# Quick mental calculation vs Compare Them

The clearest difference is update cadence: Quick mental calculation at every 11 days against Compare Them's every 4 months. On price, ads, in-app purchases and device support 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, Compare Them every 4 months. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Quick mental calculation | Compare Them |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (13 ratings)](https://appshunter.io/ios/app/compare-them/id1435232457/reviews)** |
| Number of ratings | — | **13** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 11 days** | Every 4 months |
| Monetization | — | Ad-supported |
| Size | 21 MB | 22 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [ERX](https://appshunter.io/developer/513941286) | [APPANY SOFTWARE LLC](https://appshunter.io/developer/1435232456) |

## What reviewers say

### Quick mental calculation

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Compare Them

[App page](https://appshunter.io/ios/app/compare-them/id1435232457)

Test your focus and number comparison skills in this challenging game. Race against the clock to select the largest number, aiming to complete levels and beat high scores. Multiple modes offer varied gameplay, including multiplayer options.

**Highlights:** Number comparison challenges, Level-based progression, High score tracking, Calculation Mode, Expert Mode, Multiplayer mode

**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 Compare Them free?

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

### Do Quick mental calculation or Compare Them have ads?

Both Quick mental calculation and Compare Them show ads.

### Which is updated more often, Quick mental calculation or Compare Them?

Quick mental calculation ships an update every 11 days, and Compare Them every 4 months. Most recently, Quick mental calculation was updated on September 29, 2026 and Compare Them on October 6, 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.*