There is an optional premium subscription to budget across multiple devices and receive real-time budget updates and notifications. Features include: - Different budget formats (monthly, weekly, bi-weekly, semi-monthly, 3-month, 6-month, yearly) - Notes for transaction entries - Persistent savings envelope to allow for savings tracking - Envelope rollover options at the end of each budget period - Real-time budget sharing and push notification updates - Export budget data to csv - Community section to budget alongside friends and family - Overview of budget transaction history Purchase information: - Free for single device budgets - Subscription of $3/month (USD) to invite other users to join your budget and access your budget across multiple devices See the following link for the end user license agreement (EULA) https://www.apple.com/legal/internet-services/itunes/dev/stdeula/.