Point and scan: edges are detected automatically, pages are straightened and shadows removed, and you get a clean PDF in one tap. Redact ID and phone numbers, make ID card copies, sign contracts and extract text — all on your device. Nothing is uploaded.
Left: a photo taken straight from the phone. Drag the slider to compare the straightened original with the HD filter — shadows and yellow paper tint are removed while text stays sharp.
Phone photo
OriginalHD filter
One app for all your paperwork
Smart scanning
Detects document edges, captures automatically and corrects perspective. Import from Photos too.
7 filters
Original, Bright, HD, Print, Color Print, Grayscale and B&W — remove shadows and whiten paper.
Redaction
Automatically covers ID numbers, phone numbers, bank cards, emails, QR codes and faces.
ID card copies
Both sides of an ID card on one A4 page. Export as PDF, Word or images.
Sign & stamp
Draw a signature, or extract signatures and stamps from paper into your library.
Watermarks
Custom watermark text, size, density and opacity to mark the intended use.
Text recognition
Extract text in Chinese, English, Japanese and more, then copy or share.
PDF tools
Edit a copy of any PDF: insert or delete pages, sign, watermark and redact.
Export & print
Export PDF, images or ZIP, print directly, or share to any app.
Smart scanning
Point, scan, straightened
Hold your iPhone over a document and FlashScan finds the edges in real time — the frame turns green and the page is captured automatically. Keep going for multi-page documents.
Automatic edge detection and capture, or use the shutter
Perspective correction for pages shot at an angle
Torch, flash and auto-crop for imported photos
Fine-tune the four corners any time
Redaction
Cover private details before you share
Open Redact and FlashScan scans the page on your device. ID numbers, phone numbers and similar data are covered right away; names, addresses and company names are suggested — tap to confirm. Long-press words or draw a box to cover anything else.
ID numbers, phone numbers, bank cards, emails and @handles (detection is tuned for Chinese formats)
QR codes, barcodes and faces
6 colors, preview before saving
Works in the PDF tool too
Before: sensitive info detectedAfter: everything covered
ID cards
ID card copies on one page
Switch to ID card mode, capture the front and the back, and FlashScan lays both sides out at real size on one A4 page. Add a watermark that states what the copy is for.
Automatic cropping and layout
Export as PDF, Word or images, or print
Adjustable watermark text, size, density and opacity
Sign & stamp
Sign contracts on your phone
Draw your signature on screen, or photograph a signature or stamp on paper — FlashScan removes the background and saves it to your signature library. Place it on any page, then move, resize and rotate.
Draw, import from Photos, or pick from your library
Background removal for signatures and stamps
Your library stays on your device
Text recognition
Copy text instead of retyping it
Tap Extract Text to recognize the current page or the whole document. Select just the part you need, or share everything.
Chinese, English, Japanese and more
Keeps reading order; long-press to select
Extract all pages at once
Your documents stay on your iPhone
Scans often contain ID numbers, amounts and signatures. FlashScan does its scanning, filtering, text recognition and redaction on your iPhone — never on a server.
On-device
Scanning, filters, OCR and redaction all run locally, even offline.
Never uploaded
Documents, signatures and stamps are stored only on your device. We cannot access them.
No account
Open it and start scanning. No sign-up, no phone number.
To improve the app we use Umeng analytics for anonymized device and usage statistics. It never includes document content. Read the privacy policy (Chinese)
Tip: documents live only on your device and are removed if you delete the app. Export important files as PDF before switching phones.
Made for everyday paperwork
Onboarding
ID copies, diplomas and certificates as one PDF for HR.
Renting
Sign the lease, then redact ID and phone numbers before sending.
Expenses
Receipts and invoices scanned into a single PDF.
Studying
Homework, exams and notes archived; text extracted from books.
Paperwork
Watermark copies with their intended use.
FAQ
Is FlashScan free?
Yes. FlashScan is free on the App Store, with no account and no ads.
Are my documents uploaded?
No. Scanning, filters, text recognition and redaction run on your iPhone. Documents, signatures and stamps are stored only on your device. The app uses Umeng analytics for anonymized device and usage statistics, which never include document content.
Is there an Android version?
Not at the moment. FlashScan requires an iPhone running iOS 16 or later.
What does redaction detect?
ID numbers (with checksum validation), phone numbers, bank card numbers, emails, @handles, QR codes, barcodes and faces are covered automatically. Names, addresses and company names are suggested for you to confirm. Detection rules are tuned for Chinese formats; you can always long-press words or draw a box to cover anything else.
Which formats can I export?
PDF and images (ZIP for multi-page documents). ID card copies can also be exported as Word. You can print directly or share to any app.
Which languages does text recognition support?
Chinese, English, Japanese and other common languages are detected automatically.
What happens when I switch phones?
Documents are stored only on the current device and are deleted with the app. Export important documents as PDF before switching phones or uninstalling.
