Linear Interpolation Master vs SkyLogic

A linear interpolation calculator designed for industrial commissioning engineers. It has the following features: - Displays large numbers for when you are out in the field commissioning. - Allows quickly swapping x and y coordinates; for example from 4-20mA -> 0-100% to 0-100% -> 4-20mA.

FREE 2-Week TRIAL. NO commitment. CANCEL ANYTIME. The complete flight operations toolkit — built by pilots, for pilots. Weather briefing, dispatch, crosswind, ACN/PCN, offline hazmat decoder, and flight computer — every phase of flight covered in one app. DISPATCH — Operational Command Center The heart of SkyLogic. Enter departure, destination, and alternates — get full route weather, NOTAMs, wind analysis, and alternate window in one screen. iCloud sync between iPhone and iPad. ▸ Weather List: Color-coded METAR cards (VFR/IFR/LIFR) with wind. Build smart watchlists for Dep, Dest, and Alts with instant IATA/ICAO search. ▸ Airport Details: Live METAR/TAF/D-ATIS raw and decoded. Crosswind/headwind/tailwind per runway, ceiling and visibility in color-coded Analysis view, usable window per airport. Personal notes and favorite spots pinned to each airport. ▸ Flight Planner: Great Circle & Rhumb Line with up to 6 alternates. Day/Night terminator overlay. Unified weather briefing for your entire route. ▸ Smart NOTAMs: Critical closures in red, key info in yellow. Smart offline backup — always available in the cockpit. ▸ SIGWX Charts: Global significant weather by region and forecast time. Anticipate jet streams, frontal systems, and convective activity. ▸ World Weather Map: Live turbulence, icing, and convective zones. Tap for SIGMETs, AIRMETs, TAF/METAR, radar, and clouds. ▸ Night Block: Solar algorithm calculates exact Day vs. Night hours along your route for precise logbook entries. UN DECODER — 100% Offline Hazmat Built to IATA DGR standards. No internet required — cockpit, ramp, anywhere. ▸ UN Number lookup — instantly see if a substance is forbidden on passenger or cargo aircraft ▸ Drill Code decoder ▸ Passenger & Crew limits — resolve gate disputes in seconds FLIGHT COMPUTER ▸ Density & Pressure Altitude from OAT and QNH ▸ TAS / IAS / Mach conversion by altitude and temperature ▸ In-flight wind from GS/TAS difference ▸ Wind Correction Angle, True Heading, Ground Speed ▸ GS to IAS/TAS conversion METAR / TAF DECODER Paste any raw METAR — every token decoded line by line in plain English. Wind, visibility, clouds, QNH, RVR, and regional additions covered. ACN / PCN Extensive aircraft database covering rigid and flexible pavements. Select type, weight, and subgrade — get ACN instantly and compare against runway PCN to confirm pavement compatibility. ALTITUDE CORRECTION Cold temperature IFR corrections in seconds. Avoid dangerous approach altitude errors in ISA-low conditions — get the corrected value before you need it. CONVERTER Distance, speed, temperature, pressure, weight, volume — instant result as you type. SUNRISE / SUNSET Civil, nautical, and astronomical twilight for any coordinate and date. Imsak and Iftar times included. Night flight planning and Day/Night block calculation. TOOLBOX ▸ DME / Altitude Profile — FPA or RoD at any fix, RoD table by speed ▸ Gradient Calculator — GS + gradient → vertical speed (fpm) ▸ Hydroplaning Speed — dynamic and total from tire pressure ▸ SNOWTAM Decoder — surface condition and braking action ▸ Distance & Track — between two coordinates ▸ IGA Runway Details — Istanbul Airport CDM by flight number ▸ Reference Tables — standard atmosphere and conversion factors ▸ XWind — crosswind and headwind, knots or m/s, color-coded limits ▸ Crew Rest — minimum rest from duty times, multi-segment support ▸ Time Calc — HH:MM arithmetic with operation history PRICING All premium features free for 14 days. Choose Monthly or Annual after your trial. Cancel anytime up to 24 hours before renewal. DESIGNED FOR Airline and general aviation pilots, first officers, flight dispatchers, and flight operations officers. Professional IFR preflight briefing, hazmat reference, runway analysis, and logbook calculation — wherever you fly. One app. Every tool. Always with you.