# 音波線香 vs CaloryNote

The clearest difference is in-app purchases: 音波線香 at none against CaloryNote's 1. 音波線香 also leads on update cadence (every 3 days vs every 3 weeks) and iOS requirement (13.0 vs 18.5). On price, ads and device support there is nothing between them.

Both are free to download. CaloryNote sells 1 one-off in-app purchase. 音波線香 asks for nothing beyond the download.

音波線香 ships an update every 3 days, CaloryNote every 3 weeks. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | 音波線香 | CaloryNote |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 3 weeks |
| Size | 3 MB | 11 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Kyota Sasaki](https://appshunter.io/developer/1638687352) | [moreslowly.jp](https://appshunter.io/developer/406294129) |

## What reviewers say

### 音波線香

[App page](https://appshunter.io/ios/app/id1641662070)

**In-app purchases:** none


### CaloryNote

[App page](https://appshunter.io/ios/app/calorynote/id6748579254)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the Developer | $2.99 | one-time |


## Frequently asked questions

### Is 音波線香 free?

音波線香 is free to download, with no in-app purchases.

### Is CaloryNote free?

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

### Do 音波線香 or CaloryNote have ads?

Neither 音波線香 nor CaloryNote shows ads.

### Which is updated more often, 音波線香 or CaloryNote?

音波線香 ships an update every 3 days, and CaloryNote every 3 weeks. Most recently, 音波線香 was updated on September 21, 2026 and CaloryNote on September 17, 2026.

---

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