Vauban: Stop Impulse Buying

Vauban is a budgeting app that helps you stop impulse buying, without ever asking for your bank credentials. Vauban reads your bank's payment notifications on your phone, updates your budgets in real time and stops you at the right moment when a purchase goes over what you planned. Your financial data stays on your device: no account, no cloud, no bank sync. ★ Automatic expense tracking, no bank login • Vauban recognises payment notifications from your bank and digital wallet and files them into your budgets. • An uncertain detection waits for your confirmation; a merchant you correct once stays corrected. • You can still add expenses by hand at any time. ★ A wall against impulse purchases • Over budget? Vauban shows a behavioural wall: a pause, a reason, your code. Time to decide whether this purchase is really worth it. • Real-time alerts as you get close to your limit. • In store, Vauban can ask you to turn off contactless (NFC) payments to cut an impulse purchase short. ★ Budgets that fit your life • Daily, weekly or monthly budgets, each with its own alert threshold and friction level. • Category breakdown and trends, computed on your phone. • Transaction history and editing, CSV export and backups. ★ On your computer too The Vauban Guard browser extension blocks online checkout pages. To pay, you scan its QR code with the app, which gives you an unlock code after a pause. No network, no account. (Linking the extension requires Vauban Pro.) ★ Supported banks and wallets Crédit Agricole, BNP Paribas, SG, La Banque Postale, BoursoBank, LCL, Caisse d'Épargne, Banque Populaire, Crédit Mutuel, CIC, Crédit Mutuel de Bretagne, Fortuneo, Hello bank!, BforBank, Monabanq, Nickel, N26, Revolut, Wise, bunq, Swile and Edenred+. ★ Privacy first • No connection to your bank, no credentials requested. • Budgets, transactions and history never leave your phone. • No ads, no data selling. ★ Vauban Pro Category and merchant budgets, multiple profiles, advanced trends and no-spend days, password-protected backups, colour palettes, and linking with the Vauban Guard extension. Monthly subscription or one-time purchase. Vauban is built by an independent developer. A question, or a bank to add? Get in touch at https://vauban.vablab.dev/en.