# ダクトサイズ計算Pro vs Torque Wrench Guide

The clearest difference is in-app purchases: ダクトサイズ計算Pro at none against Torque Wrench Guide's 2. ダクトサイズ計算Pro also leads on device support (3 vs 1). Torque Wrench Guide's advantage is update cadence (daily vs every 2 days). On price, ads and iOS requirement there is nothing between them.

Both are free to download. Torque Wrench Guide sells 2 one-off in-app purchases. ダクトサイズ計算Pro asks for nothing beyond the download.

ダクトサイズ計算Pro ships an update every 2 days, Torque Wrench Guide daily. The most recent releases landed on September 28, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | ダクトサイズ計算Pro | Torque Wrench Guide |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 days | **Daily** |
| Size | 34 MB | 5 MB |
| Requires iOS | **15.1** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [takesi shutou](https://appshunter.io/developer/6778977894) | [Shota Yamada](https://appshunter.io/developer/6779611526) |

## What reviewers say

### ダクトサイズ計算Pro

[App page](https://appshunter.io/ios/app/pro/id6782080002)

**Features:** macOS Compatibility

**In-app purchases:** none


### Torque Wrench Guide

[App page](https://appshunter.io/ios/app/torque-wrench-guide/id6804390938)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy Me a Coffee☕️ | $1.99 | one-time |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is ダクトサイズ計算Pro free?

ダクトサイズ計算Pro is free to download, with no in-app purchases.

### Is Torque Wrench Guide free?

Torque Wrench Guide is free to download, with in-app purchases available.

### Do ダクトサイズ計算Pro or Torque Wrench Guide have ads?

Both ダクトサイズ計算Pro and Torque Wrench Guide show ads.

### Which is updated more often, ダクトサイズ計算Pro or Torque Wrench Guide?

ダクトサイズ計算Pro ships an update every 2 days, and Torque Wrench Guide daily. Most recently, ダクトサイズ計算Pro was updated on September 28, 2026 and Torque Wrench Guide on October 1, 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.*