# 流し vs eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜

The clearest difference is review sentiment: 流し at 75% against eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜's 33%. 流し also leads on price ($1.99 vs $2.99). eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜's advantage is update cadence (every 8 months vs every 25 months) and iOS requirement (12.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

流し costs $1.99 and eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

流し ships an update every 25 months, eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 every 8 months. The most recent releases landed on October 17, 2026 and October 23, 2026 respectively.

## The numbers

| Metric | 流し | eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 |
| --- | --- | --- |
| Price | **$1.99** | $2.99 |
| Positive reviews | **75.0% of reviews** | 33.3% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 8 months** |
| Monetization | — | Paid |
| Size | 23 MB | 25 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [CoLab](https://appshunter.io/developer/509496990) | [株式会社キイロ乃カモ](https://appshunter.io/developer/1796537168) |

## What reviewers say

### 流し

[App page](https://appshunter.io/ios/app/id539330733)

**Features:** macOS Compatibility

**In-app purchases:** none


### eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜

[App page](https://appshunter.io/ios/app/eco/id6449150376)

This app helps you study for the eco-Kentei (Environmental and Social Certification Test) by providing essential vocabulary. It features a quiz mode to test your understanding and allows for keyword searches. Study efficiently offline without any advertisements.

**Highlights:** Essential eco-Kentei vocabulary, Quiz mode with masked vocabulary, Keyword search functionality, Offline usability, Ad-free learning experience

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

**In-app purchases:** none


## Frequently asked questions

### Is 流し free?

流し costs $1.99, with no in-app purchases.

### Is eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 free?

eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 costs $2.99, with no in-app purchases.

### Do 流し or eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 have ads?

Neither 流し nor eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 shows ads.

### Which is updated more often, 流し or eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜?

流し ships an update every 25 months, and eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 every 8 months. Most recently, 流し was updated on October 17, 2026 and eco検定 重要語句アプリ 〜エコ検定/環境社会検定試験〜 on October 23, 2026.

---

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