# Dynamics Lucy vs Erth Dubai

Dynamics Lucy and Erth Dubai are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Dynamics Lucy ships an update every 2 weeks, Erth Dubai fortnightly. Both last shipped on October 20, 2026.

## The numbers

| Metric | Dynamics Lucy | Erth Dubai |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Fortnightly** |
| Size | 66 MB | 67 MB |
| Requires iOS | 16.6 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Dynamics Plus Max](https://appshunter.io/developer/1789526223) | [Dubai eGovernment Department](https://appshunter.io/developer/567993892) |

## What reviewers say

### Dynamics Lucy

[App page](https://appshunter.io/ios/app/dynamics-lucy/id6740326610)

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

**In-app purchases:** none


### Erth Dubai

[App page](https://appshunter.io/ios/app/erth-dubai/id6740855670)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dynamics Lucy free?

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

### Is Erth Dubai free?

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

### Do Dynamics Lucy or Erth Dubai have ads?

Neither Dynamics Lucy nor Erth Dubai shows ads.

### Which is updated more often, Dynamics Lucy or Erth Dubai?

Dynamics Lucy ships an update every 2 weeks, and Erth Dubai fortnightly. Most recently, Dynamics Lucy was updated on October 20, 2026 and Erth Dubai on October 20, 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.*