A recent New Zealand health survey found 1.2 million New Zealanders are obese, more than was recorded in the 2012 report.
The Defence Force is one of the country's fittest organisations and it's critical for people to remain in peak physical condition, says General Keating.
"Personnel can be called upon to conduct, by land, air or sea, activities such as carrying 30kg packs, completing search and rescue missions under onerous conditions, assisting in rebuilding after a natural disaster along with numerous other demanding activities in support of the nation.
"So we make sure our people have the support they need to help keep them in top condition."
The app is simple to use, suitable for any fitness level and free for Android and iPhone.