# Quick mental calculation vs Airplane Games Flight Sim 3D

The clearest difference is iOS requirement: Quick mental calculation at 12.0 against Airplane Games Flight Sim 3D's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Quick mental calculation ships an update every 11 days, Airplane Games Flight Sim 3D every 3 weeks. The most recent releases landed on November 6, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | Quick mental calculation | Airplane Games Flight Sim 3D |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 3 weeks |
| Size | 21 MB | 312 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [ERX](https://appshunter.io/developer/513941286) | [Saim Tariq](https://appshunter.io/developer/1788041536) |

## What reviewers say

### Quick mental calculation

[App page](https://appshunter.io/ios/app/quick-mental-calculation/id841970890)

**Features:** macOS Compatibility

**In-app purchases:** none


### Airplane Games Flight Sim 3D

[App page](https://appshunter.io/ios/app/airplane-games-flight-sim-3d/id6743925350)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Quick mental calculation free?

Quick mental calculation is free to download, with no in-app purchases.

### Is Airplane Games Flight Sim 3D free?

Airplane Games Flight Sim 3D is free to download, with no in-app purchases.

### Do Quick mental calculation or Airplane Games Flight Sim 3D have ads?

Both Quick mental calculation and Airplane Games Flight Sim 3D show ads.

### Which is updated more often, Quick mental calculation or Airplane Games Flight Sim 3D?

Quick mental calculation ships an update every 11 days, and Airplane Games Flight Sim 3D every 3 weeks. Most recently, Quick mental calculation was updated on November 6, 2026 and Airplane Games Flight Sim 3D on November 8, 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.*