# GreenTech App vs Source.ag

The clearest difference is update cadence: Source.ag at every 5 days against GreenTech App'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.

GreenTech App ships an update monthly, Source.ag every 5 days. The most recent releases landed on September 27, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | GreenTech App | Source.ag |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Size | 58 MB | 71 MB |
| Requires iOS | 17.0 | **16.4** |
| Devices | iPhone | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [RAI Amsterdam B.V.](https://appshunter.io/developer/1444409331) | [Source.ag B.V.](https://appshunter.io/developer/1616140864) |

## What reviewers say

### GreenTech App

[App page](https://appshunter.io/ios/app/greentech-app/id1586113128)

**Features:** macOS Compatibility

**In-app purchases:** none


### Source.ag

[App page](https://appshunter.io/ios/app/sourceag/id6775826276)

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

**In-app purchases:** none


## Frequently asked questions

### Is GreenTech App free?

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

### Is Source.ag free?

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

### Do GreenTech App or Source.ag have ads?

Neither GreenTech App nor Source.ag shows ads.

### Which is updated more often, GreenTech App or Source.ag?

GreenTech App ships an update monthly, and Source.ag every 5 days. Most recently, GreenTech App was updated on September 27, 2026 and Source.ag 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.*