?

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

### Is FileOpen PDF Viewer free?

FileOpen PDF Viewer is free to download, with no in-app purchases.

### Which has better reviews, PosiTector or FileOpen PDF Viewer?

PosiTector is rated higher. PosiTector averages 3.6 out of 5 from 10 ratings, while FileOpen PDF Viewer averages 1.0 from 1 ratings.

### Do PosiTector or FileOpen PDF Viewer have ads?

Neither PosiTector nor FileOpen PDF Viewer shows ads.

### Which is updated more often, PosiTector or FileOpen PDF Viewer?

PosiTector ships an update monthly, and FileOpen PDF Viewer every 10 months. Most recently, PosiTector was updated on September 13, 2026 and FileOpen PDF Viewer on June 4, 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.*