Precise tools for engineers and makers.

Colabox is an independent studio making Android apps for technical drawing, field surveys, cross-stitch and quilt piecing. More than a million people have installed them.

Sketch Box

Paper and pencil for engineers, always in your pocket.

Free-hand sketching with the precision of a CAD tool: grids, dimensions, scale and layers, with Google Maps as a canvas when the job is out in the field.

  • Dimension, scale and grid tools
  • Draw over Google Maps, measure distances and areas
  • Compass and azimuth tied to true north
  • Trace any photo on its own layer
installs
1M+
layers in Pro
6
Get Sketch BoxSketch Box ProUser manual (PDF)
Sketch Box screenshot 1 of 5
  • “I'm an architecture student and found this tool incredibly useful. I particularly liked the Google Maps integration and quick dimensions. It's my new default.”

    Android user

  • “Surprisingly easy to use compared to others. Simply a great app for drawing or design.”

    Joseph De Morgan

  • “The perfect tool for engineering hand sketches.”

    ORYX ENGG CO

CompoCam

Every photo shows where you stood and which way you looked.

A camera with a live compass on top. Bearing, tilt and GPS are saved into each photo, so a picture of a site, a view or an antenna explains itself later.

  • Live bearing, pitch and roll saved into the photo
  • Antenna mode for telecom work
  • Photo log export to CSV, KML and GPX
  • Night mode with a dimmed red screen
installs
100K+
languages
8
Get CompoCam
CompoCam screenshot 1 of 8

Cross-Stitch Studio

Turn any photo into a pattern you can stitch.

Make patterns from photos or draw your own folk motifs, match colours to 450+ DMC threads, and mark stitches off as you go.

  • Photo to pattern in a few taps
  • Mirror drawing for symmetric motifs
  • Progress tracking for every colour
  • One-page printable PDF with thread key
Get Cross-Stitch Studio
Cross-Stitch Studio screenshot 1 of 5
Coming soon

FPP Studio

Design foundation paper piecing blocks, then print them to sew.

Draw a block, split it into sections, and FPP Studio works out the sewing order. Follow it step by step, then print full-size templates.

  • Draw blocks over a reference photo
  • Sections and piece numbers worked out for you
  • Sew-along mode for the join order
  • Print-ready PDF with cover, colour map and templates
Tell me when it's out
FPP Studio screenshot 1 of 4

Get in touch

Questions about an app, a feature you'd like to see, news about FPP Studio, or a project to build together.

Prefer email? Write to prime@colabox.net.