DS cam vs 飞牛
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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
飞牛
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飞牛(fnOS)是一款免费、高效又安全的NAS系统，兼容x86硬件，智能影视刮削，相册支持实况，由NAS骨灰级玩家团队倾心打造，稳定迭代，无损更新。 飞牛App可以轻松访问、管理和使用fnOS私有存储的数据和应用，专注为您提供交互友好、存储高效又安全的NAS系统移动端体验。 【硬件兼容】基于新版 Linux 深度开发，兼容主流x86硬件，闲置旧机可装 【用户友好】只需一个飞牛App即可高效安全访问NAS，简单好上手 【性能超群】内核级高性能文件聚合方案，极高优化性能 【飞牛影视】自动匹配海报和字幕，电影匹配率99%，超级播放器，蓝光杜比，实时转码 【文件管理】支持多用户、权限管理、资源分配；多种文件网络传输协议 【相册】随时备份，释放空间；支持原图、RAW、实况预览；与家人朋友共享美好时光 【备份】支持百度云盘、阿里云盘、飞牛NAS或外部设备的多地备份 【全面掌控】资源监控、系统通知、Docker、系统设置、硬盘管理，全面掌控你的NAS健康运行 --- 关注公众号：飞牛fnOS，了解更多最新消息 商务合作，添加微信号：fn_business 官网：www.fnnas.com，更全面了解飞牛私有云
Screenshots
Verdict
The clearest difference is review sentiment: 飞牛 at 76% against DS cam's 32%. 飞牛 also leads on rating (4.8 vs 3.0) and update cadence (every 2 weeks vs every 4 months). On price, ratings volume, 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.
飞牛 holds the better App Store score, 4.8 against 3.0. Both are backed by a comparable volume of ratings — 176 and 115 respectively. Written reviews point the same way: 32% of DS cam's written reviews are positive against 76% of 飞牛's.
DS cam ships an update every 4 months, 飞牛 every 2 weeks. The most recent releases landed on October 25, 2026 and October 27, 2026 respectively.
| Parameter | DS cam | 飞牛 |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (176 ratings) | 4.8 (115 ratings) — better |
| Positive reviews | 32.2% of reviews | 76.1% of reviews — better |
| Number of ratings | 176 — better | 115 |
| Update frequency | Every 4 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 85 MB | 171 MB |
| Age rating | 4+ | 4+ |
| Developer | Synology Inc. | 广州铁刃智造技术有限公司 |
Customer experience
DS cam
飞牛
Bugs and requests
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
飞牛
Not enough reviews yet to summarise bugs or requests.
In-app purchases
DS cam
No in-app purchases
飞牛
No in-app purchases
