Lock Lock it. It won’t slip.
Your hand moves across the page the whole time you draw. Once locked, the picture stays on the paper, hand in view or not.
For iPhone · iOS 17 or later
Trace any photo
onto paper
Rest your phone on a cup, about 25 cm above the paper. Look at the screen and your picture sits on the sheet, faint enough to trace with a real pencil.
Coming soon to the App Store
No subscription. Tracing your own photos is free, forever.
How it works
A cup, a pencil, and your phone
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Put the phone on a cup
About 25 cm above the paper, camera facing down. It does not need to be level: the tilt is corrected for you.
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Pick a picture
One of your own photos, or a drawing from the library. Drag to move, pinch to resize, twist to turn.
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Lock it and draw
Tap Lock and it stays put, even with your hand in view. Hold the lock button to unlock.
Made for real desks
The picture stays where you put it
Lock 
Tilt A tilted phone is corrected for you
No need to get the phone perfectly flat. BooTrace straightens the picture automatically, so a cat’s face doesn’t come out stretched.
Re-align Bumped? One tap lines it up again
If the phone or the paper moves, take your hand away and tap Re-align. BooTrace finds your pencil lines and puts the picture back on them.
Corners Uneven table or an easel
Tap Corners and drag the four dots onto the corners of your paper. The picture fits the sheet wherever it sits.
Your own photos
Your photo, turned into clean lines
Turn any photo into an outline you can trace. Basic outlines are always free. Clean outline lifts your pet or friend out of the background and keeps only their lines: 3 free tries, unlimited with Pro.
It all happens on your iPhone. Your photos are never uploaded.
And the rest
Little things that keep you drawing
A library to start from
Animals, food, plants, Christmas. When you don’t know what to draw, pick one here.
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Cat -
Fox -
Ramen -
Sunflower -
Whale -
Teacup -
Kitten in a cup -
Mushrooms
A time lapse of every drawing
When you finish, your drawing becomes a short time lapse to save or share. Free with a small Boo mark in the corner; Pro removes it.
Watch your practice add up
Minutes traced, drawings finished, and a heat map of the last 12 weeks.
Pick up where you left off
Unfinished drawings wait on your shelf. Tap Continue and the picture goes back exactly where it was.
Pricing
Free to trace. Pro if you want more.
Free
US$0
- Tracing your own photos, with no limit
- Basic outlines of your photos
- The starter drawings
- Lock, flip, grid and flashlight
- Time lapse with a small Boo mark
- Clean outline: 3 free tries
BooTrace Pro
US$6.99 once
- Every drawing in the library
- Every new drawing we add, at no extra charge
- Unlimited clean outlines of your own photos
- Time lapse videos without the watermark
Pay once, keep it forever. No weekly subscription, no trial that turns into a charge. US price shown; the App Store shows the price for your country.
Questions
Before you grab a pencil
Does BooTrace shine the picture onto the paper?
No. You look at the paper through your phone’s camera, and the picture shows up over it on the screen. You draw on the real paper while you watch the screen.
What do I rest the phone on?
A cup, a mug or a stack of books, so the phone sits about 25 cm above the paper with the camera facing down. It doesn’t have to be level.
Is there a subscription?
No. BooTrace Pro is a single purchase. There is no weekly plan and no free trial that turns into a charge.
What can I do for free?
Trace your own photos as much as you like, turn them into basic outlines, use the starter drawings, lock, flip, grid and flashlight, and save time lapses with a small Boo mark. Clean outline has 3 free tries.
Are my photos uploaded anywhere?
No. The photos you pick, the outlines and your drawings stay on your iPhone. There is no account, no ads and no analytics.
The phone or the paper got bumped. Do I start over?
No. Move your hand out of the way and tap Re-align. BooTrace finds the lines you already drew and lines the picture up with them again.
Can I use it on an easel or an uneven table?
Yes. Unlock, tap Corners and drag the four dots onto the corners of your paper.
Which iPhones does it run on?
Any iPhone with iOS 17 or later. If Clean outline can’t run on your iPhone, Photo and Outline still work.
Grab a pencil and a cup
Tracing your own photos is free, forever.
Coming soon to the App Store