# MAMP Viewer vs GATEWatch Server

The clearest difference is update cadence: GATEWatch Server at every 4 weeks against MAMP Viewer's every 9 months. GATEWatch Server also leads on device support (4 vs 2) and iOS requirement (15.6 vs 17.0). 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.

MAMP Viewer ships an update every 9 months, GATEWatch Server every 4 weeks. The most recent releases landed on October 6, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | MAMP Viewer | GATEWatch Server |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (232 ratings)](https://appshunter.io/ios/app/mamp-viewer/id1047237620/reviews)** | — |
| Number of ratings | **232** | — |
| Positive reviews | 33.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 weeks** |
| Monetization | Free | — |
| Size | 5 MB | 24 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [MAMP GmbH](https://appshunter.io/developer/1451068672) | [Volker Lehnen](https://appshunter.io/developer/1528760360) |

## What reviewers say

### MAMP Viewer

[App page](https://appshunter.io/ios/app/mamp-viewer/id1047237620)

This app allows web developers to preview and test local websites directly on their iOS devices. It offers real-time previews, easy setup, and automatic WLAN transfer for seamless development on the go.

**Highlights:** Real-time website preview, Easy setup for MAMP sites, Supports HTML, CSS, JavaScript, PHP, Automatic WLAN project transfer, Intuitive user interface

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

**In-app purchases:** none

**What reviewers like**

- 👍 Useful for remembering development addresses
- 👍 Convenient for local mobile testing
- 👍 Good for productivity
- 👍 Works well with MAMP Pro
- 👍 Handy for testing mobile versions

**What reviewers complain about**

- 🐛 Doesn't work at all
- 🐛 Fails to load hosts
- 🐛 Error loading page
- 🐛 Aggressively cached CSS
- 🐛 Not working with WordPress

**Reported bugs**

- No MAMP Pro hosts found
- Error loading page: Mamp viewer is not able to load the requested page
- CSS files aggressively cached, no way to turn off or empty
- All resolution options grayed out in MAMP Pro General tab
- App has stopped working

**Requested features**

- Update user interface
- Add URL bar for manual entry
- Improve WordPress support
- Fix SSL certificate issues
- Add tutorial video for setup


### GATEWatch Server

[App page](https://appshunter.io/ios/app/gatewatch-server/id1577530184)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is MAMP Viewer free?

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

### Is GATEWatch Server free?

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

### Do MAMP Viewer or GATEWatch Server have ads?

Neither MAMP Viewer nor GATEWatch Server shows ads.

### Which is updated more often, MAMP Viewer or GATEWatch Server?

MAMP Viewer ships an update every 9 months, and GATEWatch Server every 4 weeks. Most recently, MAMP Viewer was updated on October 6, 2026 and GATEWatch Server on October 2, 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.*