Waridashi: Knitting Calc
Gauge & shaping math, solved.
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Turns the fussy arithmetic before you cast on into wording you can knit straight from. Every calculation is free; saving past two is one-time. Nothing leaves the phone.
The trickiest math in knitting — working out your shaping — done in a moment.
Enter your gauge and finished measurements and Waridashi gives you the stitch and row counts. "Increase evenly from 60 to 72 stitches." "Decrease Y times across X rows at the sleeve." It works out the distribution and hands it back as a ready-to-knit instruction.
THREE CALCULATORS
• Gauge converter: swatch gauge + finished size → stitch & row counts
• Increase/decrease evenly: from N to M stitches in one row, e.g. "1 inc every 5 sts, 12 times"
• Sleeve / slope shaping: spread Y shaping events over X rows — with the actual row numbers
THE INSTRUCTION IS THE PRODUCT
Instead of a bare list of numbers you get a line you can copy straight into your notebook: "1 inc every 5 sts, 12 times (60 → 72)." Copy it with one tap, and the verification detail (plain-stitch runs and the actual row numbers) is always there to check by hand.
SAVE AND ORGANIZE
Name a calculation and save it, grouped into projects like "Winter Sweater." Reopen and re-edit anytime.
FULLY OFFLINE
All math stays on your device; the app makes no network calls (except Apple's StoreKit for purchases). No ads, no tracking, no server, no external data.
FREE
• All three calculators, unlimited — the math is never gated
• Copy any result
• Up to 2 saved calculations
ONE-TIME WARIDASHI PRO (see the App Store listing for current pricing)
• Unlimited saves
• Organize and re-edit by project
• Share instructions as text
It is not a subscription — pay once, yours forever. If Pro ever lapses, every saved calculation stays readable; only creating or editing beyond the third one pauses.
ABOUT THIS APP
Waridashi is a calculator for distributing stitches and rows. It is not a row counter — it specializes in shaping math. It does not specify increase/decrease techniques (M1L/M1R, ssk, and so on). It is designed for knitting with needles; crochet is not supported. Numbers are a guide — adjust to your fabric and taste.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Fixed a pricing display issue in the app description.
The developer, Yuya Tanaka, 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
- Seller
- Yuya Tanaka
- Size
- 3.1 MB
- Category
- Lifestyle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English and Japanese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro – Unlimited (Lifetime) $4.99
- Copyright
- © 2026 ZA-ONE
