SewGrader: Pattern Drafting
Sewing patterns, graded to fit
Free · In-App Purchases
Draft a t-shirt, shirt, skirt or dress from your measurements, try it on in 3D and grade the whole size run — now on iPhone as well as iPad.
Draft a sewing pattern to your own measurements, grade it to every size you need, try it on in 3D, and print, plot or project it — on iPad and iPhone.
START FROM A GARMENT
A new project asks what you are making, not how big the paper should be. Pick a t-shirt, a shirt, a skirt or a dress — a sweatshirt and pants are on the way — and draft it to your own measurements or to a standard size from a chart. Every piece comes labeled with what to cut, laid out on a drawn length of the fabric you actually have, so you can see whether it fits the bolt before you buy it.
Before it draws anything, it tells you what it will make — the finished chest circumference, the sleeve length, how much fabric it needs. Or start on an empty canvas and draft it yourself.
TRY IT ON IN 3D (BETA)
See a garment the app drafted hang on a form made to your measurements, with the ease shown zone by zone — even in your own fabric, from a photo. On an iPhone or iPad with LiDAR, scan the person and try it on a form shaped from the scan. The 3D fitting is a beta: it shows how a garment hangs, and does not replace a fitting sample.
DRAFTING
Freehand drawing with hold-to-perfect shape recognition. Precise CAD-style coordinate entry. Bézier edges, boolean merge, offset, and slash-and-spread. Import a photographed or scanned pattern and calibrate it to real-world scale. The working surface sizes itself to the document — there is no canvas dimension to set.
GRADING
Per-node grade rules, measurement profiles and edge constraints. Built-in size charts for US, UK, EU, Japanese and children's sizing — add a whole size run in one tap, and sizes you have already adjusted by hand are left exactly as they are. Change a measurement and the graded nest updates. Show one size, or all of them nested on the canvas.
SEWING DETAIL
Seam allowances with per-edge overrides and corner treatments. Slit, V and T notches, darts, grainlines, drill holes, fold lines, internal construction lines, buttons, match points and dimension annotations. Link edges that must stay the same length, so a sleeve cap keeps matching its armhole.
OUTPUT
Tiled PDF for home printing, with corner registration marks, page numbers, and a first page mapping the whole pattern onto the sheet grid. SVG and DXF for plotters and digital cutters. A projector mode that calibrates the pattern to real size on a floor or table and then locks, so it cannot drift while you cut. When a piece is larger than the projection, one tap moves on by most of a screen and marks where the last screen ended.
And where paper is the wrong medium, it says so: for garments the app drafted itself, a cutting guide hands you the numbers to mark straight onto folded cloth.
WORKING COMFORTABLY
Magnetic snapping that stays constant as you zoom. Layers, each with its own visibility and locking. A reusable piece library. A gesture ladder — two fingers undo, three redo, four hide the interface. The tool panel mirrors for left-handers.
WHAT IT DELIBERATELY DOESN'T DO
No subscription. Keep up to five patterns and print tiled PDFs for free. One purchase lifts the limit and opens SVG, DXF and project files, for good. No ads and no upsells.
Work offline with patterns stored on your device. Optional iCloud Drive sync keeps a copy available on your other devices.
No generative AI patterns. A pattern is geometry, not a guess. A draft that looks plausible and doesn't fit costs you meters of fabric and a weekend. Every line comes from a rule you can inspect and change.
No silent loss. Work saves continuously, and rotating backups are kept for every project — behind a visible button, because the moment you need them is the moment you should not have to guess.
LANGUAGES
Fully localized into 18 languages — including the printed pattern and the CAD command bar.
Something not right? Send feedback from inside the app, with the pattern attached. Every message is read.
Designed for iPad and iPhone. An Apple Pencil is supported but not required.
Ratings & Reviews
- This app has not received enough ratings or reviews to display an overview.
Version 1.4
• Now on iPhone, upright or sideways — and on iPad in any orientation.
• Try on in 3D (beta): a garment drafted in the app hangs on a form at your measurements, with the ease zone by zone, even in your own fabric. With LiDAR, scan a person for a form shaped like them.
• Draft for a standard size from a size chart, not only from measurements.
• Gallery: search, folders and duplicating patterns. A rounded in-seam pocket for skirts and the dress.
• Projector: moving is now an on/off switch; arrows move by most of a screen and mark where the last screen ended. Page step is gone.
• The print grid on the canvas shows only the sheets that will print.
• Settings: choose how long to hold for a menu, and the time for a double tap.
• The sweatshirt and the pants are still being tuned and marked "Coming soon".
The developer, Sew Grader by Virtalia, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Provider
- Virtalia s.r.o.
- Size
- 37.3 MB
- Category
- Graphics & Design
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPad
Requires iPadOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later. - Mac
Requires macOS 12.0 or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Lifetime Unlock $24.99
- Copyright
- © Virtalia s.r.o.
