# 工場電卓 vs Calc+α

The clearest difference is in-app purchases: Calc+α at none against 工場電卓's 2. Calc+α also leads on update cadence (every 3 weeks vs every 13 months). 工場電卓's advantage is ads (none vs shown) and device support (3 vs 1). On price there is nothing between them.

Both are free to download. 工場電卓 sells 2 one-off in-app purchases. Calc+α asks for nothing beyond the download.

工場電卓 ships an update every 13 months, Calc+α every 3 weeks. The most recent releases landed on October 10, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | 工場電卓 | Calc+α |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 13 months | **Every 3 weeks** |
| Monetization | — | Ad-supported |
| Size | 2 MB | 9 MB |
| Requires iOS | **6.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Tashiro Iron Works Co.,Ltd.](https://appshunter.io/developer/543101242) | [Ariane Inc.](https://appshunter.io/developer/449595295) |

## What reviewers say

### 工場電卓

[App page](https://appshunter.io/ios/app/id780325225)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 工場電卓 広告非表示 | $0.99 | one-time |
| 座標・角度計算機能パック | $0.99 | one-time |


### Calc+α

[App page](https://appshunter.io/ios/app/calc-plus/id1454376672)

This utility app simplifies daily calculations with an intuitive interface. It features a history of your calculations, allows for easy editing and recalculation, and provides convenient tax and division functions. Organize your finances and avoid manual note-taking.

**Highlights:** Calculation history and review, Edit past calculations and recalculate, Tax-inclusive and exclusive calculation modes, Standard and reduced tax rate switching, Clear division and remainder display, Create and copy calculation sheets

**In-app purchases:** none


## Frequently asked questions

### Is 工場電卓 free?

工場電卓 is free to download, with in-app purchases available.

### Is Calc+α free?

Calc+α is free to download, with no in-app purchases.

### Do 工場電卓 or Calc+α have ads?

Calc+α shows ads; 工場電卓 does not.

### Which is updated more often, 工場電卓 or Calc+α?

工場電卓 ships an update every 13 months, and Calc+α every 3 weeks. Most recently, 工場電卓 was updated on October 10, 2026 and Calc+α on October 3, 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.*