# ott.mn vs Green Field Academy

The clearest difference is update cadence: ott.mn at every 3 weeks against Green Field Academy's every 3 months. On price, ads, in-app purchases and device support there is nothing between them.

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

ott.mn ships an update every 3 weeks, Green Field Academy every 3 months. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ott.mn | Green Field Academy |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Size | 83 MB | 59 MB |
| Requires iOS | **15.6** | 16.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 9+ | 4+ |
| Developer | [ECM LLC](https://appshunter.io/developer/1434515342) | [Efficient Way](https://appshunter.io/developer/1630740468) |

## What reviewers say

### ott.mn

[App page](https://appshunter.io/ios/app/ottmn/id6478199128)

**Features:** macOS Compatibility

**In-app purchases:** none


### Green Field Academy

[App page](https://appshunter.io/ios/app/green-field-academy/id6505058052)

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

**In-app purchases:** none


## Frequently asked questions

### Is ott.mn free?

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

### Is Green Field Academy free?

Green Field Academy is free to download, with no in-app purchases.

### Do ott.mn or Green Field Academy have ads?

Neither ott.mn nor Green Field Academy shows ads.

### Which is updated more often, ott.mn or Green Field Academy?

ott.mn ships an update every 3 weeks, and Green Field Academy every 3 months. Most recently, ott.mn was updated on October 30, 2026 and Green Field Academy on October 25, 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.*