# mGreen Collector vs Bách Khoa Apps

The clearest difference is update cadence: Bách Khoa Apps at every 6 days against mGreen Collector's monthly. mGreen Collector's advantage is iOS requirement (11.0 vs 16.6). 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.

mGreen Collector ships an update monthly, Bách Khoa Apps every 6 days. The most recent releases landed on September 8, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | mGreen Collector | Bách Khoa Apps |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 6 days** |
| Size | 35 MB | 151 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [MGREEN SOCIAL SERVICES JOINT STOCK COMPANY](https://appshunter.io/developer/1664357372) | [BACH KHOA HA NOI CONSULTING AND TECHNOLOGY DEVELOPMENT COMPANY LIMITED](https://appshunter.io/developer/1645048410) |

## What reviewers say

### mGreen Collector

[App page](https://appshunter.io/ios/app/mgreen-collector/id1403684985)

**Features:** macOS Compatibility

**In-app purchases:** none


### Bách Khoa Apps

[App page](https://appshunter.io/ios/app/bach-khoa-apps/id6739036642)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is mGreen Collector free?

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

### Is Bách Khoa Apps free?

Bách Khoa Apps is free to download, with no in-app purchases.

### Do mGreen Collector or Bách Khoa Apps have ads?

Neither mGreen Collector nor Bách Khoa Apps shows ads.

### Which is updated more often, mGreen Collector or Bách Khoa Apps?

mGreen Collector ships an update monthly, and Bách Khoa Apps every 6 days. Most recently, mGreen Collector was updated on September 8, 2026 and Bách Khoa Apps on September 11, 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.*