# eco検定® 秒トレ：忘却曲線で覚えるエコ検定® vs 産業廃棄物処理検定対策 500問

The clearest difference is price: eco検定® 秒トレ：忘却曲線で覚えるエコ検定® at Free against 産業廃棄物処理検定対策 500問's $3.99. eco検定® 秒トレ：忘却曲線で覚えるエコ検定® also leads on iOS requirement (13.0 vs 15.1). 産業廃棄物処理検定対策 500問's advantage is in-app purchases (none vs 1) and update cadence (every 3 weeks vs every 4 months). On ads and device support there is nothing between them.

eco検定® 秒トレ：忘却曲線で覚えるエコ検定® is free to download; 産業廃棄物処理検定対策 500問 costs $3.99 up front. eco検定® 秒トレ：忘却曲線で覚えるエコ検定® sells 1 one-off in-app purchase. 産業廃棄物処理検定対策 500問 asks for nothing beyond the download.

eco検定® 秒トレ：忘却曲線で覚えるエコ検定® ships an update every 4 months, 産業廃棄物処理検定対策 500問 every 3 weeks. The most recent releases landed on September 21, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | eco検定® 秒トレ：忘却曲線で覚えるエコ検定® | 産業廃棄物処理検定対策 500問 |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Positive reviews | 77.8% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 49 MB | 34 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GINOAPPS LLC.](https://appshunter.io/developer/1482621114) | [satoshi yoshida](https://appshunter.io/developer/1873856165) |

## What reviewers say

### eco検定® 秒トレ：忘却曲線で覚えるエコ検定®

[App page](https://appshunter.io/ios/app/eco/id6741779906)

This app helps users prepare for the eco検定® (Environmental Social Certification Exam®) by focusing on key points and utilizing a spaced repetition system based on the forgetting curve. It offers efficient learning through fill-in-the-blank questions and timely reviews to ensure knowledge retention for exam success.

**Highlights:** Key point learning based on past exams, Fill-in-the-blank question format, Spaced repetition based on forgetting curve, Efficient learning in short bursts, Focus on exam trends and frequent points

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 全問題アンロック | $2.99 | one-time |


### 産業廃棄物処理検定対策 500問

[App page](https://appshunter.io/ios/app/500/id6790227103)

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

**In-app purchases:** none


## Frequently asked questions

### Is eco検定® 秒トレ：忘却曲線で覚えるエコ検定® free?

eco検定® 秒トレ：忘却曲線で覚えるエコ検定® is free to download, with in-app purchases available.

### Is 産業廃棄物処理検定対策 500問 free?

産業廃棄物処理検定対策 500問 costs $3.99, with no in-app purchases.

### Do eco検定® 秒トレ：忘却曲線で覚えるエコ検定® or 産業廃棄物処理検定対策 500問 have ads?

Neither eco検定® 秒トレ：忘却曲線で覚えるエコ検定® nor 産業廃棄物処理検定対策 500問 shows ads.

### Which is updated more often, eco検定® 秒トレ：忘却曲線で覚えるエコ検定® or 産業廃棄物処理検定対策 500問?

eco検定® 秒トレ：忘却曲線で覚えるエコ検定® ships an update every 4 months, and 産業廃棄物処理検定対策 500問 every 3 weeks. Most recently, eco検定® 秒トレ：忘却曲線で覚えるエコ検定® was updated on September 21, 2026 and 産業廃棄物処理検定対策 500問 on September 7, 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.*