Architect's Formulator vs Invoice Manager

ARCHITECT'S FORMULATOR is the ultimate professional calculator for architects, engineers, and construction professionals — with over 2,000 formulas in a single app. Whether you're sizing beams, designing HVAC systems, calculating voltage drops, or checking ADA compliance, Architect's Formulator covers every discipline — structural, electrical, mechanical, plumbing, and carpentry — plus unit conversions, reference tables, and ADA accessibility resources. ARCHITECTURE & STRUCTURAL — 29 categories covering beam loads across single through four continuous spans, concrete design, flat plate analysis, steel design, masonry, environmental loads (wind, snow, seismic), foundation and retaining walls, wood design, acoustic absorption, 100+ material weights, fire egress, roof drainage, solar/daylighting, thermal performance, site grading, cost estimating, and more. ELECTRICAL — 15 categories for AC/DC circuits, Ohm's Law, motors, transformers, voltage drop, wiring/conduit sizing, batteries, impedance, power demand, lighting design, UPS sizing, and operating costs. CARPENTRY — 8 categories for lumber, stairs, safe beam loads, wall loads, roofing (shed, gable, hip), railing/deck framing, crown molding, and materials estimation for drywall, concrete, paint, and plywood. PLUMBING & HVAC — 29 categories covering pipe sizing, water flow, pumps, boilers, and a comprehensive HVAC library including airside/waterside heat transfer, duct sizing, fan and pump laws, gas laws, psychrometrics, refrigeration, heating/cooling load design, energy content for 16 fuel types, ventilation rates per ASHRAE 62.1, and steam/hydronic systems. CONVERSIONS — 17 categories with 500+ conversions for pressures, flows, BTU, horsepower, watts, frequency, linear/liquid/square/cubic measures, weights, and a Metric library with 280+ conversions across length, area, volume, mass, energy, power, and more. TEMPERATURE SCALES — Convert between all 8 scales: Celsius, Fahrenheit, Kelvin, Rankine, Réaumur, Newton, Delisle, and Rømer. REFERENCE TABLES — IBC Occupancy Loads, Brick Sizes, Lumber Dimensions, AWG Wire Gauge, Concrete Mix Ratios, and Insulation R-Values. ADA REFERENCE — 50 illustrated diagrams for wheelchair clearances, ramps, grab bars, elevators, accessible parking, and restroom layouts, plus 17 PDF documents with full ADA guidelines. FEATURES: • Over 2,000 professional formulas • US and Metric units with one-tap switching • Save and export calculations • Favorite your most-used calculators • One-time premium upgrade — no subscriptions From foundation to finish, every formula for every phase of the job.

Every invoice app can tell you who owes you money. This one picks up the phone and asks for it. Invoice Manager Pro now comes with an AI receptionist. It answers the calls you miss while you are on a job, books the work, and when an invoice goes past due it calls the customer, politely, in your name, only when you say go, then tells you exactly what they said. Still no monthly fee. Still works offline. Still yours on every device. YOUR AI RECEPTIONIST • Chases late invoices by phone. It knows who owes what and for how long, because it is reading your ledger, not guessing. You approve who gets called and when. • Answers the calls you cannot take. Missed calls are missed jobs. It picks up, answers questions about your services and hours, and takes a message you can read later. • Books the job. New enquiries go straight into your calendar with the customer's details already filled in. • Identifies itself as an AI, on a recorded line, every time. You get a full transcript, a summary and the outcome of every call. • You set the tone. Firm with the customer who is 90 days late, gentle with the one who has always paid. THE REST OF THE BUSINESS, STILL INCLUDED • Invoices, estimates and quotes, send one in under a minute • Receipt scanner, snap it and it files itself • Mileage tracker, GPS logs every trip for you • Time tracking, bill what you actually worked • Accounting and tax tools for 15 countries • Team, payroll and schedules • Inventory and point of sale • Projects, reports and analytics • Chat or talk to your AI assistant about any of it GET PAID YOUR WAY Stripe, Square, Apple Pay, PayPal, Venmo, Zelle and bank transfer, straight from the invoice. NO SUBSCRIPTION FOR THE APP Invoice Manager Pro is a one-time purchase, with the receptionist as an optional add-on you can switch off any month you do not need it. Unlimited invoices. Unlimited devices. iPhone, iPad and Mac, in sync. 15+ TEMPLATES Built for construction, medical, legal, creative, consulting and more. BUILT FOR • Contractors who are owed money by three people right now • Freelancers who hate the follow-up email • Service businesses losing jobs to voicemail • Anyone who would rather be working than chasing TERMS OF USE: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/