# ただの電卓 vs MonDeck

The clearest difference is update cadence: ただの電卓 at fortnightly against MonDeck's every 3 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.

ただの電卓 ships an update fortnightly, MonDeck every 3 months. The most recent releases landed on October 12, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | ただの電卓 | MonDeck |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/id1573909569/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 months |
| Size | 14 MB | 27 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HIROKI HORIGUCHI](https://appshunter.io/developer/1535451720) | [hayate kokubu](https://appshunter.io/developer/1737634621) |

## What reviewers say

### ただの電卓

[App page](https://appshunter.io/ios/app/id1573909569)

**Features:** macOS Compatibility

**In-app purchases:** none


### MonDeck

[App page](https://appshunter.io/ios/app/mondeck/id6749549749)

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

**In-app purchases:** none


## Frequently asked questions

### Is ただの電卓 free?

ただの電卓 is free to download, with no in-app purchases.

### Is MonDeck free?

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

### Do ただの電卓 or MonDeck have ads?

Neither ただの電卓 nor MonDeck shows ads.

### Which is updated more often, ただの電卓 or MonDeck?

ただの電卓 ships an update fortnightly, and MonDeck every 3 months. Most recently, ただの電卓 was updated on October 12, 2026 and MonDeck on October 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.*