# GreenTech Network vs Spark by TrendAI

The clearest difference is update cadence: Spark by TrendAI at every 4 days against GreenTech Network's every 5 weeks. Spark by TrendAI also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.4). On price, 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.

GreenTech Network ships an update every 5 weeks, Spark by TrendAI every 4 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | GreenTech Network | Spark by TrendAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 4 days** |
| Size | 146 MB | 7 MB |
| Requires iOS | 17.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [SWAPCARD CORPORATION](https://appshunter.io/developer/879488722) | [Casey Mondoux](https://appshunter.io/developer/6778819347) |

## What reviewers say

### GreenTech Network

[App page](https://appshunter.io/ios/app/greentech-network/id6677014186)

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

**In-app purchases:** none


### Spark by TrendAI

[App page](https://appshunter.io/ios/app/spark-by-trendai/id6811292747)

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

**In-app purchases:** none


## Frequently asked questions

### Is GreenTech Network free?

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

### Is Spark by TrendAI free?

Spark by TrendAI is free to download, with no in-app purchases.

### Do GreenTech Network or Spark by TrendAI have ads?

Neither GreenTech Network nor Spark by TrendAI shows ads.

### Which is updated more often, GreenTech Network or Spark by TrendAI?

GreenTech Network ships an update every 5 weeks, and Spark by TrendAI every 4 days. Most recently, GreenTech Network was updated on October 24, 2026 and Spark by TrendAI on October 16, 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.*