# 立体?マップ(3D?Map) vs QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級

The clearest difference is in-app purchases: 立体?マップ(3D?Map) at none against QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 sells 1 one-off in-app purchase. 立体?マップ(3D?Map) asks for nothing beyond the download.

立体?マップ(3D?Map) ships an update weekly, QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 every 2 weeks. The most recent releases landed on September 30, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | 立体?マップ(3D?Map) | QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 4 MB | 51 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mayumi Kato](https://appshunter.io/developer/705832872) | [GINOAPPS LLC.](https://appshunter.io/developer/1482621114) |

## What reviewers say

### 立体?マップ(3D?Map)

[App page](https://appshunter.io/ios/app/3dmap/id6461163734)

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

**In-app purchases:** none


### QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級

[App page](https://appshunter.io/ios/app/qc4-4/id6757586574)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全問題アンロック（買い切り） | $1.99 | one-time |


## Frequently asked questions

### Is 立体?マップ(3D?Map) free?

立体?マップ(3D?Map) is free to download, with no in-app purchases.

### Is QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 free?

QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 is free to download, with in-app purchases available.

### Do 立体?マップ(3D?Map) or QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 have ads?

Neither 立体?マップ(3D?Map) nor QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 shows ads.

### Which is updated more often, 立体?マップ(3D?Map) or QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級?

立体?マップ(3D?Map) ships an update weekly, and QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 every 2 weeks. Most recently, 立体?マップ(3D?Map) was updated on September 30, 2026 and QC検定®4級 秒トレ：忘却曲線で覚える品質管理検定®4級 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.*