# Physics Toolbox Sensor Suite vs PubReader

The clearest difference is rating: Physics Toolbox Sensor Suite at 4.7 against PubReader's 2.8. Physics Toolbox Sensor Suite also leads on update cadence (weekly vs every 2 months) and ratings volume (1.8K vs 4). PubReader's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Physics Toolbox Sensor Suite sells 1 one-off in-app purchase. PubReader asks for nothing beyond the download.

Physics Toolbox Sensor Suite holds the better App Store score, 4.7 against 2.8. That said, the two scores are not equally well evidenced: Physics Toolbox Sensor Suite has 1.8K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 81% of Physics Toolbox Sensor Suite's written reviews are positive against 67% of PubReader's.

Physics Toolbox Sensor Suite ships an update weekly, PubReader every 2 months. The most recent releases landed on October 2, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Physics Toolbox Sensor Suite | PubReader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (1.8K ratings)](https://appshunter.io/ios/app/physics-toolbox-sensor-suite/id1128914250/reviews)** | [2.8 (4 ratings)](https://appshunter.io/ios/app/pubreader/id1250557252/reviews) |
| Number of ratings | **1.8K** | 4 |
| Positive reviews | **80.6% of reviews** | 66.7% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 78 MB | 67 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Chrystian Vieyra](https://appshunter.io/developer/998187453) | [PubCoder](https://appshunter.io/developer/918409960) |

## What reviewers say

### Physics Toolbox Sensor Suite

[App page](https://appshunter.io/ios/app/physics-toolbox-sensor-suite/id1128914250)

This app turns your smartphone into a scientific instrument suite, enabling measurement, recording, analysis, and export of real-time sensor data. It offers tools for kinematics, acoustics, light, magnetism, and more, suitable for students, educators, researchers, and hobbyists.

**Highlights:** Real-time sensor data measurement, Data recording and analysis, Data export functionality, Kinematics tools (accelerometer, gyroscope), Acoustics tools (sound meter, oscilloscope), Magnetism tools (compass, magnetometer), AR visualization for magnetic fields and measurements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Upgrade to Pro | $5.99 | one-time |


### PubReader

[App page](https://appshunter.io/ios/app/pubreader/id1250557252)

This app allows you to live preview interactive publications created with its companion desktop software. You can also distribute your XPUB publications for free to friends, customers, or colleagues without needing app store accounts.

**Highlights:** Live preview of publications, Distribute XPUB content for free, Supports EPUB and native app formats, No developer/app store accounts needed, Share via email or file sharing services

**In-app purchases:** none


## Frequently asked questions

### Is Physics Toolbox Sensor Suite free?

Physics Toolbox Sensor Suite is free to download, with in-app purchases available.

### Is PubReader free?

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

### Which has better reviews, Physics Toolbox Sensor Suite or PubReader?

Physics Toolbox Sensor Suite is rated higher. Physics Toolbox Sensor Suite averages 4.7 out of 5 from 1.8K ratings, while PubReader averages 2.8 from 4 ratings.

### Do Physics Toolbox Sensor Suite or PubReader have ads?

Neither Physics Toolbox Sensor Suite nor PubReader shows ads.

### Which is updated more often, Physics Toolbox Sensor Suite or PubReader?

Physics Toolbox Sensor Suite ships an update weekly, and PubReader every 2 months. Most recently, Physics Toolbox Sensor Suite was updated on October 2, 2026 and PubReader on September 17, 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.*