PatternPlot: Trace & Grade
iOS app by Andrey Tyurin. Graphics & Design · Andrey Tyurin
- Store rating
- 0 / 5
- Store rating count
- 0
- Download price
- Free to download
- In-app purchases
- Unknown
- Version
- 1.0.1
- Listing last refreshed
- 2026-09-12
View the original store listing
Store description excerpt
PatternPlot turns a paper sewing pattern into an editable, true-scale vector on your iPad — then grades it into a full size run you define, deterministically. Tracing a pattern got easy years ago. Grading — turning one size into a trustworthy run of sizes — is still the hard, trust-sensitive job. PatternPlot is built around that job, on device, with geometry you can audit. FREE — real work, no subscription • Photograph or import a paper pattern and trace it with Apple Pencil (or finger + numeric entry). • Import your own vector artwork (SVG) at true scale — free, because it is how you get your work in. • Edit true-scale vector pieces: add seam allowance per edge, notches, and grainlines. • Export true-scale tiled PDFs and A0 — with a 50 mm calibration square and registration marks so your print is exactly to scale. • Grade YOUR piece: mark a reference point and an axis, type how much each size grows, and see the whole run nested on screen. • A quality report on every graded size: drift beyond the safe grade range, collapsed edges, and self-intersections. • Export the base size — the size you drafted — at any time. No purchase is required to do any of this. Basic export is never locked behind a paywall. PRO GRADING — the paid tier • A tiled PDF for every size in your run. • A vector outline of every piece at every size. • A nest of the whole run on one sheet. • Every piece of the garment in each file, not just one. • A spreadsheet of what every declared seam measured, size by size. • Your grade corrections saved to a file, so another garment can use them. The vector files carry the stitching outline only — no seam allowance, notches or grainline. Reading a saved corrections file back into a pattern is free; only writing one is Pro. HONEST BY DESIGN The grade is deterministic geometry computed on your device. AI never touches your measurements: no coordinate, seam allowance, notch position, or graded measurement is ever produced by a model. PatternPlot also tells you when a size drifts beyond a safe grade range, so you can re-check proportions before cutting fabric. We describe this as garment-aware grading — not a fit guarantee. REQUIRES: iPad on iPadOS 17 or later. Apple Pencil recommended but not required. — Pro Grading subscription: $79.99/year after a 7-day free trial. Payment is charged to your Apple ID at confirmation of purchase. It renews automatically unless turned off at least 24 hours before the end of the period; manage or cancel anytime in your Apple ID Account Settings. Trace, vector edit, seam allowance, notches, grainline, and tiled/A0 PDF export are free and do not require a subscription. Privacy Policy: https://amtyurin.github.io/patternplot/privacy-policy.html Terms of Use: https://amtyurin.github.io/patternplot/terms-of-use.html
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