ShopTools v8.00

Stores — loyalty cards and opening hours in one place. A store doesn't need a card to get an entry — save just its hours if that's all you want.
Inventory — Groceries (always here, pinned — can be renamed but not deleted) plus any other named lists you add (e.g. "Clothes", "Tools"), each tracked by category: current/recommended levels, low-stock coloring, tap a category's ⠿ to reorder whole sections, an item's ⠿ to reorder within its section. Tap + New inventory to add one, ✎ to rename, × to delete (Groceries excepted). Reopens wherever you last left it.
Links — URLs you come back to, grouped into categories the same way Inventory is, with the same collapse and reorder.
Budget — keep as many budgets as you like (e.g. "Food", "Pocket money"), tap + New budget to add one. Inside a budget, set recurring income and expenses (pick a frequency, it converts to a monthly figure) to see what's left over each month, then log spending as it happens to watch that "extra" count down in real time. Resets fresh on the 1st. Currency is shared across every budget. Tap ✎/× on the budgets list to rename/delete. Reopens wherever you last left it.
Quick List — a flat list for occasional buys: DIY tools, electronics, gadgets. Just a name and a number, no categories or stock tracking. Tap + to add one and start typing right away; double-tap a name to rename it, − / + for quantity, × to delete.