ScopeTup

JWW / JW_CAD viewer for iPhone & iPad (.jww supported). View drawings, measure distance/area, use layers, annotations, snap, compass, Apple Watch, and 8-language support.

JWW / JW_CAD Drawings — Always at Your Fingertips on Site

No more printing, carrying, or losing paper drawings. With iPhone or iPad and a JWW file, view, measure, and annotate drawings anywhere — boosting on-site productivity.

Dedicated app for JW_CAD (.jww) files on iPhone and iPad. Built for site supervisors, architects, contractors, and surveyors who work with drawings every day.

High-Precision JWW Viewer Open .jww files directly on iPhone or iPad. Pinch to zoom, pan to scroll.

Toggle layer visibility to show only what you need — structural, mechanical, floor plan, or rebar drawings.

[Display Modes] · Color: original drawing colors · Black on white: print-preview style · White on black: high contrast for night work or bright sunlight

[Themes] · System: iOS Liquid Glass design · JW_CAD-like: familiar CAD color scheme

Measurement Mode (Pro plan+) Check dimensions without a tape measure. Wall spacing, opening widths, corridor widths, column spans — all with a tap.

[Measurement Types] · Distance · Angle · Area · Circumference

[Units] Distance: mm, cm, m + sun, shaku, ken (traditional Japanese) Area: m², cm² + tsubo, jo | Angle: degrees / radians / gradians

[Object Snap — 11 Types] Endpoint / Intersection / Midpoint / Center / Perpendicular / Extension / Tangent / On-Line / Quadrant / Tracking and more. Each snap toggles individually.

[Tap Feedback] · iPhone: vibration · iPad: confirmation sound · Progress ring, adjustable text size, customizable timing

Coordinate Mode (Max plan) Set base point (BP) and backsight (BS) to read drawing coordinates in real time — ideal for surveying, layout, and boundary checks. Compass integration and direct coordinate keypad input supported.

Paint Mode (Max plan) Write revision notes, inspection records, and memos directly on drawings. Share screenshots via email or chat instantly.

[Tools] · Pen · Marker · Eraser · Revision cloud · Rectangle · Select/Move Adjustable line width, opacity, and custom colors.

Built-in Calculator Standard calculator + coordinate calculator built in. No need to leave the app mid-check.

Apple Watch Integration View measurement results on your wrist. When both hands are occupied on site, just glance at your watch to confirm dimensions instantly.

8 Languages Supported Japanese / English / Simplified Chinese / Vietnamese / Bahasa Indonesia / Thai / Khmer / Nepali One app for multilingual job sites.

Display Customization [Liquid Glass] Panel transparency: clear / translucent / matte. [Performance Monitor] Real-time rendering for large, complex drawings.

Subscription Plans [Free] JWW viewing and layer toggle — free. · Apple Watch · Ad-supported · Usage limits apply

[Standard — ¥980/mo · ¥9,800/yr (approx. $6.13/mo · $61.25/yr) · 7-day free trial] · No ads, no limits · Apple Watch

[Pro — ¥1,980/mo · ¥19,800/yr (approx. $12.38/mo · $123.75/yr) · 7-day free trial] · All Standard features · Measurement mode (distance, angle, area, circumference) · Traditional Japanese units · Object snap (11 types) · Apple Watch

[Max — ¥3,980/mo · ¥39,800/yr (approx. $24.88/mo · $248.75/yr) · 7-day free trial] · All Pro features · Coordinate mode (BP/BS, compass, keypad) · Paint mode (pen, marker, revision cloud, rectangle, export) · Built-in coordinate calculator · Apple Watch

USD figures are approximate conversions at ¥160 = $1.00 (Apr 2026) and may change with exchange rates. Billed in JPY. Subscriptions auto-renew unless cancelled at least 24 hours before the renewal date. Cancel: Settings → Apple ID → Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Who Is This App For? · Architects and designers using JW_CAD daily · Site supervisors and managers in construction, civil, and infrastructure · Surveyors needing on-site coordinate readings · Teams annotating drawings with revision notes or inspection records · Professionals switching from paper to digital drawings

All paid plans include a 7-day free trial.