# Concrete Engineering vs Uncertainty Calculator

The clearest difference is rating: Uncertainty Calculator at 5.0 against Concrete Engineering's 4.2. Uncertainty Calculator also leads on update cadence (every 3 months vs every 23 months). Concrete Engineering's advantage is ratings volume (10 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

Concrete Engineering costs $3.99 and Uncertainty Calculator $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Uncertainty Calculator holds the better App Store score, 5.0 against 4.2. That said, the two scores are not equally well evidenced: Concrete Engineering has 10 ratings behind it against 1, so its average is the more settled of the two.

Concrete Engineering ships an update every 23 months, Uncertainty Calculator every 3 months. The most recent releases landed on October 12, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Concrete Engineering | Uncertainty Calculator |
| --- | --- | --- |
| Price | $3.99 | $3.99 |
| Rating | [4.2 (10 ratings)](https://appshunter.io/ios/app/concrete-engineering/id643608704/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/uncertainty-calculator/id1170905440/reviews)** |
| Number of ratings | **10** | 1 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 3 months** |
| Monetization | Paid | Paid |
| Size | 8 MB | 1 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Roman Volinsky](https://appshunter.io/developer/977951850) |

## What reviewers say

### Concrete Engineering

[App page](https://appshunter.io/ios/app/concrete-engineering/id643608704)

This app provides civil engineers with a comprehensive suite of 56 calculators for concrete design and analysis. It features smart auto-fill pickers, calculation history with PDF export, and direct ACI code references for all calculations.

**Highlights:** 56 concrete and civil engineering calculators, Metric and Imperial unit support, Smart auto-fill pickers, Calculation history with PDF export, ACI 318-19 code references, Detailed formulas included

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

**In-app purchases:** none


### Uncertainty Calculator

[App page](https://appshunter.io/ios/app/uncertainty-calculator/id1170905440)

This app allows users to perform error propagation calculations for mathematical expressions involving uncertain variables. It supports absolute and relative error inputs, various functions, and trigonometric calculations in degrees or radians. The tool helps ensure accurate reporting of results based on estimated errors.

**Highlights:** Error propagation calculations, Absolute and relative error input, Support for mathematical functions, Trigonometric calculations (degrees/radians), Variable combination in expressions, Significant figure guidance

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

**In-app purchases:** none


## Frequently asked questions

### Is Concrete Engineering free?

Concrete Engineering costs $3.99, with no in-app purchases.

### Is Uncertainty Calculator free?

Uncertainty Calculator costs $3.99, with no in-app purchases.

### Which has better reviews, Concrete Engineering or Uncertainty Calculator?

Uncertainty Calculator is rated higher. Concrete Engineering averages 4.2 out of 5 from 10 ratings, while Uncertainty Calculator averages 5.0 from 1 ratings.

### Do Concrete Engineering or Uncertainty Calculator have ads?

Neither Concrete Engineering nor Uncertainty Calculator shows ads.

### Which is updated more often, Concrete Engineering or Uncertainty Calculator?

Concrete Engineering ships an update every 23 months, and Uncertainty Calculator every 3 months. Most recently, Concrete Engineering was updated on October 12, 2026 and Uncertainty Calculator on October 2, 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.*