# Portal "Marina Tower" vs e

The clearest difference is device support: Portal "Marina Tower" at 3 against e's 1. Portal "Marina Tower" also leads on iOS requirement (15.0 vs 17.0). 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.

Portal "Marina Tower" ships an update every 2 months, e every 6 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | Portal "Marina Tower" | e |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Size | 82 MB | 15 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 17+ | 4+ |
| Developer | [DotHome Solutions GmbH](https://appshunter.io/developer/1496205972) | [STEPHAN DR. GILLMEIER](https://appshunter.io/developer/1729166330) |

## What reviewers say

### Portal "Marina Tower"

[App page](https://appshunter.io/ios/app/portal-marina-tower/id1577395133)

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

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-boost/id6477388767)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Portal "Marina Tower" free?

Portal "Marina Tower" is free to download, with no in-app purchases.

### Is e free?

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

### Do Portal "Marina Tower" or e have ads?

Neither Portal "Marina Tower" nor e shows ads.

### Which is updated more often, Portal "Marina Tower" or e?

Portal "Marina Tower" ships an update every 2 months, and e every 6 weeks. Most recently, Portal "Marina Tower" was updated on October 25, 2026 and e on October 25, 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.*