The tape measure that snaps to the line.
PlanTape opens any blueprint PDF and measures it faster and more accurately than anything else on a phone — because it snaps to the centerline of every wall, corner and edge.
No account · No cloud · Works offline

A plain phone ruler measures wherever your finger lands. PlanTape finds the middle of the line for you — the same point a pro would measure from, every time.
Built for one-handed work on site.
Snaps to the centerline
A magnetic cursor locks to wall midlines, endpoints, corners and edge-intersections — with a haptic tick on lock and a sub-pixel readout. Measure the wall, not your aim.
Calibrate by pointing
Drag along any printed dimension line and type its real value. PlanTape auto-suggests the scale from the PDF and sanity-checks it against a second dimension.
Tape, area & polygon
Lengths, areas and multi-point polygons — many at once on the same plan, each with per-segment and total labels. Export a clean takeoff when you're done.
Local-first, works offline
Your plans and markups live on your device. No account, no cloud, no sign-in — measure in a basement with no signal. Share a flattened PDF or image only when you choose.
From PDF to takeoff in three taps.
Open a plan
Open any blueprint PDF straight from Files, Mail or another app. Vector plans unlock full snapping; scanned plans fall back to free measurement.
Set the scale
Point at a known dimension once. PlanTape locks the scale to the drawing — accurate everywhere on the page.
Measure & share
Tape, area and polygon with magnetic snapping, then share a marked-up PDF or image through the standard share sheet.
See the snap.



Coming soon to the App Store.
PlanTape is in beta now. Want in? Drop us a line and we'll send a TestFlight invite.
Request a beta invite