# Environmental Engineering Quiz vs EcoField

The clearest difference is in-app purchases: EcoField at none against Environmental Engineering Quiz's 6. EcoField also leads on update cadence (weekly vs every 3 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Environmental Engineering Quiz sells 6 in-app purchases, starting at $9.99 per month. EcoField asks for nothing beyond the download.

Environmental Engineering Quiz ships an update every 3 months, EcoField weekly. The most recent releases landed on June 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Environmental Engineering Quiz | EcoField |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/environmental-engineering-quiz/id6739960303/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | — |
| Size | 23 MB | 38 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Forwa Elade Wunde](https://appshunter.io/developer/1685241344) | [Burak Avar](https://appshunter.io/developer/1694823793) |

## What reviewers say

### Environmental Engineering Quiz

[App page](https://appshunter.io/ios/app/environmental-engineering-quiz/id6739960303)

Master environmental engineering concepts with engaging quizzes covering wastewater treatment, air pollution, and more. Features timed challenges, practice modes, detailed analytics, and offline access. Ideal for students and professionals seeking to enhance their knowledge.

**Highlights:** Comprehensive topic coverage, Expert-designed challenging questions, Real-time feedback and explanations, Multiple quiz modes, Detailed progress analytics, Offline access

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Month | $9.99 | per month |
| 6 Months | $19.99 | per 6 months |
| 1 Year | $29.99 | per year |
| 1500 | $0.99 | one-time |
| 3500 | $1.99 | one-time |
| 9000 | $3.99 | one-time |


### EcoField

[App page](https://appshunter.io/ios/app/ecofield/id6761442150)

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

**In-app purchases:** none


## Frequently asked questions

### Is Environmental Engineering Quiz free?

Environmental Engineering Quiz is free to download, with in-app purchases available.

### Is EcoField free?

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

### Do Environmental Engineering Quiz or EcoField have ads?

Neither Environmental Engineering Quiz nor EcoField shows ads.

### Which is updated more often, Environmental Engineering Quiz or EcoField?

Environmental Engineering Quiz ships an update every 3 months, and EcoField weekly. Most recently, Environmental Engineering Quiz was updated on June 1, 2026 and EcoField on September 23, 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.*