# GreenData vs MAESTRO.eco

The clearest difference is iOS requirement: GreenData at 14.0 against MAESTRO.eco's 17.6. On price, update cadence, 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.

GreenData ships an update every 3 weeks, MAESTRO.eco monthly. Both last shipped on September 15, 2026.

## The numbers

| Metric | GreenData | MAESTRO.eco |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 215 MB | 117 MB |
| Requires iOS | **14.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [GreenData](https://appshunter.io/developer/1047549512) | [MAESTRO OOO](https://appshunter.io/developer/1706483102) |

## What reviewers say

### GreenData

[App page](https://appshunter.io/ios/app/greendata/id1467346474)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


### MAESTRO.eco

[App page](https://appshunter.io/ios/app/maestroeco/id6465206635)

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

**In-app purchases:** none


## Frequently asked questions

### Is GreenData free?

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

### Is MAESTRO.eco free?

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

### Do GreenData or MAESTRO.eco have ads?

Neither GreenData nor MAESTRO.eco shows ads.

### Which is updated more often, GreenData or MAESTRO.eco?

GreenData ships an update every 3 weeks, and MAESTRO.eco monthly. Most recently, GreenData was updated on September 15, 2026 and MAESTRO.eco on September 15, 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.*