Construction Calculator vs E3 Connect

Build faster, measure smarter. Pro² is a complete construction calculator for decking, roofing, concrete, stairs, framing and precise on-site measurements. It’s made for builders, carpenters, contractors and serious DIY who need accurate answers in seconds. DECKING & FLOORING • Area, board runs, spacing and waste allowance • Material takeoff for boards and joists ROOFING (METAL & TILE) • Coverage and sheet/tile counts • Overhangs, pitch, angle and rafter length helpers STAIRS & STRINGERS • Rise/run, slope %, angle (°) and stringer length • Clear breakdowns and step-by-step visuals BALUSTERS, RAILING & EVEN SPACING • Perfect marks from 0 to full length • Spacing tables for clean, consistent layouts CONCRETE, ASPHALT, GRAVEL & SOIL • Volume estimators for slabs, pads, footings and fills • Smart rounding for real-world quantities SLOPE, PITCH & ANGLES • Fast framing helpers for cuts and layout • Metric and imperial support in every tool UNIT CONVERTER • Length, area, volume, density and weight • Built for mixed-unit jobs (mm, ft, inches) QUICK CALCULATOR • Running history with one-tap copy/share MADE FOR THE JOBSITE • Fraction support and practical defaults • Works fully offline—no signal required • Clean visuals that stay readable outdoors WHY PROS USE PRO² • One app instead of juggling multiple separate tools • Accurate results, simple inputs and clear diagrams • New tools and improvements arrive regularly based on user feedback Pro² is built for professional construction, carpentry, decking, roofing and framing work—yet intuitive enough for DIY home projects. Upgrade to unlock additional tools and advanced features when you’re ready to grow your toolkit. SUBSCRIPTION TERMS • Carpenter Pro is an optional auto-renewing subscription with Weekly and Annual plans. • A 3-day free trial is available on the Annual plan. • Payment is charged to your Apple ID and subscriptions renew automatically unless cancelled at least 24 hours before the end of the period. • You can manage or cancel your subscription in your App Store account settings. • Lifetime is a one-time purchase and does not auto-renew. • The localized price is shown in-app before you confirm. Terms of Use (Apple EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://shapkin.dev/apps/carpenter/privacy.html

Energy Connect helps homeowners optimize their home's energy efficiency and reduce utility costs. KEY FEATURES: Home Energy Assessment Complete a comprehensive assessment to understand your home's current energy usage and identify improvement opportunities. Personalized Recommendations Get customized upgrade suggestions based on your home's specific needs, from HVAC improvements to insulation and solar installations. Access Incentives & Rebates Discover available federal, state, and local incentives to help offset the cost of energy-efficient upgrades. Connect with Certified Professionals Find and connect with vetted energy service providers in your area, including: - HVAC specialists - Solar installers - Insulation experts - Energy auditors - Licensed electricians Energy Breakdown Analysis Visualize your home's energy consumption across heating, cooling, appliances, and more. WHY ENERGY CONNECT? Save Money: Reduce your monthly utility bills with smart energy upgrades Go Green: Lower your carbon footprint and contribute to environmental sustainability Expert Guidance: Access qualified professionals who can help implement your energy improvements Financial Support: Find rebates and incentives to make upgrades more affordable Whether you're a homeowner looking to reduce energy costs or a service provider seeking to connect with customers, Energy Connect makes the process simple and efficient. Download Energy Connect today and start your journey toward a more energy-efficient home!