IsoTool vs Sheet Metal Layout

IsoTool includes a 7-day free trial for first-time users. Continued use requires a paid subscription. IsoTool is a tool for precise calculation of pipe and sheet-metal flat patterns for technical insulation, ventilation, and metal fabrication. Calculate flat patterns for pipes, bends, T-pieces, and transition pieces in seconds. The calculator generates an accurate pattern with all dimensions, ready to be transferred directly onto sheet metal or used as a digital reference. IsoTool is developed for professionals in technical insulation, ventilation, and sheet-metal work who need fast and accurate calculations without using complex CAD software. Features: • Calculates flat patterns for pipes, such as: bends, T-pieces, and transitions • Displays dimensions and angles in a clear, easy-to-read layout • Ideal for workshop, job site, or educational use With IsoTool, you get a practical and reliable tool that saves time, reduces errors, and ensures accurate results—every time. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Mark out the flat pattern, cut once. Sheet Metal Layout develops the patterns fabricators lay out every day — cones, miter elbows, tees, reducers and square-to-round transitions — right on your phone, fully offline. PATTERNS THAT MATTER • Miter elbow — two-piece, any angle • Cone and frustum — full radial-line development with sector angle • Concentric and eccentric reducers — triangulated true lengths • Round offsets and lobster-back (segmented) elbows • Equal and unequal tees — branch saddle cut depths • Square to round — corner true lengths, laid out LAID OUT RIGHT • Every pattern gives you key dimensions, a schematic and a numbered ordinate / true-length table • A step-by-step "How to lay out" list walks the parallel-line, radial-line or triangulation construction • Copy any ordinate table as text to keep with your job notes ACCURATE TO THE METAL • Layout follows the neutral fibre — set the K-factor (mid-wall by default) so bend allowance is built in, not guessed • Pipe mode auto-fills outside diameter and wall from a built-in nominal pipe-size table (½"–12", schedule 40/80) • Sheet mode takes diameter and thickness directly BUILT FOR THE SHOP AND THE FIELD • Inch (fractions to 1/16") or millimetre — one tap to switch • 100% offline — works anywhere, no signal needed • Big controls, screen stays awake, no account • Your inputs never leave your phone ONE-TIME PURCHASE The free version includes the miter elbow, cone / frustum and reducer patterns — full functionality, never crippled. Sheet Metal Layout Pro is a single one-time purchase that unlocks the remaining five patterns. No subscription. No ads. No feature removals. Ever. Reference layout only. Add your own seams, laps and material allowance, and always verify before cutting.