# Deflection Pro vs Smart Calculator Pro

The clearest difference is price: Smart Calculator Pro at $7.99 against Deflection Pro's $19.99. Smart Calculator Pro also leads on rating (5.0 vs 4.7). Deflection Pro's advantage is ratings volume (16 vs 2). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Deflection Pro costs $19.99 and Smart Calculator Pro $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Smart Calculator Pro holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Deflection Pro has 16 ratings behind it against 2, so its average is the more settled of the two.

Deflection Pro ships an update every 5 weeks, Smart Calculator Pro every 2 months. Both last shipped on October 21, 2026.

## The numbers

| Metric | Deflection Pro | Smart Calculator Pro |
| --- | --- | --- |
| Price | $19.99 | **$7.99** |
| Rating | [4.7 (16 ratings)](https://appshunter.io/ios/app/deflection-pro/id1217160203/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-calculator-pro/id6469614398/reviews)** |
| Number of ratings | **16** | 2 |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | Paid | Paid |
| Size | 163 MB | 14 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Blue Ketchep](https://appshunter.io/developer/1131834248) | [晖明 甘](https://appshunter.io/developer/1684180474) |

## What reviewers say

### Deflection Pro

[App page](https://appshunter.io/ios/app/deflection-pro/id1217160203)

This advanced structural analysis calculator assists engineers with beam, truss, and frame design. It generates load combinations based on American and European standards and performs detailed beam column capacity checks. Results are presented intuitively, with options to export to PDF and save files.

**Highlights:** Beam, truss, and frame analysis, Load combination generation (US & EU standards), Beam column capacity checks (flexure, shear, tension, compression), Detailed design checks for various buckling types, PDF export, Save to external file

**Features:** Vision Pro support

**In-app purchases:** none


### Smart Calculator Pro

[App page](https://appshunter.io/ios/app/smart-calculator-pro/id6469614398)

This all-in-one calculator offers basic, scientific, and fraction calculations, along with unit conversion and financial tools. It features an editable input, a widget, and a keyboard extension for convenient use on iPhones and iPads. Track health metrics and convert numbers to words with this comprehensive utility.

**Highlights:** Basic and scientific calculations, Fraction and editable input, Unit and currency converter, BMI, date, and loan calculators, Number to words conversion, Hexadecimal converter, Calculator widget and keyboard

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Deflection Pro free?

Deflection Pro costs $19.99, with no in-app purchases.

### Is Smart Calculator Pro free?

Smart Calculator Pro costs $7.99, with no in-app purchases.

### Which has better reviews, Deflection Pro or Smart Calculator Pro?

Smart Calculator Pro is rated higher. Deflection Pro averages 4.7 out of 5 from 16 ratings, while Smart Calculator Pro averages 5.0 from 2 ratings.

### Do Deflection Pro or Smart Calculator Pro have ads?

Neither Deflection Pro nor Smart Calculator Pro shows ads.

### Which is updated more often, Deflection Pro or Smart Calculator Pro?

Deflection Pro ships an update every 5 weeks, and Smart Calculator Pro every 2 months. Most recently, Deflection Pro was updated on October 21, 2026 and Smart Calculator Pro on October 21, 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.*