Privacy policy
Last updated 9 November 2026
What we store
- Account: your name, email address and a scrambled (hashed) form of your password. We cannot see your password.
- Image counter: for each image you analyse, a SHA-256 fingerprint of the file, its file name, its pixel size and the date. This is how the 10 free images are counted.
- My library (optional): when “Save my images and results to my account” is ticked, the original image file, a small preview, and your settings and results (scale, orientation, measurements, detected features) are stored privately in your account so you can reopen them later. Only you can see them. Untick the option to keep images on your device only, and delete saved images from My library at any time.
- Billing: the name, postal address and country you enter for invoices, your plan, its dates and your invoices.
- Payments: handled by Razorpay (India) or PayPal. We receive the payment reference, amount and method (for example "UPI" or "card"), never your card number, UPI PIN or bank login.
How we use it
To run your account, count free images, provide your subscription, send invoices, confirmation codes and reminders about your subscription, and answer your questions. We do not sell or share your data for marketing. We tell the site owner when an account is created or a payment is made.
Where it is kept
Account data is stored with our hosting provider, Netlify, and emails are sent through Google. Payment data is kept by Razorpay and PayPal under their own policies.
Cookies and storage
We use one sign-in cookie. If you tick "Remember me" it lasts 30 days, otherwise 12 hours. Your browser may also remember your chosen currency. There are no advertising cookies.
Your choices
You can ask us to correct or delete your account. Invoices are kept for our accounting records. After deletion, the free allowance for that email address is not restored.
Contact
Stardust Astronomy (Vishal Sharma), Greater Noida West, Uttar Pradesh, India. Reply to any Solar Lab email, call +91 99996 92985 or message on WhatsApp.