# Concrete Engineering vs DrPhos' Chemistry Pro

The clearest difference is rating: DrPhos' Chemistry Pro at 5.0 against Concrete Engineering's 4.2. DrPhos' Chemistry Pro also leads on update cadence (every 9 days vs every 23 months). Concrete Engineering's advantage is price ($3.99 vs $4.99). On ratings volume, ads, in-app purchases and monetization model there is nothing between them.

Concrete Engineering costs $3.99 and DrPhos' Chemistry Pro $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

DrPhos' Chemistry Pro holds the better App Store score, 5.0 against 4.2. Both are backed by a comparable volume of ratings — 10 and 6 respectively.

Concrete Engineering ships an update every 23 months, DrPhos' Chemistry Pro every 9 days. Both last shipped on November 4, 2026.

## The numbers

| Metric | Concrete Engineering | DrPhos' Chemistry Pro |
| --- | --- | --- |
| Price | **$3.99** | $4.99 |
| Rating | [4.2 (10 ratings)](https://appshunter.io/ios/app/concrete-engineering/id643608704/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/drphos-chemistry-pro/id6477353606/reviews)** |
| Number of ratings | **10** | 6 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 23 months | **Every 9 days** |
| Monetization | Paid | Paid |
| Size | 8 MB | 19 MB |
| Requires iOS | 18.6 | **17.2** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Monte L Helm](https://appshunter.io/developer/1715082616) |

## 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


### DrPhos' Chemistry Pro

[App page](https://appshunter.io/ios/app/drphos-chemistry-pro/id6477353606)

This comprehensive chemistry toolkit simplifies complex calculations and problem-solving for students. It offers tools for stoichiometry, pH, molar mass, and balancing chemical equations, making it ideal for high school and college-level chemistry.

**Highlights:** Science Calculator with sig fig control, Molar Mass Calculator, Equation Balancer, Stoichiometry Solver, pH Calculator, Offline Support

**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 DrPhos' Chemistry Pro free?

DrPhos' Chemistry Pro costs $4.99, with no in-app purchases.

### Which has better reviews, Concrete Engineering or DrPhos' Chemistry Pro?

DrPhos' Chemistry Pro is rated higher. Concrete Engineering averages 4.2 out of 5 from 10 ratings, while DrPhos' Chemistry Pro averages 5.0 from 6 ratings.

### Do Concrete Engineering or DrPhos' Chemistry Pro have ads?

Neither Concrete Engineering nor DrPhos' Chemistry Pro shows ads.

### Which is updated more often, Concrete Engineering or DrPhos' Chemistry Pro?

Concrete Engineering ships an update every 23 months, and DrPhos' Chemistry Pro every 9 days. Most recently, Concrete Engineering was updated on November 4, 2026 and DrPhos' Chemistry Pro on November 4, 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.*