Proofreading tools that stay out of your way.
A PDF annotation app for iPad built around one idea: stamps are faster than typing. Mark up documents the way you think — tap, place, move on.
Native iPad app · One-time purchase · No subscription
A proofreading app that respects your workflow.
Stampede puts a customisable stamp sidebar alongside your PDF. Each stamp is an annotation — stet, transpose, close up, delete, insert — ready to drag onto the page. No fiddling with text boxes. No hunting through menus. See the error, place the stamp, keep reading.
The stamp sidebar
The sidebar that changes how you mark up PDFs.
Your stamps are pre-made and waiting. Tap a stamp, tap the page, it’s placed. Drag it if you need to adjust. Move on to the next error.
Create stamps for anything — standard correction marks, custom codes, editorial shorthand, client-specific symbols. Persistent across documents, searchable, always one tap away.
Stamp sidebar screenshot
Everything you need. Nothing you don’t.
Stamp Sidebar
Your stamps, always visible. Drag onto the page. Custom fonts, colours, wording. The core of everything Stampede does.
AI Proofreading
On-device AI catches what your eyes miss. Spelling, grammar, inconsistencies. You review. You decide.
Documents Stay Private
On-device processing. Your PDFs never touch a server. NDAs, manuscripts, legal docs — all safe.
Reading Modes
Sepia, green, and dark overlays for long sessions. Comfortable reading for the hours it actually takes.
iPad screenshot
Native iPad app
Native. Not ported. Not adapted. Built.
A native Swift app built with Apple’s own frameworks. Apple Pencil works beautifully for precise stamp placement and freehand markup. Gestures feel right. Performance is smooth on documents that make other apps stutter.
The text selection is custom-built — a light green overlay that’s smoother and less jittery than what most PDF apps offer. A small detail you’ll notice immediately.
Full annotation toolkit
Stamps are the headline. Here’s the rest.
Screenshot coming
Highlights & text markup
Highlights, underlines, and strikethroughs with customisable colours.
Screenshot coming
Free text annotations
For when you need to write a note, not place a mark.
Screenshot coming
Freehand drawing
Pen, marker, eraser. Apple Pencil pressure. Line straightening.
Screenshot coming
Research panel
Look up any selected text in Google, Wikipedia, Merriam-Webster, or custom references.
Screenshot coming
Multi-tab documents
Several PDFs open simultaneously, each with its own undo history.
Screenshot coming
Export modes
Editable annotations or flattened into the PDF. Share however you need.
One price. Your app. Forever.
A one-time purchase. Not a subscription. Not a yearly fee. Not a “free tier” that nags you into upgrading.
Pay once. Get the full app. Get every update.
In a world where PDF Expert charges $80 a year and Adobe wants $24 a month, we think there’s something to be said for just… selling you the app.
It don’t require bells and whistles.
A proofreading tool made by people who think the best software is the kind you barely notice. It works. It’s fast. It stays out of your way.
Made by Krte-ch. An independent app studio.