# iDenomiCalc vs 鋼材tap V1

The clearest difference is in-app purchases: iDenomiCalc at none against 鋼材tap V1's 1. 鋼材tap V1's advantage is review sentiment (75% vs 44%) and update cadence (every 9 days vs every 11 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 鋼材tap V1 sells 1 in-app purchase, starting at $0.99 per month. iDenomiCalc asks for nothing beyond the download.

iDenomiCalc ships an update every 11 months, 鋼材tap V1 every 9 days. The most recent releases landed on September 23, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | iDenomiCalc | 鋼材tap V1 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 44.0% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 11 months | **Every 9 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 6 MB | 49 MB |
| Requires iOS | **17.0** | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Ligha](https://appshunter.io/developer/375352738) | [TOGUCHI, CO., LTD.](https://appshunter.io/developer/668415384) |

## What reviewers say

### iDenomiCalc

[App page](https://appshunter.io/ios/app/idenomicalc/id375352735)

This app simplifies Japanese currency calculations, assisting with tasks like payroll, register reconciliation, and total amount computation. It intelligently displays bills and coins and offers flexible input methods for both quantity and monetary value.

**Highlights:** Denomination calculation for Japanese bills and coins, Input by quantity or amount, Automatic scrolling with ten-key input, Memorizes work contents for session resumes, Clear all input with one button, Warning for non-unit input

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

**In-app purchases:** none


### 鋼材tap V1

[App page](https://appshunter.io/ios/app/tap-v1/id668471425)

This app calculates the weight and surface area of various steel types used in Japan. It supports numerous steel sections, plates, tubes, and pipes, and allows for sharing and emailing calculations. It also offers cross-sectional shape and performance calculations.

**Highlights:** Steel weight calculation, Surface area calculation, Cross-sectional shape and performance calculation, Support for Japanese JIS standards, Extensive steel type library, Share and email calculations, CSV export

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Hide ads | $0.99 | per month |


## Frequently asked questions

### Is iDenomiCalc free?

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

### Is 鋼材tap V1 free?

鋼材tap V1 is free to download, with in-app purchases available.

### Do iDenomiCalc or 鋼材tap V1 have ads?

Both iDenomiCalc and 鋼材tap V1 show ads.

### Which is updated more often, iDenomiCalc or 鋼材tap V1?

iDenomiCalc ships an update every 11 months, and 鋼材tap V1 every 9 days. Most recently, iDenomiCalc was updated on September 23, 2026 and 鋼材tap V1 on September 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*