ExpressKeys vs Sun Sizer

ExpressKeys is a secure password manager from the makers of ExpressVPN. Store, autofill, and protect your passwords, credit cards, and sensitive data in a secure vault with end-to-end, zero-knowledge encryption across all your devices. Never forget a password again. Save passwords and log in to apps and websites instantly. Keep your accounts safe from data breaches with strong, unique passwords and built-in password health tools. YOUR PASSWORD MANAGER FOR EVERY LOGIN - Store and manage unlimited passwords - Autofill passwords across apps and websites - Zero-knowledge encryption: No one can access your data, not even ExpressVPN - Password Generator for strong, unique passwords in one tap - Securely store credit cards, notes, and personal information - Sync your secure vault across devices ExpressKeys works wherever you log in, so you can access your passwords quickly and securely. AUTOFILL PASSWORDS INSTANTLY - Log in to your favorite apps and websites without typing - Use passwords seamlessly - Save time with fast, secure autofill - Works with apps, browsers, and mobile websites BUILT WITH EXPRESSVPN SECURITY - Your data is protected with the same security expertise trusted by millions of ExpressVPN users worldwide. - End-to-end encryption - Zero-knowledge architecture — not even ExpressVPN can access your vault - Designed with privacy and security at the core MORE THAN JUST PASSWORDS - Store credit card details for fast checkout - Save secure notes and personal information - Store and generate 2FA codes for extra protection - Use Password Health to find weak or reused passwords STOP REUSING PASSWORDS. START PROTECTING YOUR ACCOUNTS. Data breaches happen every day. Reusing passwords puts your accounts at risk. ExpressKeys helps you create strong passwords, keep them secure, and log in safely wherever you go. From the team behind ExpressVPN, ExpressKeys is a password manager and password app built for security, convenience, and peace of mind. This is an actively evolving app, with improvements and new features added regularly. Terms of Service https://www.expressvpn.com/tos Privacy Policy https://www.expressvpn.com/privacy-policy

Sun Sizer Pro is a solar design toolkit for installers, DIY builders and off-grid homesteaders. Size the array, check the wiring, measure the site and hand the client a clean PDF — all on your phone, even with no signal on the roof. Everything runs on the device. No account, no cloud, no ads, and nothing you enter ever leaves your phone. DESIGN THE ARRAY • String Sizing — minimum and maximum panels per string from your coldest and hottest site temperatures, checked against the inverter's voltage window. • Inverter Match — DC:AC ratio, current per MPPT input and combiner checks. • Area → Panels — enter roof length, width and fire setbacks and see a to-scale layout of how many panels fit, in portrait or landscape. • Row Spacing — shade-free row pitch for a 9 am–3 pm window on the shortest day, now including sloped ground. WIRE IT SAFELY • Voltage Drop — AWG or mm², copper or aluminum, AC or DC. • Ampacity & OCPD — NEC-style conductor sizing with temperature and conduit-fill derating, and the breaker to match. • Battery Cables & Fuses — DC cable size, fuse rating and interrupt rating for battery banks. READ THE SITE • Sun Path & Tilt — a watch-face dial of the sun's path for any day, sunrise and sunset, and the best tilt for year-round, summer or winter production. • Measure Tilt & Azimuth — lay the phone on a panel to read its angle and the direction it faces, with roof pitch in twelfths. • Shade & Obstructions — mark a tree or chimney with the camera to get its height and see exactly when it shades the array. • Roof & Ground Plane — capture a roof's tilt, facing and size with the camera. • Built-in NASA climate data for most of the world, so production estimates use real monthly sunlight and temperatures for the site. ESTIMATE THE PAYBACK • Production & ROI — monthly and annual kWh, savings and payback, shown as an honest range rather than a single hopeful number. • Over the system's life — panel degradation, rising electricity prices and an optional inverter replacement, with lifetime output and cost per kWh. • Off-Grid Sizing — appliance loads, days of autonomy, battery bank, worst-month array size and inverter surge. • Charge Controller — MPPT or PWM sizing with cold-weather voltage checks. ON THE JOB • Conduit & Cable Run — walk the route with the camera and send the length straight to Voltage Drop. • Working Space — check the clearance in front of an inverter or panelboard against NEC 110.26. • Projects — enter the site and equipment once and every calculator uses them. Duplicate a project to compare two designs. • PDF reports — share a clear report with code checks, estimates and assumptions. • Equipment library — save your panels, inverters and batteries, and share whole projects with a colleague by AirDrop. BUILT FOR THE FIELD • Works completely offline. • Imperial or metric units. • A high-contrast sunlight mode for bright days on the roof. • Designed for iPhone and iPad. Camera measuring is sharpest on iPhone Pro and iPad Pro models with LiDAR, and every camera tool also accepts typed measurements. FREE AND PREMIUM String Sizing and Sun Path & Tilt are free. A one-time Premium purchase unlocks every other tool — no subscription. Sun Sizer Pro is a design aid. Always confirm your results against the equipment manufacturer's specifications and your local electrical code before installing.