# 音波線香 vs Training with Cards

The clearest difference is ads: 音波線香 at none against Training with Cards's shown. 音波線香 also leads on update cadence (every 3 days vs every 7 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

音波線香 ships an update every 3 days, Training with Cards every 7 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | 音波線香 | Training with Cards |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 7 months |
| Size | 3 MB | 47 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | iPhone, iPod, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kyota Sasaki](https://appshunter.io/developer/1638687352) | [Tomoaki Okubo](https://appshunter.io/developer/1830995076) |

## What reviewers say

### 音波線香

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

**In-app purchases:** none


### Training with Cards

[App page](https://appshunter.io/ios/app/training-with-cards/id6751717549)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 音波線香 free?

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

### Is Training with Cards free?

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

### Do 音波線香 or Training with Cards have ads?

Training with Cards shows ads; 音波線香 does not.

### Which is updated more often, 音波線香 or Training with Cards?

音波線香 ships an update every 3 days, and Training with Cards every 7 months. Most recently, 音波線香 was updated on November 3, 2026 and Training with Cards on October 30, 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.*