Support
Help with your account, subscription, data or the CosmoSync application.
contact@cosmo-sync.comLast updated: 9 August 2026
Contact support
Email contact@cosmo-sync.com and include your account email, device model and a short description. Never send a password, payment-card number or Apple verification code.
Subscriptions
Web subscriptions are managed from the Plans page through Stripe. Apple subscriptions are managed in Settings > Apple Account > Subscriptions. Restore Purchases is available from the Plans page in the iPhone and iPad app.
Delete your account
Open MyCosmo, then Account & Settings, and choose Erase my data & account. This starts deletion without requiring an email to support.