A small tool.
A simple start.
Try the app, keep the files and make it your own.
Try the working preview.
Explore the actual app with fictional examples. Choose desktop or phone view. Changes stay in the preview and are cleared when you reload it.
Sign in and buy.
Create your own Neptox.app purchase account with an email link. Pay securely through the existing Neptox Stripe account.
Download the app.
After payment is verified, your private download appears in your account. The ZIP contains the app, editable source and a guide.
Run it your way.
Use a local static HTTP server, or put the files on your own HTTPS host. The guide includes a simple command to start. Records are saved only in each browser, so export a backup regularly.