Everything TB Logic does.
Built by construction workers, for construction workers. Here is what's in the app today. See pricing →
Read, measure, and mark up your plans.
Open a plan on your phone or in the browser and work right on the sheet. Included with Pro.
Scale
Set the scale once so every measurement after it is true to the drawing.
Measure & Linear
Measure a distance or follow a run, like an exterior wall, and get the length.
Area
Outline a space and get the square footage.
Count
Count outlets, windows, posts, or anything else you can see on the sheet.
Note
Drop a note exactly where the work is.
Markup
Pencil, circle, cloud, box, triangle, and text to call things out.
Calculator over the plan
Open the calculator right on top of the plan without losing your place.
Pinch to zoom, go to page
Get around a big set quickly.
Keep every job together.
Add plans, photos, and files
Bring in a plan, a photo, or a whole folder.
Job folders
Keep a job's plans, chats, and photos in one place.
Open from email or another app
Send a plan to TB Logic straight from where you got it.
Share a job folder
Share it as a PDF with a link back to the app.
The whole crew reads the same plan.
A plan is translated once into any of our 8 languages, then saved on each phone.
All 8 languages
English, Spanish, French, Portuguese, German, Polish, Chinese, and Korean. Everyone reads the plan in their own language.
Works offline
Once a translated plan is saved on your phone, you don't need a signal.
Exact trade math.
Plain mode is free to try. Pro adds exact feet-inch-fraction math and Construction mode, with a 30-day free trial.
Exact feet-inch-fractions (Pro)
Enter 7′-5 3/16″ and get 7′-5 3/16″ back. Every fraction stays a fraction.
Walls
Wall studs with kings, trimmers, cripples, and plates, plus rake walls and arch walls.
Stairs
Rise, run, and layout.
Roofing
Roofing squares, hip and valley rafters, and jack rafters.
Concrete
Slab volume and circle calculations.
Compound miter, arc, and percentage
The odd cuts and quick checks that come up all day.
Visual diagrams
See the layout, not just a number. Add notes and share it with your crew.
Running tape & history
Every calculation is saved. Scroll back, reuse a number, and share the whole tape.
Saved
Pin results you want to keep and organize them in folders.
An AI that's been on the job site.
Powered by Anthropic's Claude.
Ask in plain English
Get a step-by-step breakdown for framing, concrete, and more.
An honest answer
It looks things up first, and if it isn't sure it says so instead of guessing, and passes the question to our team.
Chats stay with the job
Save a chat inside the job folder it belongs to.
One account, every device.
iPhone, Android, and the web
Sign in on up to three devices and your work follows you.
8 app languages
Menus, buttons, and labels in the language your crew reads.
Report a problem or send an idea
A bug button right in the app.
Your data, your call
Erase your data from your account whenever you want.
Ready to work smarter on your next job?
Try the Plain mode calculator for free. Start calculating in under 30 seconds.