Nexus Scanner app on a phone, scanning a document
NEXUS/SCANNER← Johnny Haynes’s Dev Portal
Android · Private · Offline

NEXUS
SCANNER

A document scanner that stays on your phone. Scan, crop, sign and save PDFs with no account, no ads and no internet permission.

Buy Now $16.99
Coming soonto Google Play

One-time purchase. No subscription. · Privacy policy

0accounts needed
0ads
0internet permission
1permission: camera

Point. Scan. Done.

Tap through the four steps to see how a page goes from camera to PDF.

Live edge detection

  • Outlines the page on the camera preview as you move.
  • Optional auto-capture fires once the page is held steady, and you can switch it off.
  • Drag the four corner handles to fine-tune the crop, with a magnifier for precision.
  • Perspective correction flattens pages shot at an angle.
  • Flashlight toggle for dim rooms, or import photos with the Android photo picker.

Filters and batch mode

  • Six filters: Magic Color, Original, Enhanced, Grayscale, B&W and Enhanced B&W (the default).
  • Capture many pages in a row, then review them all at once.
  • Reorder, delete, retake, rotate, adjust corners or change the filter on any page.
  • An unfinished batch can be resumed if the app closes.
Try the filters on this sample page

Signature

  • Draw your signature once and reuse it.
  • Place it on any page: drag to move, pinch to resize.
  • Scan a contract, sign it and send it without printing anything.
Your signature, drawn once

PDF, text and backup

  • A4 PDF export with an optional diagonal watermark that you type yourself.
  • Built-in PDF viewer: open with another app or share it.
  • Export several documents as one combined PDF.
  • Back up everything to a .zip you save wherever you like, and restore it later.
Lease_signed.pdfReceipts_Oct.pdfInvoice_0412.pdfnexus-backup.zip

Built to stay private

Everything happens on your device. Your documents never leave your phone.

01

Auto-crop

Point at a page and Nexus Scanner finds the edges and cleans up the scan for you.

02

Text recognition

Turn scans into searchable, copyable text with built-in OCR.

03

Signatures

Sign documents right on your phone and save them as PDFs.

04

Offline backup

Back up and restore your files without any cloud account.

05

No ads, no account

Nothing to sign up for and nothing interrupting your work.

06

Dark mode

A dark design with neon green accents that is easy on the eyes.

Everything inside

The full toolkit, all working without a connection.

ID CARD MODE

Both sides, one page

Scan the front and back of an ID card and place both on a single A4 page.

ORGANIZE

Folders and multi-select

Create, rename and delete folders, sort by date or name, move documents, or select several to merge into one PDF.

SEARCH

Find text inside scans

Search your library by document name and by the words found inside the pages.

OCR

Offline text recognition

Copy, share or save a page as .txt. Works for Latin-script languages.

QR + BARCODE

Built-in code reader

Read QR codes and barcodes, then copy, share or open a link in your own browser.

PAGES

Edit after you scan

Drag pages to reorder, rotate or delete single pages, and add more pages to an existing document.

Why it's different

Many popular free scanners ask for an account, show ads or sell a subscription. Nexus Scanner does none of that.

Nexus ScannerTypical free scanner
Account requiredNoOften
AdsNoneOften
Pricing$16.99 onceSubscription or in-app upsell
Internet permissionNot requestedUsually requested
Where scans liveOnly on your phoneOften synced to a cloud

Questions, answered

Straight answers, including the limits.

Does it need an internet connection?

No. The app does not request internet permission, so it cannot upload your scans. Scanning, text recognition, folders and PDF export all work offline.

Which permissions does it ask for?

Only the camera. Importing photos uses the Android photo picker, so no storage permission is needed.

Is it a subscription?

No. It is a single $16.99 purchase with no subscription and no ads.

How do I back up my documents?

Create a backup .zip and save it wherever you choose, such as local storage or Google Drive through the Android file picker. Restoring merges it with what is already on the device.

Are my scans encrypted?

Scans sit in the app's private storage and are not encrypted by the app itself. Backup files are ordinary .zip files, so keep them somewhere safe. Android's own device backup, if you have it on, may also include your scans.

Which languages does text recognition support?

Latin-script languages only.

Which phones does it run on?

Android phones. Edge detection works best when the page contrasts with its background, and you can always adjust the corners by hand.

Who do I contact for help?

Email [email protected].

Own it once.

Pay $16.99 one time. No subscription, no ads, no account.

Buy Now $16.99

Privacy policy · Terms of service · Merchant policy · Install guide (PDF)