BonSplit is an AI-powered receipt scanner and expense-splitting app for households — snap any German receipt and it automatically recognizes every product, price, and category, then splits the bill fairly among housemates or family members.
What is BonSplit?
BonSplit is a receipt‑scanning and expense‑tracking app that reads individual line items from German receipts (including crooked phone shots and faded thermal paper) using Anthropic’s Claude AI. It outputs categorized spending dashboards, per‑person settlements, and a searchable digital receipt archive with CSV/PDF export. The app is built by Martin Prell and runs as a web app on any smartphone, desktop, or tablet — no installation required. It works with major German retailers such as REWE, EDEKA, Aldi, Lidl, dm, Rossmann, Müller, Amazon, Aral, Hagebaumarkt, Dehner, and Penny.
Key Features
- AI receipt capture — Recognizes merchant, date, every product name, price, and category from photos, PDFs, or screenshots with ~98% accuracy on German receipts.
- Smart categories — Over 28 categories (e.g., bakery, dairy, sweets) assigned automatically instead of generic “groceries”; each line item gets a specific label.
- Fair cost splitting — Split any receipt per individual product or as a lump sum among up to 5 people per household (free tier); monthly settlement shows who pays whom.
- Dashboard & insights — Spending overview by category, merchant, and time period with no manual filtering; recurring expense templates for rent, electricity, subscriptions.
- Receipt organizer — Permanent digital archive with full‑text search; export as CSV for spreadsheets or as a single PDF with receipt images (for tax, insurance, expense claims).
- Shopping list app — Synced shopping list accessible on every device; can be combined with receipt scanning to avoid duplicate purchases.
- No bank‑account integration — Works offline by scanning receipts; no need to link bank accounts.
- Privacy‑first design — Household members use nicknames; data stored on German servers (Strato), GDPR‑compliant; receipts sent to Anthropic for recognition but not used for training.
Who is it for?
- Couples managing a joint household — Scan shared grocery receipts, split costs per item, and see who spent what on the shared account each month.
- Flatshares — Capture receipts for shared purchases (toilet paper, cleaning supplies, internet bills) and settle without WhatsApp arguments or spreadsheets.
- Families — Coordinate weekly shopping with a synced list, track spending on kids’ favourite brands, and avoid buying duplicates.
- Group travellers — Split restaurant bills, accommodation, and activity costs fairly during trips without manual calculations.
What can you do with BonSplit?
- Scanner on the go: Photograph a receipt as you leave the store (5–10 seconds per receipt); the app auto‑reads every product and assigns a category.
- Recurring expense templates: Set up rent, electricity, Spotify, or insurance as templates — BonSplit suggests them monthly; one click logs them.
- Full‑text receipt search: Find a specific receipt by product name, date, or store; export all data for tax filing or expense reports.
How does it work?
- Capture — Take a photo of a German receipt (or import PDF/clipboard image). The AI reads every product, price, and category.
- Categorize & assign — Receipts are automatically grouped under one of 28+ spending categories. You can assign each purchase to a household member.
- Settle — At the end of the month, BonSplit calculates who owes whom. It detects which card was used (e.g., Visa ending 1234) and links payments automatically.
