RAS Mobile I vs DS cam
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RAS Mobile I
Access and monitor remote sites with live video feeds through a network connection. View multiple cameras simultaneously, check connection status, and control PTZ cameras. Features include playback, two-way audio, and alarm output control.
- Live video monitoring
- Multi-camera GridView
- PTZ camera control
- Video playback
- Two-way audio
- Alarm Out Control
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RAS Mobile I allows you to access remote sites and monitor live video via network connection anytime, anywhere. - GridView for multiple cameras - DashBoard for connection status - Touch to Scroll for selecting cameras - PTZ control - Playback. - 2-way Audio. - Alarm Out Control - Password Lock
DS cam
Monitor and receive alerts from your Synology surveillance cameras. Control PTZ, patrols, and lens functions in real-time. Easily filter recordings and manage essential tasks like disabling cameras or deleting snapshots.
- Real-time camera monitoring
- Alert notifications
- PTZ, patrol, and lens control
- Advanced recording filters
- Essential management tasks
- Snapshot management
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You must own a Synology NAS or NVR to run this app, and be running the latest Surveillance Station to get the complete set of features. DS cam makes it possible to monitor and receive alert notifications from all your surveillance cameras set up on a Synology DiskStation. Smart features such as PTZ, patrols or lens control allow for perfect control of your cameras in real-time, while advanced filters make it easy to pinpoint any specific event from large lists of recordings. You can even perform all essential management tasks, from disabling a camera to unlocking and deleting a snapshot. Find all detailed features about the app on our website: www.synology.com > Solutions > Surveillance > Surveillance Mobile > Specifications https://www.synology.com/dsm/7.2/software_spec/surveillance_station
Screenshots
Verdict
The clearest difference is rating: DS cam at 3.0 against RAS Mobile I's 1.0. DS cam also leads on ratings volume (177 vs 4). RAS Mobile I's advantage is review sentiment (53% vs 32%) and iOS requirement (9.0 vs 15.0). On price, update cadence, ads and in-app purchases 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.
DS cam holds the better App Store score, 3.0 against 1.0. That said, the two scores are not equally well evidenced: DS cam has 177 ratings behind it against 4, so its average is the more settled of the two. Written reviews complicate that: 53% of RAS Mobile I's written reviews are positive against 32% of DS cam's, so the app with the better star average is not the one people write more warmly about.
Both ship on a similar rhythm, roughly every 4 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.
| Parameter | RAS Mobile I | DS cam |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (4 ratings) | 3.0 (177 ratings) — better |
| Positive reviews | 53.1% of reviews — better | 32.2% of reviews |
| Number of ratings | 4 | 177 — better |
| Update frequency | Every 4 months | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 83 MB | 85 MB |
| Age rating | 4+ | 4+ |
| Developer | IDIS Co., Ltd. | Synology Inc. |
Customer experience
RAS Mobile I
DS cam
User reviews
RAS Mobile I
From 4 App Store ratingsWhat we love
- 👍 Easy setup and user-friendly interface
- 🚀 Fast and smooth streaming performance
- 📱 Works well on both iPhone and iPad
- 🎥 Good remote camera viewing capability
- 💰 Free or affordable pricing
Room to improve
- 🐛 Frequent crashes and stability issues
- 🔌 Requires strong WiFi connection to function
- ⚠️ Poor compatibility with iOS updates
- 🌐 Offline search functionality broken
- 🔐 Authentication and login problems
DS cam
From 177 App Store ratingsWhat we love
- 🚀 Works great
- 👍 Good and useful app
- 🚀 Fast and stable
- 👍 Completely control camera recordings
- 👍 Toggle through events easily
Room to improve
- 🐛 Regular app crashing
- 🐛 Crashes frequently
- 🐛 Cannot scroll back in timeline without issues
- 🐛 Event viewer rarely works
- 🐛 Slow and clunky
Bugs and requests
RAS Mobile I
Reported bugs
9 issues- App crashes when accessing search function
- iOS 8 compatibility issues causing crashes
- Disconnected/Invalid DVR error messages
- App crashes on iOS 5 and iOS 7.1 updates
- Camera frame display issues when swiping between cameras
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- Connection timeout and 'Connection Lost' errors
- Invalid username/password errors despite correct credentials
- App closes immediately upon connection attempt
- Performance degradation after iOS updates
Requested features
9 requests- PTZ (Pan-Tilt-Zoom) camera control
- Search and playback of recorded videos
- Multi-camera simultaneous viewing on single screen
- External alarm activation capability
- Mac and desktop application versions
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- Push notifications for motion detection
- Improved language localization options
- Advanced search features for recorded footage
- Sound/audio port support
DS cam
Reported bugs
16 issues- Regular app crashing
- Cannot scroll back in timeline without issues
- Event viewer rarely works
- Keeps buffering
- Crashes constantly
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- Battery drain
- Push notifications not reliable
- Cannot click on push notifications
- Cannot download h265 videos
- Notifications missing thumbnails
- Slow login process
- Loses remembered connections
- Slow to connect
- Notifications stopped working
- Crashes iPhone 14 Pro
- Incompatible with older Surveillance Station versions
Requested features
11 requests- Selective motion notifications
- Custom notification sounds
- Ability to categorize alerts
- Live scrubbing on timeline
- Bookmarks and advanced filtering
Show 6 moreShow fewer
- Ability to download h265 videos
- Faster login process
- Ability to retain remembered connections
- Apple TV app
- Dark mode for all screens
- Ability to quickly switch between cameras
In-app purchases
RAS Mobile I
No in-app purchases
DS cam
No in-app purchases
