Right Angle vs Roadworthy

Right Angle is a calculator built for carpenters, builders, surveyors, machinists, and engineers — anyone who needs to solve a triangle, a trapezoid, or a circle without reaching for a notepad and the law of sines. Enter any valid combination of sides and angles and Right Angle solves the rest, including perimeter and area. The right triangle calculator is included for free; every other shape unlocks with a one-time Pro purchase or subscription. SHAPES • Right triangle (free) • Oblique triangle • Isosceles, right, and general trapezoids • Full circle — enter radius, diameter, or circumference • Segment of a circle ANGLE FORMATS • Decimal degrees • Radians • Degrees / minutes / seconds (DMS) • Percent grade • Pitch (x-over-12) LENGTH FORMATS • Decimal — the original, unitless entry. Best for metric. • Feet, inches & fractions — type values like 2' 5 1/2". • Inches & fractions — type values like 40 1/2". Pick a fraction precision from 1/2 down to 1/64 inch. Inputs and outputs both use the format you choose, and you can switch any time from Settings. DESIGNED FOR THE JOB SITE • A custom on-screen keyboard puts the symbols you need — feet, inches, fraction slash, degree, prime, double-prime — one tap away. • Helpful errors when an input combination can't be solved, instead of silent failures. • Available in English and Spanish — iOS picks the language to match your device. • Full VoiceOver support across the keyboard, input fields, shape diagrams, and results. Animations respect the Reduce Motion setting. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: http://rightangleapp.com/privacy.html

Roadworthy keeps track of everything you maintain. Cars, trucks, trailers, boats, tractors, mowers — anything with an odometer, an hour meter, or neither. Most maintenance apps assume you own one car and drive it on roads. Roadworthy doesn't assume anything. MILES, HOURS, OR DATES Set your own intervals however the job actually works. A motorhome tracks chassis miles and generator hours separately, in the same profile. A trailer runs on dates alone. Every maintenance item picks its own basis. KNOWS WHEN, NOT JUST HOW FAR Roadworthy learns how fast you actually use each machine from your own readings, so a reminder says "420 miles — about eighteen days" rather than leaving you to work it out. SAYS WHEN IT DOESN'T KNOW Leave a mower sitting all winter and it stops projecting rather than claiming it's two hundred hours overdue in February. No invented numbers, anywhere in the app. YOUR SCHEDULE, FROM YOUR MANUAL A guided builder turns the owner's manual in your glovebox into a real maintenance schedule in about ten minutes. Save it, reuse it on a second identical truck, or send it to someone with the same vehicle. ANYTHING YOU WANT TRACKED Type "transfer case fluid" and it works exactly like the built-in oil change — same reminders, same history, same cost tracking. Nothing here is second-class. FIFTEEN SECONDS TO LOG Tap what's due, adjust the odometer, save. Fuel, service, or a meter reading — from the app, a home screen widget, or by asking Siri. WHAT IT COSTS TO RUN Cost per mile, spend by category, fuel economy measured properly from full tank to full tank. Plus a separate view of annual ownership costs, because registration and insurance don't belong in a monthly chart. FREE - Two machines - Unlimited service and fuel logging - Your own maintenance schedules - Full history, search and filters - Insights and cost charts - Reminders and notifications - CSV and JSON export ROADWORTHY PRO - Unlimited machines - iCloud sync across your devices - Photos and documents - Expenses and renewal reminders - Parts inventory - Home screen widgets and Siri $2.49/month, $14.99/year, or $49.99 once. The yearly plan starts with a one-week free trial. YOUR DATA STAYS YOURS There is no account and no server. Everything lives on your phone. Sync, when you turn it on, goes to your own private iCloud — which we cannot read. If a subscription ever lapses, nothing you've entered goes away. Every record stays readable and exportable, every machine keeps working, every photo stays viewable. You simply can't add new ones. That's a promise, not a policy we might revisit. No ads. No tracking. No analytics. Export everything, free, forever. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/