Support
How can we help?
Answers to the common questions, and how to reach a person when they don’t cover it.
Email us
A person reads every message.
From the app
Go to You › Settings › Help & feedback. It sends your app version too, which helps us fix things faster.
Billing
Payments go through Apple. Manage or cancel in iPhone Settings › your name › Subscriptions.
Common questions
For deposits, withdrawals or a trade you placed, contact Polymarket. Nostra can’t see or change anything in your Polymarket account.
How do I cancel my subscription?
On your iPhone, open Settings, tap your name, then Subscriptions, then Nostra, then Cancel Subscription. Cancel at least 24 hours before your renewal or trial ends. You keep Pro until the end of the period you’ve paid for.
How do I restore my purchase on a new phone?
Sign in with the same Nostra account, then tap Restore purchases on the subscription screen. Make sure your iPhone uses the same Apple ID you subscribed with.
Can I switch between monthly and yearly?
Yes. In iPhone Settings › your name › Subscriptions › Nostra, pick the other plan. The change starts at your next renewal.
How do I get a refund?
Apple handles all refunds. You can ask for one at reportaproblem.apple.com.
I’m not getting alerts
Check that notifications are on for Nostra in iPhone Settings › Notifications, that alerts are on for the trader or group, and that you’re outside your quiet hours. Nostra checks for new trades every few minutes, so an alert can arrive a little after the trade.
How do I delete my account?
In the app, go to You › Settings › Account › Delete account. This deletes your account data. It doesn’t cancel an Apple subscription, so cancel that in iPhone Settings first.
A trader’s numbers look wrong
Scores use public Polymarket data and refresh weekly, so they can lag behind. If something looks off, tell us the trader’s name from Help & feedback.
Can I hide my wallet from Nostra?
Trader pages only show public Polymarket activity. If you’d like your wallet hidden, email us from the address on your account with the wallet address.