Matchmaker apps help you in finding the “Match compatibility index” Indian astrology point of view. Any number above 18 is considered to be a good fit for marriage.
The app takes Nakshatra of Boy and Girl and then does the numeric calculation based on Vedic Astrology and gives the number from 0-36 considered as Match compatibility index. While 36 is being the “perfect match”, anything below 18 is considered as “Not fit for marriage”.
The app is free for use but once you run 10 matches, then you will have to purchase credit to use it again.