# Deflection Lite vs PdfToWatchReader Pro

The clearest difference is in-app purchases: Deflection Lite at none against PdfToWatchReader Pro's 2. Deflection Lite also leads on iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. PdfToWatchReader Pro sells 2 in-app purchases, starting at $0.99 per month. Deflection Lite asks for nothing beyond the download.

## The numbers

| Metric | Deflection Lite | PdfToWatchReader Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (46 ratings)](https://appshunter.io/ios/app/deflection-lite/id974474071/reviews)** | — |
| Number of ratings | **46** | — |
| Positive reviews | 44.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | — |
| Monetization | Paid | — |
| Size | 108 MB | 6 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Blue Ketchep](https://appshunter.io/developer/1131834248) | [ZONESOFT S.R.L.](https://appshunter.io/developer/6780032610) |

## What reviewers say

### Deflection Lite

[App page](https://appshunter.io/ios/app/deflection-lite/id974474071)

This app provides interactive and precise structural beam analysis. Easily visualize beam bending by dragging loads and supports, and calculate key engineering results like reactions, shear force, and bending moment.

**Highlights:** Interactive beam bending visualization, Calculate reactions, shear force, and bending moment, Built-in cross-section databases, Unlimited loads and supports, Export design to shareable permalink, Metric and standard units

**Features:** Vision Pro support

**In-app purchases:** none


### PdfToWatchReader Pro

[App page](https://appshunter.io/ios/app/pdftowatchreader-pro/id6780032608)

**Features:** Apple Watch app

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| PdfToWatchReaderPro Premium | $0.99 | per month |
| PdfToWatchReaderPro Premium | $9.99 | per year |


## Frequently asked questions

### Is Deflection Lite free?

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

### Is PdfToWatchReader Pro free?

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

### Do Deflection Lite or PdfToWatchReader Pro have ads?

Neither Deflection Lite nor PdfToWatchReader Pro shows ads.

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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.*