# 消防設備士 vs Debt Clock

The clearest difference is ads: 消防設備士 at none against Debt Clock's shown. Debt Clock's advantage is iOS requirement (13.0 vs 16.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. 消防設備士 sells 1 one-off in-app purchase and Debt Clock sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | 消防設備士 | Debt Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 2 days |
| Size | 5 MB | 25 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [TAKAYUKI OOTA](https://appshunter.io/developer/1855196437) | [Kanta Osumi](https://appshunter.io/developer/1872595837) |

## What reviewers say

### 消防設備士

[App page](https://appshunter.io/ios/app/6/id6758174376)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 消防設備士（乙種・6類） 試験対策 | $1.99 | one-time |


### Debt Clock

[App page](https://appshunter.io/ios/app/debt-clock/id6758671250)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| プレミアムプラン（月額） | $1.99 | per month |
| プレミアムプラン（年額） | $14.99 | per year |


## Frequently asked questions

### Is 消防設備士 free?

消防設備士 is free to download, with in-app purchases available.

### Is Debt Clock free?

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

### Do 消防設備士 or Debt Clock have ads?

Debt Clock shows ads; 消防設備士 does not.

---

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