Clean Local Document Scanner

Watermark-free, ad-free, on-device document scanning

Problem

Users just want to scan a document, but almost every scanner app is stuffed with ads and stamps a watermark on the output, making documents look unprofessional — removing it requires paying. This high-frequency utility has been ruined by ad models; users openly say they'd rather build their own, showing willingness to pay for a clean experience.

Solution

A purely on-device scanner: automatic edge detection, high-resolution export, zero watermarks and zero pop-up ads, multi-page PDF assembly, simple enhancement and renaming, with data never leaving the phone. Replaces the ad model with a low one-time price or cheap subscription.

Users

Office workers, freelancers and students who occasionally scan contracts, receipts and IDs

MVP

Auto-crop and enhance from camera; multi-page PDF export; no watermarks or ads at all; local storage and share sheet; simple folder organization

Revenue

Low one-time purchase (e.g. $4.99) or annual ad-free subscription; optional paid cloud backup

Why now

Ad-driven scanner UX keeps getting worse and complaints are concrete and concentrated; on-device image processing is mature enough for a solo dev to ship in weeks