Download the JS Fashion Android app
How to install
Tap Download APK. When the download finishes, tap Open (or open JSFashion-3.4.0.apk from your downloads, or from the Telegram or WhatsApp chat).
If your phone says it is not allowed to install unknown apps, tap Settings.
Turn on Allow from this source for the app you downloaded with — your browser, Telegram or WhatsApp — then go back.
Tap Install.
If Play Protect warns about the app, tap More details, then Install anyway. If it offers to scan the app first, that is fine too.
Tap Open and sign in.
Updates
Once the app is available on Google Play, it will update from there; your account and data are kept.