# 建設mazec vs UnitConverter byNSDev

The clearest difference is in-app purchases: UnitConverter byNSDev at none against 建設mazec's 1. UnitConverter byNSDev also leads on review sentiment (20% vs 0%). 建設mazec's advantage is iOS requirement (8.0 vs 15.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 建設mazec sells 1 one-off in-app purchase. UnitConverter byNSDev asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 5 months. The most recent releases landed on August 14, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 建設mazec | UnitConverter byNSDev |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/mazec/id1032194799/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | **20.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | Every 5 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 56 MB | 4 MB |
| Requires iOS | **8.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MetaMoJi Corporation](https://appshunter.io/developer/449808118) | [NIHON SYSTEM DEVELOPER CORPORATION](https://appshunter.io/developer/1198103734) |

## What reviewers say

### 建設mazec

[App page](https://appshunter.io/ios/app/mazec/id1032194799)

This app allows for handwriting input of text and specialized construction industry terms across various iOS applications. It offers efficient and accurate text conversion, supporting a wide range of construction vocabulary and learning user handwriting patterns for personalized input.

**Highlights:** Handwriting conversion in any iOS app, Accurate mixed-script conversion, Specialized construction industry dictionary (11,000+ terms), Learns user handwriting patterns, Customizable character and phrase registration, Optimized UI for iPhone and iPad, Enterprise-focused features

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 年額ライセンス | $32.99 | one-time |


### UnitConverter byNSDev

[App page](https://appshunter.io/ios/app/unitconverter-bynsdev/id1229121492)

This tool converts between 26 different types of units, displaying conversion rates and allowing you to specify decimal places. It supports a vast array of units across categories like length, mass, volume, and more.

**Highlights:** Converts 26 types of units, Displays conversion rates, Customizable decimal places, Supports numerous units in various categories, User-submitted unit requests

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

**In-app purchases:** none


## Frequently asked questions

### Is 建設mazec free?

建設mazec is free to download, with in-app purchases available.

### Is UnitConverter byNSDev free?

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

### Do 建設mazec or UnitConverter byNSDev have ads?

Neither 建設mazec nor UnitConverter byNSDev shows ads.

### Which is updated more often, 建設mazec or UnitConverter byNSDev?

建設mazec ships an update every 5 months, and UnitConverter byNSDev every 5 months. Most recently, 建設mazec was updated on August 14, 2026 and UnitConverter byNSDev on September 17, 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.*