UTCal vs Rope Access Logbook

Your UT Bible, built for the field. Skip distance, D1.1 acceptance, beam path diagrams, encoder calibration, pipe data, and code criteria — offline, right in your pocket. Built by a working NDT tech for working NDT techs. No account. No internet. No subscription. Runs entirely on-device. CALCULATOR • Skip distance, half skip, and full skip for any angle and thickness • Beam spread — near-field distance, half-angle, and full spread • AWS D1.1 indication rating • Fracture mechanics — critical flaw size & ASME VIII Div 2/3 evaluation • Transfer correction (dB) • Encoder step resolution converter — steps/mm ↔ steps/in, with target-distance conversion for OmniScan calibration • Imperial and metric — switch units anytime BEAM PATH DIAGRAM • Interactive cross-section of your beam path through the material • Drag the probe to see coverage and position change in real time • Rotate to landscape for a fullscreen diagram WELD OVERLAY • Overlay Single V or Double V weld joint profiles on the beam path diagram • 5 standard weld presets, or enter custom bevel angle, root opening, and root face • Index offset — see where your probe index point sits relative to the weld centerline PIPE DATA • NPS 1/8" through 48" per ASME B36.10M • OD, ID, wall thickness, and scan length for every standard schedule • Stainless steel schedules where wall thickness differs from carbon steel (dual ASME standard support) • Apple Watch companion — quick pipe lookups on your wrist CODE ACCEPT/REJECT CRITERIA • ASME Section V, Article 4 • ASME B31.3 — Process Piping • AWS D1.1 — Structural Welding • API 1104 — Pipeline Welding • Inches and millimeters, side by side SETUPS & HISTORY • Build and save complete job setups — material, angle, frequency, weld geometry, and notes • Save calculation results with names and notes, then recall them in one tap for your records • Custom presets for your most-used configurations FREE & PRO • Free to download — skip distance, Snell's law, and a hands-on trial of every Pro tool • The full pipe chart is free for your first 10 lookups, then part of Pro • UTCal Pro unlocks unlimited use of everything: the full pipe chart, saved calculation history, custom presets & weld builder, encoder calculator, fracture mechanics, beam path diagrams, weld overlay, the full code library, and the Apple Watch app • One-time purchase — no subscription, ever WHY UTCAL • Built by a UT tech who got tired of doing skip math on a paper napkin • Works on the roof, in the ditch, in the shop — no signal required • Updated for the latest ASME, AWS, and API editions Questions or feature requests: support.utcal@carboncode.app

Rope Access Logbook is an offline-first logbook for rope-access technicians working under SPRAT and IRATA certification systems. Log hours from the tower top, capture supervisor signatures on the spot, back everything up to the cloud, and prove your record with a tamper-evident hash chain. YOUR DEVICE IS THE SOURCE OF TRUTH No signal required. Your logbook lives in a local database on your phone. The cloud is optional — never required. SIGNATURES THAT MEAN SOMETHING Your supervisor signs on your screen, or from their own phone through a one-time signing link. Every signed entry is canonicalized and hashed, and each signature folds in the hash of the one before it. Touch any entry and every link after it breaks — visibly. Auditors don't have to trust the app; they can verify the chain. AMENDMENTS, NOT EDITS A signed entry is never altered. Corrections become new entries that reference the original — exactly the trail an assessor wants to see. BUILT FOR THE WORK • Rope hours: dates, tasks, access methods, heights, structure types • NDT hours: a separate verified ledger covering 11 inspection methods • Gear inventory: harnesses, ropes, and hardware with inspection history and service life • Required-field gating so entries are complete before they can be signed • Logging reminders via on-device notifications BACKED UP, RESTORABLE Your full logbook backs up to your account and restores onto a new phone — chain intact. Lose the device, not a single hour. AUDIT-GRADE EXPORTS Hand over a clean, verifiable export when assessment day comes: your hours, signatures, and chain, formatted to be checked. SUBSCRIPTION Rope Access Logbook requires a subscription, billed through your App Store account. Payment is charged on confirmation of purchase; the subscription renews automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Rope Access Logbook is an independent product. It is not endorsed by, affiliated with, or officially accepted by SPRAT or IRATA. SPRAT and IRATA are trademarks of their respective organizations. Privacy policy: https://ropeacceslogbook.com/privacy.html Terms of use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/