Open this link on your iPhone — StockChat is an iOS app.
This invite link is incomplete — it may have been cut off when it was sent. Ask your friend to send it again.
1
Install TestFlight
Apple's app for testing apps before release. StockChat is delivered through it.
Install TestFlight before tapping the link in step 2 — otherwise step 2 won't stick and you'll have to tap it twice.
2
Install StockChat
Opens in TestFlight. Tap Accept, then Install.
3
Join the group
Open StockChat once and set your name, then tap below.
Open the group
In StockChat, tap Create a new group, give it a name, and you'll get a link to invite your friends.