# Calc+α — Save Calculation/Recalculate

> A calculator app with history, editing, and tax calculation features. (iPhone/iPad app by Ariane Inc..)

- Source: https://appshunter.io/ios/app/calc-plus/id1454376672 (this page in markdown: same URL + `.md`)
- Developer: [Ariane Inc.](https://appshunter.io/developer/449595295)
- Category: Utilities, Shopping
- Price: Free
- Age rating: 4+
- Requires: iOS 16.4 · 9 MB
- Languages: English, Japanese, Korean, Chinese
- Released: 2019-08-19
- Data updated: 2026-07-27
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/calc-plus/id1454376672/reviews.md

## What is Calc+α?

Calc+α is an app designed to make daily calculations easier and more efficient. Each feature is intuitive, enabling anyone to use it effortlessly. Whenever there's a need for calculations, Calc+α will be your reliable partner.

**Calculation Sheet with History**
Calculator+α saves your past calculations in a list, allowing you to review them anytime.
It displays subtotals for each calculation, making verification simple.
For different purposes like travel or shopping, you can create and copy various sheets to organize your calculations.
No need to note down the calculation results on paper anymore.

**Mistake Correction Feature**
No worries about mistakes.
You can edit past calculations and recalculate.
By changing numbers, adding or removing rows, you can proceed with your calculations accurately.

**Tax Rate Calculation**
Switch between tax-inclusive and tax-exclusive calculations with just one button.
Furthermore, effortlessly switch between standard and reduced tax rates, smoothing out calculations for products with different tax rates.

**Division and Remainder Calculation**
With a clear remainder display, you can instantly grasp intermediate results in calculations.
By setting the truncation position, you can adjust the display of remainders to your liking.
No more headaches with remainders in division.

## Key features

- 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

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/calc-plus/id1454376672/reviews.md

### 2/5 — スーパーで買い物をする時に便利になるかも？

*2025-12-18, version 1.26*

スーパーで買い物をする時に非常に便利になるはず！

便利な所
⚪︎式を編集できる。
⚪︎端に今の合計が出る。
⚪︎コメントを入れ、メモれる。

不便な所
⚫︎UIが特殊なところ。
⚫︎カラーを設定できない所。
⚫︎スーパーで買い物をする以外では、あまり便利ではない。
⚫︎式のウィンドウ内に式をコピー＆ペーストできない。

致命的な所
⚠️些細な操作で、よく落ちるので、あまり使えない。
今後の改善に期待。

### 3/5 — ダークモードにしていると、入力文字が見えない

*2019-12-03, version 1.17*

表題の通りダークモードにしていると、上部のシート部分は白地に黒文字で表示されていますが、入力中の文字色が白のために下地の色と同じになってしまい、見えません。
また、設定画面の文字も見えません。

## Frequently asked questions about Calc+α

### Does Calc+α have ads?

Yes, Calc+α contains advertisements. This allows the app to remain free for users to download and utilize its calculation features.

### How often is Calc+α updated?

Calc+α was last updated on February 6, 2024, with version 1.26. Updates are released periodically to improve functionality and address any issues.

### Can I edit previous calculations in Calc+α?

Yes, Calc+α features a mistake correction function that allows you to edit past calculations. You can change numbers, add, or remove rows to ensure accuracy.

### What devices does Calc+α support?

Calc+α is currently supported on iPhone devices. It is designed to provide a seamless calculation experience on iOS.

### How does Calc+α handle tax calculations?

Calc+α simplifies tax calculations by allowing you to switch between tax-inclusive and tax-exclusive modes with a single button. It also supports switching between standard and reduced tax rates.

### Can I organize different types of calculations in Calc+α?

Yes, you can create and copy various calculation sheets within Calc+α. This is useful for organizing calculations for different purposes like travel or shopping.

### What is the age rating for Calc+α?

Calc+α has an age rating of 4+. This indicates it is suitable for a wide range of users, including children, due to its straightforward and non-complex nature.

### Does Calc+α show remainders clearly in division?

Yes, Calc+α provides a clear remainder display for division calculations. You can also adjust the truncation position to customize how remainders are shown.

## Version history (last 5 releases)

### 1.26 — 2024-02-06

Fixed display issue

### 1.25 — 2023-11-06

bug fix

### 1.24 — 2023-11-02

Bug fix

### 1.23 — 2020-08-18

bug fix

### 1.22 — 2020-03-03

Some design changes

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## More apps by Ariane Inc.

- [ココタッチ - おなじものさがし -](https://appshunter.io/ios/app/id542154397)
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- [SnapTrip](https://appshunter.io/ios/app/snaptrip/id6454590344)

All apps by Ariane Inc.: https://appshunter.io/developer/449595295

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-27.*