# 発車メロディーコレクション vs Spot Diff Creator with AI

The clearest difference is update cadence: Spot Diff Creator with AI at every 2 days against 発車メロディーコレクション's every 9 days. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 発車メロディーコレクション sells 2 in-app purchases, starting at $2.99 per month and Spot Diff Creator with AI sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

発車メロディーコレクション ships an update every 9 days, Spot Diff Creator with AI every 2 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | 発車メロディーコレクション | Spot Diff Creator with AI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 9 days | **Every 2 days** |
| Size | 78 MB | 19 MB |
| Requires iOS | 18.6 | **18.5** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Imaizumi Kei](https://appshunter.io/developer/1803264759) | [Yuto Inagaki](https://appshunter.io/developer/1733484400) |

## What reviewers say

### 発車メロディーコレクション

[App page](https://appshunter.io/ios/app/id6749940085)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Proプラン | $2.99 | per month |
| Proプラン 年額 | $29.99 | per year |


### Spot Diff Creator with AI

[App page](https://appshunter.io/ios/app/spot-diff-creator-with-ai/id6767998994)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 5 points | $0.49 | one-time |
| 15 points | $1.99 | one-time |
| 35 points | $3.99 | one-time |
| 80 points | $5.99 | one-time |


## Frequently asked questions

### Is 発車メロディーコレクション free?

発車メロディーコレクション is free to download, with in-app purchases available.

### Is Spot Diff Creator with AI free?

Spot Diff Creator with AI is free to download, with in-app purchases available.

### Do 発車メロディーコレクション or Spot Diff Creator with AI have ads?

Both 発車メロディーコレクション and Spot Diff Creator with AI show ads.

### Which is updated more often, 発車メロディーコレクション or Spot Diff Creator with AI?

発車メロディーコレクション ships an update every 9 days, and Spot Diff Creator with AI every 2 days. Most recently, 発車メロディーコレクション was updated on October 30, 2026 and Spot Diff Creator with AI on October 31, 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.*