# Ai Note vs 乗換アラーム

The clearest difference is in-app purchases: 乗換アラーム at none against Ai Note's 4. 乗換アラーム also leads on update cadence (every 2 weeks vs every 13 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Ai Note sells 4 one-off in-app purchases. 乗換アラーム asks for nothing beyond the download.

Ai Note ships an update every 13 months, 乗換アラーム every 2 weeks. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Ai Note | 乗換アラーム |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Size | 102 MB | 37 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [aiz-one Inc.](https://appshunter.io/developer/1550071561) | [Shun Waida](https://appshunter.io/developer/1872552833) |

## What reviewers say

### Ai Note

[App page](https://appshunter.io/ios/app/ai-note/id1550071559)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10ポイント | $0.99 | one-time |
| 25ポイント | $1.99 | one-time |
| 50ポイント | $3.99 | one-time |
| 100ポイント | $7.99 | one-time |


### 乗換アラーム

[App page](https://appshunter.io/ios/app/id6758363756)

**In-app purchases:** none


## Frequently asked questions

### Is Ai Note free?

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

### Is 乗換アラーム free?

乗換アラーム is free to download, with no in-app purchases.

### Do Ai Note or 乗換アラーム have ads?

Both Ai Note and 乗換アラーム show ads.

### Which is updated more often, Ai Note or 乗換アラーム?

Ai Note ships an update every 13 months, and 乗換アラーム every 2 weeks. Most recently, Ai Note was updated on October 15, 2026 and 乗換アラーム on October 9, 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.*