There are many different synonyms for the phrase "dating service" depending on the type of service being offered. Online dating websites are commonly referred to as "matchmaking services" or "online dating apps." Companies that offer personalized match-making services may be referred to as "introduction agencies" or "dating agencies." For those looking for more short-term or casual relationships, apps like Tinder may be referred to as "hookup apps." Additionally, there are also services offered specifically for people seeking same-sex relationships, known as "gay dating/ matchmaking services." Finally, newer services that focus on more specific requirements, such as age range or specific interests, may be referred to as "niche dating services".