All features
Leafkeep is a document toolkit for iPhone: scan documents, edit and sign, translate, turn whiteboards into meeting minutes, scan business cards, track expenses and check Taiwan receipt lotteries. Your data stays on your phone.
Document scanning
Auto edge detection and straightening, with shadows removed and paper restored to white.
- Camera auto-focus and auto-capture
- Import PDFs and photos; documents are found automatically
- One-tap Auto Enhance — the original is always kept

Sign on your phone
Sign with your finger, then drag, resize and rotate it anywhere.
- Transparent-background signature
- Fine-tune size and angle with sliders or two fingers
- Signing never uses up your free exports

Save & export
Searchable PDF, Word, JPG or email in one go.
- Text recognition makes PDFs searchable and copyable
- Library with search and rename
- Each document counts once, whatever the pages or formats

Document translation
Keeps layout, tables, stamps and backgrounds — only the text changes.
- Translated on-device; nothing leaves your phone
- Traditional/Simplified Chinese works on any supported iOS
- Other languages need iOS 18

Whiteboard minutes
Snap a whiteboard; AI turns it into a summary, decisions, action items and to-dos.
- Uses your own Claude API key
- Connects only after you consent
- No extra subscription

Business cards & contact QR
Scan a card to create a contact, save it to Contacts and share it as a QR code.
- Never reads your existing contacts
- Contact QR uses the vCard format
- Sharing a QR does not count as an export

Expenses & e-invoices
Scan receipts and Taiwan e-invoice QR/barcodes, with monthly totals and CSV export.
- Live e-invoice scanning (iOS 16, A12 or later)
- Photo receipts are recognised automatically
- Invoice features appear when the device region is Taiwan

Receipt lottery check
Download the winning numbers from Taiwan’s Ministry of Finance and compare them on your phone.
- Draw reminder at 9 pm on the 25th of odd months
- Opening the app also checks automatically
- Only numbers are downloaded; your invoices are never uploaded
