Electronic Calculator vs RigCheck

Amperio is the essential electronics toolkit every student and engineer needs! Whether you're studying electrical engineering or working on circuit projects, Amperio provides instant, accurate calculations for your everyday electronics needs. KEY FEATURES: Ohm's Law Calculator Calculate voltage, current, resistance, and power with Amperio's intuitive interface. Input any two values and instantly get your results - perfect for circuit analysis and component selection. Resistor Color Code Decoder Never struggle with resistor values again! Amperio's visual color band selector works with 4-band and 5-band resistors. Simply tap the colors and get instant resistance values with tolerance. Voltage Divider Calculator Design and analyze voltage divider circuits instantly! Input any three values (Vin, Vout, R1, R2) and Amperio calculates the missing value - essential for signal conditioning and biasing circuits. Smart Unit Converter Convert between voltage (mV, V, kV), current (μA, mA, A), resistance (Ω, kΩ, MΩ), frequency (Hz, kHz, MHz, GHz), and power units seamlessly. WHY CHOOSE AMPERIO: - Lightning Fast - Instant calculations, no loading screens - Student Friendly - Perfect for homework and lab work - Professional Grade - Accurate formulas engineers trust - Clean Interface - No clutter, just results - Works Offline - Calculate anywhere, anytime - No Ads Ever - Premium experience with lifetime access PERFECT FOR: Electronics engineering students Electrical engineers and technicians Circuit design and analysis Component selection and verification Homework and exam preparation Lab work and projects Electronics hobbyists and makers Amperio transforms complex electronics calculations into simple, instant results. Get the complete professional toolkit for just $3.99 - less than a coffee, but lasts forever! Download Amperio today and experience the fastest way to solve circuit problems on your iPhone. PREMIUM FEATURES INCLUDED: 4 Essential calculators (Ohm's Law, Voltage Divider, Resistor Decoder, Unit Converter) No advertisements ever Offline functionality Lifetime access - pay once, use forever Professional-grade accuracy Coming in Future Updates: Advanced circuit calculators and filter design Calculation history with favorites Photo resistor value recognition Dark mode interface Export and share results One purchase. Four essential tools. Unlimited calculations. Amperio - the smart investment for serious electronics work. --- Learn more: https://amperio.paulcontre.com Terms of Use: https://amperio.paulcontre.com/terms Need help?: help@paulcontre.com EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://amperio.paulcontre.com/privacy

Your standing rigging keeps your mast up. Do you know when it was last inspected? RigCheck is the first and only app designed specifically for sailors who want to stay on top of their rigging condition.  Whether you're a weekend cruiser, an offshore passage maker, or a racing skipper — knowing the state of your rig isn't optional. It's the difference between a safe passage and a dismasting. Built by sailors, for sailors. SET UP YOUR BOAT IN MINUTES Tell RigCheck your rig type, spreader configuration, and rigging details. The app automatically generates every component on your boat — from cap shrouds and forestay to turnbuckles, toggles, swage fittings, and chainplates. Supports sloops, cutters, ketches, yawls, schooners, fractional rigs, gaff rigs, junk rigs, cat rigs, and more. Single, double, or triple spreader configurations. Multi-mast rigs with independent spreader levels per mast. INSPECT WITH CONFIDENCE Four professional-grade inspection checklists guide you through every check: - Pre-Sail Quick Check (15 items) — the essentials before every sail - Seasonal Inspection (40 items) — includes the nylon stocking test and swage magnification - Annual Deep Inspection (48 items) — dye penetrant testing, wire diameter measurement, tension readings - Post-Storm Damage Check (10 items) — focused on high-load damage after heavy weather Every checklist item tells you exactly what to look for, how to check it, and what failure looks like — the same knowledge a professional rigger uses. TRACK EVERYTHING OVER TIME This is what no other app does. Every inspection creates a permanent record. Every component — all 30 to 60 of them — tracks its own history: condition ratings, tension readings, inspection notes, and photos. Watch your rig age over the seasons. Spot the slow degradation before it becomes dangerous. Record standing rigging tension with your Loos gauge and track changes across haul-outs. A cap shroud that drops from 30 to 25 between seasons is telling you something important. VISUAL RIG DIAGRAM Tap directly on an interactive rigging diagram to inspect individual components. See your entire rig at a glance, color-coded by condition. Uses standard rigger nomenclature — V1, D1F, D1A, D2, D3 — so you speak the same language as your surveyor. PHOTO LOGBOOK WITH MARKUP Document your rigging with photos linked to specific components. Circle that hairline crack in a swage fitting. Annotate the corrosion creeping across a chainplate. Build a visual history you can reference at haul-out, share with your rigger, or present to a surveyor. KNOW YOUR RIG'S LIFESPAN RigCheck tracks install dates and material-specific lifespans for every component: - Wire rigging (1x19): 12 years - Rod rigging: 15 years - Dyneema: 8 years - PBO: 5 years - Stainless hardware: 20 years The app calculates your rig age and warns you as components approach end of life. No more guessing when to replace. RIGGING KNOWLEDGE BASE Learn what a professional rigger knows. In-app articles cover wire types, rod rigging, synthetic standing rigging, the nylon stocking test, swage fitting inspection, chainplate failures, common failure modes, replacement schedules, winter care, and insurance survey requirements. MANAGE YOUR FLEET Own multiple boats? RigCheck manages them all. Switch between boats instantly. Each boat maintains its own component inventory, inspection history, photo logbook, and tension records. COMPLETELY OFFLINE No account required. No subscription. No data leaves your device. RigCheck works at anchor, in a boatyard, or 500 miles offshore with zero connectivity. Your rigging data stays on your device, always accessible when you need it. There is no other app in the App Store that lets you systematically track your sailing rig condition over time. RigCheck gives you the tools and knowledge a professional rigger uses — in your pocket, every time you step aboard. Your rig is the most critical safety system on your boat. Check it.