# Queue App vs Concrete Calculator

The clearest difference is in-app purchases: Queue App at none against Concrete Calculator's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Concrete Calculator sells 1 one-off in-app purchase. Queue App asks for nothing beyond the download.

Queue App ships an update every 2 months, Concrete Calculator every 3 months. The most recent releases landed on October 6, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | Queue App | Concrete Calculator |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Size | 72 MB | 39 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Hossam Moustafa](https://appshunter.io/developer/1756090862) | [Shital Gorasiya](https://appshunter.io/developer/1737199158) |

## What reviewers say

### Queue App

[App page](https://appshunter.io/ios/app/queue-app/id6523430643)

**Features:** macOS Compatibility

**In-app purchases:** none


### Concrete Calculator

[App page](https://appshunter.io/ios/app/concrete-calculator-solidmix/id6751228843)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Purchase | $4.99 | one-time |


## Frequently asked questions

### Is Queue App free?

Queue App 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 Queue App or Concrete Calculator have ads?

Neither Queue App nor Concrete Calculator shows ads.

### Which is updated more often, Queue App or Concrete Calculator?

Queue App ships an update every 2 months, and Concrete Calculator every 3 months. Most recently, Queue App was updated on October 6, 2026 and Concrete Calculator on October 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.*