# TaplessNote vs ダクトサイズ計算Pro

The clearest difference is in-app purchases: ダクトサイズ計算Pro at none against TaplessNote's 1. ダクトサイズ計算Pro also leads on update cadence (every 2 days vs every 2 weeks) and iOS requirement (15.1 vs 17.0). TaplessNote's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. TaplessNote sells 1 one-off in-app purchase. ダクトサイズ計算Pro asks for nothing beyond the download.

TaplessNote ships an update every 2 weeks, ダクトサイズ計算Pro every 2 days. The most recent releases landed on October 8, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | TaplessNote | ダクトサイズ計算Pro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | Every 2 weeks | **Every 2 days** |
| Size | 2 MB | 34 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Takahiko Kawakami](https://appshunter.io/developer/1826674355) | [takesi shutou](https://appshunter.io/developer/6778977894) |

## What reviewers say

### TaplessNote

[App page](https://appshunter.io/ios/app/taplessnote/id6748627409)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Features | $2.99 | one-time |


### 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


## Frequently asked questions

### Is TaplessNote free?

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

### 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.

### Do TaplessNote or ダクトサイズ計算Pro have ads?

ダクトサイズ計算Pro shows ads; TaplessNote does not.

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

TaplessNote ships an update every 2 weeks, and ダクトサイズ計算Pro every 2 days. Most recently, TaplessNote was updated on October 8, 2026 and ダクトサイズ計算Pro on October 13, 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.*