Marriage is a major event in one's life but preparing for it can be bothersome.

To help couples make their preparations easier, many wedding service companies in Japan are now offering computer software and smartphone applications to make organizing the big day easier. The programs are also important tools to attract customers in a stagnant nuptials market amid a shrinking population.

Koki Fukumoto, a 26-year-old office worker planning his wedding in November, said he uses the free Wedding Chic smartphone application provided by major wedding services company Novarese Inc.