Add Lifetime Premium

Bug fixes

Pinned default split members per group: tap the star next to a member in group detail, or save the current selection from inside the split options, to pre-select those people for every new expense and recurring expense in that group. Empty pin list still defaults to everyone, and pinning all members auto-clears the list so future joiners keep being included

Bug fixes

Bug fixes

Added 3 new language locales: French, Polish, Dutch

Added 4 new language locales: Spanish, Italian, German, Portuguese

- Added group budget limits with progress tracking on GroupDetail, GroupsScreen, and HomeScreen carousel
- Added threshold-based in-app toast alerts when spending crosses budget limit
- Added auto-open calculator on new expense with focus flow to description field

- ShareCost Web App — manage expenses from any browser at sharecost.app
- Better offline mode — app stays usable when server is unreachable
- Seamless subscription upgrades and downgrades
- Consistent group ordering across all screens
- Fixed infinite spinner during subscription purchases
- Fixed purchase timeout requiring manual restore
- Security and stability improvements