# SENSORCheck for VIEWER vs PDF Converter & PDF Reader

The clearest difference is review sentiment: SENSORCheck for VIEWER at 100% against PDF Converter & PDF Reader's 0%. SENSORCheck for VIEWER also leads on rating (5.0 vs 3.0) and in-app purchases (none vs 3). PDF Converter & PDF Reader's advantage is ratings volume (4 vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. PDF Converter & PDF Reader sells 3 in-app purchases, starting at $6.99 per month. SENSORCheck for VIEWER asks for nothing beyond the download.

SENSORCheck for VIEWER holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews point the same way: 100% of SENSORCheck for VIEWER's written reviews are positive against 0% of PDF Converter & PDF Reader's.

SENSORCheck for VIEWER ships an update monthly, PDF Converter & PDF Reader every 53 months. The most recent releases landed on October 20, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | SENSORCheck for VIEWER | PDF Converter & PDF Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sensorcheck-for-viewer/id1146161843/reviews)** | [3.0 (4 ratings)](https://appshunter.io/ios/app/pdf-converter-and-pdf-reader/id1549134393/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 53 months |
| Monetization | **Free** | Freemium |
| Size | 9 MB | 6 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SENSOR CHECK LLC](https://appshunter.io/developer/1146158249) | [Nitin Katrodiya](https://appshunter.io/developer/1530680301) |

## What reviewers say

### SENSORCheck for VIEWER

[App page](https://appshunter.io/ios/app/sensorcheck-for-viewer/id1146161843)

This application allows registered business customers to monitor temperature sensors in their environment. It provides a simple interface for viewing real-time data from these sensors.

**Highlights:** View temperature sensor data, Real-time monitoring, For registered SENSORCheck customers, Environmental monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### PDF Converter & PDF Reader

[App page](https://appshunter.io/ios/app/pdf-converter-and-pdf-reader/id1549134393)

This app offers a comprehensive suite of tools for managing PDF documents. It allows users to scan, edit, convert, compress, merge, and sign PDFs, as well as convert various office file formats to PDF and vice versa. It also supports document encryption and sharing.

**Highlights:** Scan and edit PDFs, Convert office files to PDF and vice versa, Compress PDF file size, Merge and split PDF documents, Sign and encrypt PDFs, Convert images and text to PDF, Share and print PDFs

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Premium Version One Month | $6.99 | per month |
| Get Premium Version Six Month | $24.49 | per 6 months |
| Get Premium Version One Year | $37.99 | per year |


## Frequently asked questions

### Is SENSORCheck for VIEWER free?

SENSORCheck for VIEWER is free to download, with no in-app purchases.

### Is PDF Converter & PDF Reader free?

PDF Converter & PDF Reader is free to download, with in-app purchases available.

### Which has better reviews, SENSORCheck for VIEWER or PDF Converter & PDF Reader?

SENSORCheck for VIEWER is rated higher. SENSORCheck for VIEWER averages 5.0 out of 5 from 1 ratings, while PDF Converter & PDF Reader averages 3.0 from 4 ratings.

### Do SENSORCheck for VIEWER or PDF Converter & PDF Reader have ads?

Neither SENSORCheck for VIEWER nor PDF Converter & PDF Reader shows ads.

### Which is updated more often, SENSORCheck for VIEWER or PDF Converter & PDF Reader?

SENSORCheck for VIEWER ships an update monthly, and PDF Converter & PDF Reader every 53 months. Most recently, SENSORCheck for VIEWER was updated on October 20, 2026 and PDF Converter & PDF Reader on October 7, 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.*