I am Roland Peeters, currently flying as a captain on the 777 with KLM Royal Dutch Airlines.
The development of landing distance calculator was started in 2015. Back then it was an Excel version only for the 747-400 which was for my own personal use only. Later I added the whole KLM Boeing fleet and the first iPad version was released in September 2021.
Since then many new functions have been added, and from 2023 other airlines will be added, starting with British Airways.
Until now the app is still free of charge. Due to a co-operation with WIngs of Support it is possible, without obligation, to make an in app donation to charity.
I hope you will enjoy using this app.