SeamShift: Pattern Alterations

Jasko Hodzic · Lifestyle

Free

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In-app purchases · US

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Subscriptions
SeamShift Pro Monthly $3.99/ month
SeamShift Pro Yearly $17.99/ year · 7-day free trial
One-time purchases
SeamShift Pro Lifetime $29.99

About

SeamShift turns body measurements and finished-garment measurements into clear, repeatable pattern-alteration worksheets. Choose an alteration, see the exact formula and assumptions, follow a vector diagram, and keep the result with your sewing project. Includes full- and small-bust worksheets, waist-to-hip blending, length changes, shoulder width and a user-entered sway-back worksheet. Export PDF worksheets and CSV calculations, or create a validated JSON backup. SeamShift does not create copyrighted patterns and does not promise a perfect fit: always follow the pattern instructions and sew a test garment before cutting final fabric. No account, ads, tracking or developer server. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://viralcrew.de/apps/seamshift/privacy

Details

DeveloperJasko Hodzic
ReleasedJul 2026
UpdatedJul 2026
Version1.0
Size1.9 MB
RequiresiOS 17.0 or later
Age rating4+
LanguagesEnglish, French, German, Italian, Portuguese, Spanish
PriceFree
Categories LifestyleUtilities
Bundle IDde.viralcrew.seamshift