# greenGENE vs nAuth

The clearest difference is update cadence: nAuth at fortnightly against greenGENE's monthly. 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.

greenGENE ships an update monthly, nAuth fortnightly. The most recent releases landed on June 24, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | greenGENE | nAuth |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | — |
| Size | 19 MB | 34 MB |
| Requires iOS | **14.0** | 15.1 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Quacito LLC](https://appshunter.io/developer/631959735) | [Nanostuffs](https://appshunter.io/developer/435673328) |

## 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


### nAuth

[App page](https://appshunter.io/ios/app/nauth-2fa-authenticator-app/id6751160503)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is greenGENE free?

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

### Is nAuth free?

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

### Do greenGENE or nAuth have ads?

Neither greenGENE nor nAuth shows ads.

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

greenGENE ships an update monthly, and nAuth fortnightly. Most recently, greenGENE was updated on June 24, 2026 and nAuth on September 19, 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.*