It&#39;s that time of the year again, it&#39;s time to celebrate the feast of Saint Valentine. So, how exactly does tech figure into it? Well, search for V-Day on the Play Store and you&#39;ll have your answer. Google, Apple and Microsoft&#39;s app stores can be very useful in planning a successful Valentine&#39;s Day. Tinder may have got you a date, but it&#39;s up to you to keep the spark alive. These apps will help you do so.