MAMP Viewer vs Astro PM
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MAMP Viewer
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.
- Real-time website preview
- Easy setup for MAMP sites
- Supports HTML, CSS, JavaScript, PHP
- Automatic WLAN project transfer
- Intuitive user interface
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MAMP Viewer – Your Mobile Companion for Web Development With MAMP Viewer, you can view and test your local websites directly on your iPhone or iPad. Connect the app to MAMP PRO and review your projects on a real iOS device without having to publish them online first. Key Features Preview on Real Devices View your local websites directly on your iPhone or iPad and check how they look and work on iOS. Easy Setup Connect to your MAMP PRO websites in just a few steps. Broad Compatibility Test websites built with HTML, CSS, JavaScript, PHP, WordPress, and other common web technologies. Local Network Access Access your MAMP PRO websites over Wi-Fi, with no cables or uploads required. Easy to Use Switch between your projects using a clean and intuitive interface. MAMP Viewer is the ideal companion for web developers, designers, and users of MAMP PRO 6 or later.
Astro PM
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Astro PM is the companion app to the Astro PM desktop software — the astrophotography project manager that plans, schedules, and automates your imaging through NINA. Pair the app with your Astro PM account and your observatory follows you everywhere. PAIR IN SECONDS Scan the QR code shown in the desktop app (Settings → Pair Phone), or enter your sync token manually. Your connection is stored securely on the device. YOUR IMAGING SYSTEMS AT A GLANCE See every enabled rig — site, telescope, and camera — with live target counts. Multi-observatory setups show each dome or pier as its own system, exactly as configured on the desktop. TARGETS AND PROGRESS Browse the cloud targets for each imaging system with their images, coordinates, mosaic layout, and status. Tap a target for its full exposure plan: per-filter progress bars, exposure length, gain, offset, binning, and accepted counts — plus total integration time captured versus planned. Priorities and progress stay in sync with the desktop app and the NINA plugin. ASTRONOMICAL WEATHER A 16-day astronomical forecast for each observing site: cloud cover by layer, computed seeing and transparency, wind, temperature and dew point, and sun/moon altitude bands with your imaging windows marked. Nights are centered so you can judge tonight at a glance. NINA REMOTE PAUSE/PLAY Running the Astro PM NINA plugin? Pause and resume your automated nightly imaging loop right from your phone — the sequencer confirms back so you know the command landed. BUILT FOR THE FIELD Target data is cached on the device, images download once and stay cached, and nothing polls in the background — the app only fetches when you open or refresh a page. REQUIREMENTS Astro PM is a companion app. It requires the Astro PM desktop application (Windows) and an Astro PM account — visit astro-pm.com to get started. NINA remote control additionally requires the free Astro PM NINA plugin. This app is free to use and does not offer or have any in-app purchases. Weather data by Open-Meteo. Satellite and forecast sources credited in the desktop app.
Screenshots
Verdict
The clearest difference is update cadence: Astro PM at fortnightly against MAMP Viewer's every 9 months. Astro PM also leads on iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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, Astro PM fortnightly. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.
| Parameter | MAMP Viewer | Astro PM |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (232 ratings) — better | — |
| Positive reviews | 33.6% of reviews | — |
| Number of ratings | 232 — better | — |
| Update frequency | Every 9 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 49 MB |
| Age rating | 4+ | 4+ |
| Developer | MAMP GmbH | Josh Jones |
Bugs and requests
MAMP Viewer
Reported bugs
34 issues- 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
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- Won't find hosts even with viewer enabled and on same network
- iOS viewer has never worked
- Upgrade to version 6 disables localhost on mobile
- Locally hosted site fails to load, error text truncated
- Page will not reload if iPad goes to sleep, requires restart
- Not working on custom hosts running Wordpress sites on Nginx
- Cannot change address in address bar manually
- Too many redirects error with WordPress
- Stuck in a redirect loop with WP sites
- Errors trying to load anything, won't let you enter a URL
- Hardly ever works
- Doesn't list hosts
- Cannot access free MAMP site
- Input shows up but won't type or delete anything
- All hosts failed
- Cannot load pages, error message with no explanation
- Menu scrolls to tags causing crash
- Fails to load, error message with no explanation
- Picks up host but fails to load
- Works well for one host, fails for multiple instances
- Doesn't work with any site, they appear but never load
- Only allows access to root page, cannot access subpages
- Incompatible with MAMP's self-signed SSL certificates
- Won't allow viewing anything with a self-signed certificate
- Doesn't support self-signed certificates
- Dynamic PHP sites show plain, unstyled with no images
- Help icon goes to MAMP downloads page
- 'Help' section contains placeholder text
- No hosts show in the app
Requested features
12 requests- Update user interface
- Add URL bar for manual entry
- Improve WordPress support
- Fix SSL certificate issues
- Add tutorial video for setup
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- Allow access to subpages
- Improve MAMP Pro integration
- Add admin section for settings
- Provide iPhone X support
- Enable manual URL entry
- Fix caching issues
- Allow viewing of multiple instances
Astro PM
Not enough reviews yet to summarise bugs or requests.
In-app purchases
MAMP Viewer
No in-app purchases
Astro PM
No in-app purchases









