Calculate hold-over time fast and easy with the HOTCalculator! With this app you can find the holdover-time in a few seconds. No more searching for the right page and table in your paper manuals. Very handy tool for all pilots during winter ops. The perfect tool to include in your Electronic Flight Bag! Features: - Support for Type I, Type II, Type III and Type IV de-icing and anti-icing fluids. - Use °C or °F as appropriate. - Usable in flight mode, when you need it the most. - Set a timer that gives off an alarm when the holdover-time expires. - Includes Allowance Times for Type IV fluids.