# 消費税++ vs Rapid & Quick Calculator

The clearest difference is review sentiment: Rapid & Quick Calculator at 91% against 消費税++'s 38%. Rapid & Quick Calculator also leads on in-app purchases (none vs 1). 消費税++'s advantage is update cadence (every 2 months vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 消費税++ sells 1 one-off in-app purchase. Rapid & Quick Calculator asks for nothing beyond the download.

消費税++ ships an update every 2 months, Rapid & Quick Calculator every 5 months. The most recent releases landed on September 19, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | 消費税++ | Rapid & Quick Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.8 (1.5K ratings)](https://appshunter.io/ios/app/rapid-and-quick-calculator/id1046214532/reviews)** |
| Number of ratings | — | **1.5K** |
| Positive reviews | 38.0% of reviews | **90.5% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 43 MB | 7 MB |
| Requires iOS | 18.6 | **17.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Daiko K.K.](https://appshunter.io/developer/430300661) | [KinkumaDesign](https://appshunter.io/developer/385697725) |

## What reviewers say

### 消費税++

[App page](https://appshunter.io/ios/app/plus-plus/id781186973)

Calculate tax-inclusive prices for 5%, 8%, and 10% tax rates instantly. Supports both tax-inclusive and tax-exclusive input, and can also function as a standard calculator. Offers simulation for future tax rates up to 20%.

**Highlights:** Instant tax calculation (5%, 8%, 10%), Input tax-inclusive or exclusive, Standard calculator functionality, Copy/paste and share results, Simulate future tax rates (up to 20%), Ad-free option via subscription

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示アドオン | $9.99 | one-time |


### Rapid & Quick Calculator

[App page](https://appshunter.io/ios/app/rapid-and-quick-calculator/id1046214532)

A user-friendly calculator with essential functions and advanced features like tax and discount calculations. Easily reuse past calculations or edit expressions with intuitive controls. Offers customization options for themes and fonts.

**Highlights:** History Tape for reusing answers, Sales tax calculations, Discount calculations, Precise rounding settings, Customizable themes and fonts, Editable expressions with cursor keys, Share expressions and answers

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 消費税++ free?

消費税++ is free to download, with in-app purchases available.

### Is Rapid & Quick Calculator free?

Rapid & Quick Calculator is free to download, with no in-app purchases.

### Do 消費税++ or Rapid & Quick Calculator have ads?

Both 消費税++ and Rapid & Quick Calculator show ads.

### Which is updated more often, 消費税++ or Rapid & Quick Calculator?

消費税++ ships an update every 2 months, and Rapid & Quick Calculator every 5 months. Most recently, 消費税++ was updated on September 19, 2026 and Rapid & Quick Calculator on September 25, 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.*