TruAirspeed vs A380 Clipboard

TruAirspeed is a True Airspeed Calculator for the iPhone and iPad. It's a bit different from other true airspeed calculators, in which the pressure altitude is an input. This requires resetting the altimeter to the standard sea level pressure of 29.92"Hg to read the pressure altitude. With TruAirspeed, you input the indicated altitude and the Kollsman window's pressure setting — the app then calculates the pressure altitude, density altitude, true airspeed and mach number for you. The calculations involved take full account of compressibility effects, but not shock waves, so it's limited to subsonic, non-transonic flight only. You have a choice of units for inputs and results, and you may choose either a calculator-style keypad (top row: 7-8-9) or a telephone-style keypad (top row: 1-2-3). You may also set a correction factor for your bird's airspeed indicator/pitot-static system, if you know it (mine is 0.95).

Airbus A380 Clipboard An A380 Clipboard "ECAM" lookalike with the most important Pre-Flight Checks and all you need for your entire flight. Includes plenty of procedures and features such as: Basic calculator; Quick Scratchpad (Pre-Flight); NADP procedures;  De-Rate Thrust settings;  Loadsheet Limitations and Cargo Hold containers Diagram and Dangerous goods; Fuel Discrepancy calculator;  Time selector of the Departure time in UTC, returning automatically the "Time to Go" (T -); Checklist creator Notes Creator Limitations; Memory Items; In-Flight Contingencies Procedures for OCA, Russia and China; IFPB and TIBA procedures; Meters to Feet conversion table for China and Russia; TOC/CRZ actions checklist, TOD/APPRCH actions Checklist; In-flight Emergencies procedures such as, Lost comms for NAT, Shannon, Murmansks and Magadan, Lost Navigation capability procedures for NAT, and "square" of equipment required for NAT; Cold Operations Checklist; Altimetry calculator for Pressure Altitude, True Altitude and Density Altitude; Cold Temperature Correction calculator; Diversion Checklist and Alternate option page; Failures before T.O. diagram; Minimum Cabin emergency equipment; A/C MSN & engine search (Middle East carrier); Flight Rest calculator; IRS/Polar Ops; Seating Diagrams; GRF - SNOWTAM decoder; Snowtam decoder (Used in Russia); Holdover time decoder and calculator; RWY Performance Basis for T.O. and Landing tables; U.S. Units converter and SM Visibility to Meters table; Flight Time Limitation for variations calculator; some useful Public Address; Dedicated page for notes using Pencil or finger.