# ECOSTUDY vs Greenfield Zone

The clearest difference is iOS requirement: ECOSTUDY at 11.0 against Greenfield Zone's 13.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ECOSTUDY ships an update monthly, Greenfield Zone every 3 weeks. The most recent releases landed on September 10, 2026 and July 5, 2026 respectively.

## The numbers

| Metric | ECOSTUDY | Greenfield Zone |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[2.7 (7 ratings)](https://appshunter.io/ios/app/greenfield-zone/id6443661383/reviews)** |
| Number of ratings | — | **7** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 103 MB | 88 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MEGASCHOOL TECHNOLOGY EDUCATION JOINT STOCK COMPANY](https://appshunter.io/developer/1598088285) | [Greenfield School](https://appshunter.io/developer/1648151435) |

## What reviewers say

### ECOSTUDY

[App page](https://appshunter.io/ios/app/ecostudy/id1474114784)

**Features:** macOS Compatibility

**In-app purchases:** none


### Greenfield Zone

[App page](https://appshunter.io/ios/app/greenfield-zone/id6443661383)

This app connects schools, teachers, and students to manage academic achievements and school activities. Students earn points redeemable for rewards, fostering friendly competition. Parents can also manage points and rewards for younger children.

**Highlights:** Reward point management, Student leaderboards, Class leaderboards, Coin management, Gift redemption, School activity updates

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ECOSTUDY free?

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

### Is Greenfield Zone free?

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

### Do ECOSTUDY or Greenfield Zone have ads?

Neither ECOSTUDY nor Greenfield Zone shows ads.

### Which is updated more often, ECOSTUDY or Greenfield Zone?

ECOSTUDY ships an update monthly, and Greenfield Zone every 3 weeks. Most recently, ECOSTUDY was updated on September 10, 2026 and Greenfield Zone on July 5, 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.*