# PhysicsGraph vs 消防設備士 乙6・甲4・乙4・乙7 一問一答

The clearest difference is in-app purchases: PhysicsGraph at none against 消防設備士 乙6・甲4・乙4・乙7 一問一答's 4. PhysicsGraph also leads on device support (3 vs 1) and iOS requirement (9.0 vs 16.0). On price, update cadence and ads there is nothing between them.

Both are free to download. 消防設備士 乙6・甲4・乙4・乙7 一問一答 sells 4 one-off in-app purchases. PhysicsGraph asks for nothing beyond the download.

PhysicsGraph ships an update every 5 days, 消防設備士 乙6・甲4・乙4・乙7 一問一答 every 3 days. The most recent releases landed on October 7, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | PhysicsGraph | 消防設備士 乙6・甲4・乙4・乙7 一問一答 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 12 MB | 14 MB |
| Requires iOS | **9.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Yaneurabeya](https://appshunter.io/developer/380856441) | [Particles and Waves](https://appshunter.io/developer/1812653811) |

## What reviewers say

### PhysicsGraph

[App page](https://appshunter.io/ios/app/physicsgraph/id1214718820)

**Features:** macOS Compatibility

**In-app purchases:** none


### 消防設備士 乙6・甲4・乙4・乙7 一問一答

[App page](https://appshunter.io/ios/app/6447/id6818698266)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Otsu 6 Pro (Full Unlock) | $2.99 | one-time |
| Kou 4 Pro (Full Unlock) | $2.99 | one-time |
| Otsu 7 Pro (Full Unlock) | $2.99 | one-time |
| Otsu 4 Pro (Full Unlock) | $2.99 | one-time |


## Frequently asked questions

### Is PhysicsGraph free?

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

### Is 消防設備士 乙6・甲4・乙4・乙7 一問一答 free?

消防設備士 乙6・甲4・乙4・乙7 一問一答 is free to download, with in-app purchases available.

### Do PhysicsGraph or 消防設備士 乙6・甲4・乙4・乙7 一問一答 have ads?

Neither PhysicsGraph nor 消防設備士 乙6・甲4・乙4・乙7 一問一答 shows ads.

### Which is updated more often, PhysicsGraph or 消防設備士 乙6・甲4・乙4・乙7 一問一答?

PhysicsGraph ships an update every 5 days, and 消防設備士 乙6・甲4・乙4・乙7 一問一答 every 3 days. Most recently, PhysicsGraph was updated on October 7, 2026 and 消防設備士 乙6・甲4・乙4・乙7 一問一答 on October 24, 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.*