# greenGENE vs ChatQLM

The clearest difference is in-app purchases: greenGENE at none against ChatQLM's 5. ChatQLM's advantage is update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. ChatQLM sells 5 in-app purchases, starting at $19.99 per month. greenGENE asks for nothing beyond the download.

greenGENE ships an update monthly, ChatQLM every 5 days. The most recent releases landed on June 24, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | greenGENE | ChatQLM |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Monetization | Free | — |
| Size | 19 MB | 13 MB |
| Requires iOS | **14.0** | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Quacito LLC](https://appshunter.io/developer/631959735) | [SuperQ Quantum Computing Inc](https://appshunter.io/developer/1861467414) |

## What reviewers say

### greenGENE

[App page](https://appshunter.io/ios/app/greengene/id1429856765)

This app promotes environmental awareness and capacity building for organized tree planting. It leverages technology to provide data for plantation planning and allows users to gift trees, volunteer for planting, and track tree maintenance.

**Highlights:** Organized plantation planning, Environmental sensitization, Tree gifting with QR codes, Volunteer opportunities, Tree status and maintenance tracking, Eco-balance promotion

**In-app purchases:** none


### ChatQLM

[App page](https://appshunter.io/ios/app/chatqlm/id6756572567)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Explorer | $19.99 | per month |
| Optimizer | $79.99 | per month |
| Explorer (Yearly) | $199.99 | per year |
| Scaler | $199.99 | per month |
| Optimizer (Yearly) | $790.00 | per year |


## Frequently asked questions

### Is greenGENE free?

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

### Is ChatQLM free?

ChatQLM is free to download, with in-app purchases available.

### Do greenGENE or ChatQLM have ads?

Neither greenGENE nor ChatQLM shows ads.

### Which is updated more often, greenGENE or ChatQLM?

greenGENE ships an update monthly, and ChatQLM every 5 days. Most recently, greenGENE was updated on June 24, 2026 and ChatQLM on September 27, 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.*