# convrt vs Concrete Calculator

The clearest difference is in-app purchases: convrt at none against Concrete Calculator's 2. convrt also leads on ads (none vs shown). Concrete Calculator's advantage is update cadence (every 2 weeks vs every 25 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Concrete Calculator sells 2 in-app purchases, starting at $4.99 per month. convrt asks for nothing beyond the download.

convrt ships an update every 25 months, Concrete Calculator every 2 weeks. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | convrt | Concrete Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.3 (14 ratings)](https://appshunter.io/ios/app/concrete-calculator/id6742077717/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 25 months | **Every 2 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 3 MB | 50 MB |
| Requires iOS | **15.6** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Herbert Jonkman](https://appshunter.io/developer/1544763369) | [xNeat.com](https://appshunter.io/developer/327498295) |

## What reviewers say

### convrt

[App page](https://appshunter.io/ios/app/convrt-it/id1544763367)

**Features:** macOS Compatibility

**In-app purchases:** none


### Concrete Calculator

[App page](https://appshunter.io/ios/app/concrete-calculator/id6742077717)

Calculate precise concrete quantities for various construction projects like patios, sidewalks, and walls. Get estimates for materials, including concrete, blocks, rebar, and gravel, in both US customary and metric units. This tool helps save time and money for DIYers and professionals alike.

**Highlights:** Estimate concrete for slabs, footings, walls, and more, Calculate block count and material needs, Determine rebar and mesh reinforcement, Figure gravel and asphalt requirements, Measure area and volume in multiple units, View results in US customary or metric

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Concrete Calculator | $4.99 | per month |
| Concrete Calculator | $39.99 | per year |


## Frequently asked questions

### Is convrt free?

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

### Is Concrete Calculator free?

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

### Do convrt or Concrete Calculator have ads?

Concrete Calculator shows ads; convrt does not.

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

convrt ships an update every 25 months, and Concrete Calculator every 2 weeks. Most recently, convrt was updated on October 27, 2026 and Concrete Calculator on October 28, 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.*