PC stats over Wi-Fi
Local
- Works from
- The same Wi-Fi
- Set up
- Nothing
- Speed
- Instant, straight from the PC
- Where the readings go
- They never leave your network
Not encrypted on the local network, so use it on a network you trust.
PC hardware monitor for Android
Monitor your PC from your phone.
SysWatch is a PC monitor for your phone. A small Windows app reads your CPU and GPU load and temperature, memory, network, storage and battery. Your Android phone shows them live, like a system monitor you can carry around, and tells you when one crosses a limit you set.
Free. No ads. No account.
- 24standby faces
- 5Overview layouts
- 3ways to connect
- 0ads or accounts
What you see
Your PC stats on your phone, as they move
Cards for CPU, GPU, memory, network, storage, battery and uptime, each with its own history graph. SysWatch only shows real readings: if your PC does not report something, it is left out.
Alerts
Know when your PC runs hot
Set a limit on any gauge. Your phone tells you when it is crossed, so you can watch CPU and GPU temperature on your phone without staring at it.
- Rules read as sentences, such as “CPU load above 90%” or “Battery level below 20%”.
- Each limit is drawn as a red line on its gauge, bar and graph.
- Limits on load, memory, battery, network speed, storage and temperatures.
- A quiet period per alert, from 1 minute to 1 hour, so one spike is one notification.
- One-tap starter alerts, and export and import as a file.
Look and layout
Make it yours
Pick an accent and a theme, then put the cards in your order. It stays one calm panel either way.
- Your accent colour
- Amber, cyan, green, violet, rose or mono, or matched to your wallpaper on Android 12 and newer.
- Three themes
- Light, dark or true black.
- Five Overview layouts
- Bridge, Gauges, Strip charts, Ledger and Focus.
- Your cards, your order
- Choose which cards show and in what order, roomy or compact.
Standby
A second screen for your desk
Stand the phone next to your keyboard and it becomes a second screen for your PC stats: 24 always-on standby faces, 16 instruments and 8 art faces, in portrait and landscape.
- 8 art faces: Horizon, Blocks, Bauhaus, Ink, Weave, Bloom, Type and Pixel. Ink sets your readings like a printed page; Bauhaus turns CPU, GPU and memory into shapes.
- 16 instrument faces, picked from a gallery that previews each one with your own readings.
- Burn-in protection, and an optional dim after 30 seconds.
- A home screen widget in four looks: rings, bars, numerals, trace.
Connection
Three ways to connect
Both apps ask the same question the first time they open. Pick the same answer on each. You can change it later in Settings.
From anywhere
Cloud by DevLune
- Works from
- Anywhere with internet
- Set up
- Nothing
- Speed
- About 2 seconds per update
- Where the readings go
- Through DevLune’s relay
Readings and your phone’s name pass through the relay. You never enter any server details.
Private, from anywhere
Tailscale
- Works from
- Anywhere
- Set up
- About five minutes, once
- Speed
- Instant, straight from the PC
- Where the readings go
- Through your own private Tailscale link
Tailscale encrypts the link. It is a separate app with a free personal plan. Tailscale setup guide
Not sure? Pick Local if the phone usually sits near the PC. Local and Tailscale need the latest version of both apps.
Set up
Set up in three steps
No account and nothing to type: the QR code carries everything the phone needs.
Install on your PC
Download the Windows installer and run it. The installer is not code signed yet, so Windows SmartScreen shows a warning: choose More info, then Run anyway. SysWatch then sits in the system tray.
Install on your phone
Get SysWatch on Google Play and open it.
Scan the code
Open Pairing on the PC and scan the QR code with the phone.
Privacy
Privacy, plainly
- No account
- A 6-character pairing code is the only thing linking phone and PC.
- Read only
- The phone can see readings. It cannot control, change or run anything on your PC.
- Local stays local
- Local mode keeps readings on your own network. It is not encrypted there, so use a network you trust, or Tailscale, which encrypts the link.
- Cloud, said straight
- Cloud by DevLune passes readings, and your phone’s name, through DevLune’s relay so the phone can reach the PC from anywhere.
- Nothing extra
- Running program names are not sent unless you switch that on. The camera is used only to scan the pairing QR code.
- This website
- No cookies, no trackers, and nothing loaded from other sites.
Questions
Questions people ask
Is SysWatch free?
Yes. SysWatch is free on the phone and on the PC, with no ads and no account. If it earns a place on your desk, you can sponsor SysWatch on GitHub.
Does it work away from home?
Yes, in two of the three connection modes. Cloud by DevLune works from anywhere with internet and needs no setup. Tailscale is instant and private from anywhere, after about five minutes of setup with the Tailscale guide. Local works on the same Wi-Fi.
Does it need an account?
No. A 6-character pairing code is the only thing linking phone and PC. You scan one QR code and there is nothing to type.
What can the phone do to my PC?
Nothing. SysWatch is read only: the phone can see readings, and it cannot control, change or run anything on your PC.
Which PCs are supported?
SysWatch runs on Windows today: Windows 10 and Windows 11, 64-bit. The phone app needs Android 7.0 or newer.
Why does Windows warn about the installer?
The installer is not code signed yet, so Windows SmartScreen shows “Windows protected your PC”. Choose More info, then Run anyway. The SysWatch install guide walks through every step.
Does it show CPU temperature?
Yes, when your PC reports it. SysWatch shows CPU and GPU temperature next to load, and NVIDIA graphics cards are read directly. CPU temperature depends on what your PC reports, and SysWatch never shows a reading your PC does not send.
Which languages is it in?
The Android app is in English, German, French, Spanish and Russian.
How do I add my language?
Community translations are welcome, and no programming is needed: it is one text file per language. In the translations folder of the SysWatch repository on GitHub, copy en.xml, translate it and open a pull request. A merged translation reaches the app by itself, with no app update. The translation guide walks through each step and the five rules.
Is my data sent anywhere?
That depends on the connection you pick. In Local mode readings never leave your network. Over Tailscale they travel through your own private, encrypted link. With Cloud by DevLune, readings and your phone’s name pass through DevLune’s relay. Running program names are not sent unless you switch that on.
Translations
Help translate SysWatch
The Android app ships in English, German, French, Spanish and Russian. Community translations are welcome: add your language, or fix a line that reads wrong in yours. A merged translation reaches the app by itself, with no app update.
Read the translation guideOpen the translations folder on GitHub