# DFORMA vs Concrete Calculator

The clearest difference is in-app purchases: DFORMA at none against Concrete Calculator's 3. DFORMA also leads on update cadence (weekly vs monthly) and iOS requirement (14.0 vs 18.6). Concrete Calculator's advantage is ads (none vs shown). On price, rating, ratings volume and device support there is nothing between them.

Both are free to download. Concrete Calculator sells 3 in-app purchases, starting at $2.99 per month. DFORMA asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for DFORMA against 5.0 for Concrete Calculator. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

DFORMA ships an update weekly, Concrete Calculator monthly. The most recent releases landed on November 9, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | DFORMA | Concrete Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/dforma/id6767935219/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/concrete-calculator-toolkit/id6789881017/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Monthly |
| Monetization | **Ad-supported** | Freemium |
| Size | 56 MB | 22 MB |
| Requires iOS | **14.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Kovan M Salih](https://appshunter.io/developer/1896522442) | [Sobhi Arood](https://appshunter.io/developer/867881944) |

## What reviewers say

### DFORMA

[App page](https://appshunter.io/ios/app/dforma/id6767935219)

This platform offers augmented reality measurement tools, advanced engineering simulations, and AI-powered calculation assistance. Connect with a community of verified engineers, access professional tools for project management, and enroll in specialized training courses to enhance your skills.

**Highlights:** Augmented reality measurement tools, Finite element analysis for structures, AI-powered engineering calculations, BOQ data extraction from documents, Verified engineer community, Project budget and expense tracking, Engineering courses and training

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

**In-app purchases:** none


### Concrete Calculator

[App page](https://appshunter.io/ios/app/concrete-calculator-toolkit/id6789881017)

A comprehensive engineering toolkit for civil professionals and students. Perform accurate construction calculations, estimate materials, and manage projects efficiently. Offers a modern interface with metric and imperial units.

**Highlights:** Concrete Volume Calculator, Rebar Weight Calculator, Unit Converter, Material Estimation, Project Management, PDF & Excel Export, iCloud Sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $9.99 | per year |
| Civil Toolkit Pro | $19.99 | one-time |


## Frequently asked questions

### Is DFORMA free?

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

### Is Concrete Calculator free?

Concrete Calculator is free to download, with in-app purchases available.

### Which has better reviews, DFORMA or Concrete Calculator?

DFORMA and Concrete Calculator are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do DFORMA or Concrete Calculator have ads?

DFORMA shows ads; Concrete Calculator does not.

### Which is updated more often, DFORMA or Concrete Calculator?

DFORMA ships an update weekly, and Concrete Calculator monthly. Most recently, DFORMA was updated on November 9, 2026 and Concrete Calculator on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*