Your spare Android phone, now the camera in your grow tent.
GrowScope Station is a small Android app that turns an old phone into a fixed box camera. It takes photos on a schedule, encrypts them on the phone, streams live video when you open it, and keeps track of which plant is where in the frame — viewed from GrowScope in any browser, at home or away. The same phone can also log when the lights go on and off.
The problem
Growth you look at every day is growth you can't see. You notice stretch, drooping or a change in colour only once it is obvious, and you can't check the tent at all when you're not home. Most grow cameras are separate cloud gadgets with their own app, their own account and photos sitting readable on someone else's server.
Why it's hard to solve alone
A photo every few minutes from the same spot is the only honest way to see slow change: the stretch after the flip, leaves praying in the morning and drooping by evening, a plant that stopped growing three days ago. It only works if the camera stays put, keeps shooting when you forget about it, and the pictures of your grow stay private.
How GrowScope helps
Pair a spare Android phone with your box by scanning a QR code from GrowScope. The phone shoots 4:3 photos on a schedule you set (every 15 minutes by default, 5 to 120 minutes), strips EXIF and encrypts every frame on the phone with a key derived from your account key — the server never gets that key. Small thumbnails go to the server for 48 hours so the gallery opens fast; full frames stay on the phone and are fetched on demand through an encrypted relay. Mark each plant once on a frame, and GrowScope re-finds the plants in later frames — even after you move the camera or the plants.
How it works
- Download the GrowScope Station APK from Settings → Box camera (Android) and install it on a phone with Android 8 or newer. It is not in Google Play, and an iPhone can't be used as the camera.
- Open the box's Box cameras panel in GrowScope and scan the pairing QR with the phone, or type the pairing code. The code works once.
- Frame the shot with the live preview: rule-of-thirds grid and a level. Leave the phone on a charger and on Wi-Fi.
- Open the gallery from any browser: thumbnails load at once; tap for the full frame or the original, decrypted in your browser.
- Draw a box around each plant once. GrowScope compares new captures with that markup in your browser and moves the boxes when the camera or a plant shifts; boxes it isn't sure about are dashed with a question mark.
- Tap Live for real-time video (WebRTC, video only); the plant labels follow the plants on the live picture, and scheduled shots keep running.
What you get
A steady, private photo record of every plant in the box from the same angle, a live look whenever you want one, and each plant's crop ready in the frame viewer — without buying a camera or handing your photos to a cloud service.
Frequently asked questions
What phone do I need?
Any Android phone with Android 8 or newer and a working rear camera. It should stay plugged in and on Wi-Fi. The Station app is installed from an APK downloaded inside GrowScope, not from Google Play. iPhones can view the gallery and live video in the browser but can't be used as the camera.
Can I watch my grow tent when I'm not at home?
Yes. The gallery and live video open in GrowScope from any browser with internet, on a phone or a computer. The camera phone only needs to stay on your home Wi-Fi; there are no ports to open and no VPN to set up. The phone holds the full frames and answers when you open them, so it has to stay powered and online.
Can GrowScope see my photos?
No. Frames are encrypted on the phone with a key derived from your account key, which never leaves your devices in readable form. The server stores only encrypted thumbnails for 48 hours and relays encrypted full frames when you open them; it can't decrypt either. EXIF metadata is stripped on the phone.
How many cameras can I connect?
One camera on the Free plan and up to five on Pro.
Can it measure light or climate too?
Light, roughly. Cover the phone's front camera with a tissue or a sheet of white paper and it measures relative brightness every 2 minutes. GrowScope turns that into lights-on and lights-off times, photoperiod, light leaks in the dark period, stability and lamp decline. It is not a PPFD meter; PPFD and DLI appear only after you calibrate it once against a real meter. For temperature and humidity, turn on Bluetooth sensors in the Station app and the phone passes on readings from nearby Bluetooth thermo-hygrometers (Govee, Inkbird, SwitchBot, Qingping and others). Station does not switch any equipment.
Does it keep shooting with the screen off?
Yes. The Station app holds the phone awake between shots, restarts itself after a reboot or an app update, and a watchdog checks it every 15 minutes. If Android stops the camera in the background, GrowScope shows the camera as blocked and one tap on the phone resumes it.
What happens if the phone gets hot or the battery is low?
The app pauses shooting when the phone reports a severe thermal state and shows its battery, charging and storage status in GrowScope, so you notice a problem before the archive stops growing. Live video stops on overheating or low battery.
Does it use AI credits?
No. Capturing, the gallery, live video and plant tracking run without AI. Plant tracking is image matching done in your browser.