TeardownTwin€34.99

For anyone with a screwdriver

Take it apart.
Get it back together.

TeardownTwin turns your camera into a disassembly log: photograph each step, pin every screw right on the photo — and reassemble with the same photos as a checklist, in reverse.

Coming soon toApp StoreComing soon toGoogle Play

Works fully offline · iOS 17.0 or later · any iPhone

Teardown screen: photo with pinned fastener groups

How it works

No 3D scans, no accounts, no learning curve. Just photos and taps.

  1. 01

    Shoot before you unscrew

    Photograph the assembly while everything is still in place. That photo is your map back.

  2. 02

    Pin every screw on the photo

    Tap the exact spot where each screw or part sat. Six screws are six taps.

  3. 03

    Same screws get one letter

    Describe a pile of identical screws once — it gets a letter: A, B, C… The letter is never reused in the project, so cup B always means the same screws.

  4. 04

    Reassemble in reverse

    The same photos become a checklist, played backwards. The PDF report reads in reverse too — its first step is what you removed last.

The screens

Real screenshots from the manual — this is exactly what you get.

Projects — every teardown in one list
Projects — every teardown in one list
Project hub — photos, steps, export
Project hub — photos, steps, export
Teardown — pin screws right on the photo
Teardown — pin screws right on the photo
Steps — assembly runs this list backwards
Steps — assembly runs this list backwards
Viewer — full-screen photo, precise pins
Viewer — full-screen photo, precise pins
Fastener group — letter, count, length
Fastener group — letter, count, length
Removed part — what, where, which way
Removed part — what, where, which way
Assembly — same photos, reverse order
Assembly — same photos, reverse order
Export — PDF report and ZIP archive
Export — PDF report and ZIP archive

The paper twin

Every project exports an A4 report that reads in reverse: its first step is what you took off last. These pages are a real export, untouched.

Report cover: How to put it back together — DIP-500 lathe, steps, parts, fasteners, photos
The cover reads “How to put it back together” — because that's when you open it
Report page: Remove the belt guard — hazard warnings and a photo with lettered fastener marks
An assembly step: hazards first, then the photo with its marks burned in
Report page: fastener table with letters, sizes and reusability, photo of tray B
Fastener groups to fit — sizes, counts, and which screws must never go back in

Why it's different

Fully offline

No network, ever. No accounts, no cloud, nothing leaves your phone.

Any iPhone

No 3D, no ARKit, no LiDAR. If it runs iOS 17, it works.

Built for the garage

Dark theme only, big controls that respect work gloves.

Letters that never lie

A fastener letter is never reused in a project — cup B is always cup B.

A recovery path

Export a ZIP archive; import it back on any iPhone. A teardown you can't reshoot deserves a backup.

A paper twin

The PDF report reads in reverse — open it when the thing is already in pieces.

Pricing

Fixing one thing or fixing everything — pick the price that fits.

Monthly

€4.99

per month

  • Good for a single repair.
  • Cancel anytime — your projects stay on your phone.

Buy once

€34.99

one payment — yours forever

  • Every future update included.
  • No account. No ads. Nothing recurring.
Coming soon toApp StoreComing soon toGoogle Play

Android — planned

Suggest a feature

Missing something? Tell me — real requests decide what gets built next.

Questions