The best alternatives to Marconf are Upcoming.org, Reaching Soon, and Morse. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of Marconf?
AssemblyAI— Speech-to-Text API with superhuman accuracy
Upcoming is a simple way to share and discover interesting events from your friends, followers, and the artists and organizations you care about. Add the stuff you're most excited about going to, recommend interesting stuff you find, and follow people with tastes like your own.
Morse allows you to discover nearby events, find out of the way places and connect with people around you in real time. Creating or shouting out events is simple, whether you are hosting an exhibition or want to give an ad-hoc lesson.
✔ Plan Your Day - Get outing plans based on the events, places and activity you want to do and the people you are going out with, in just 2 taps.
✔ Explore Your City - Nightlife, Amazing Events, Trending places, Fun places, Late night places, Special events, Date places, Perfect hangouts, Weekend activities.
✔ Personalized Destinations - Based on your interests and likes, we would tell you awesome places, events and happening things to do in the city, specially handpicked for you.
DownToDash is a mobile app that connects people based on what they are down to do like workouts, sports, eating, travelling and other activities. Users can create a specific plan (example: play Tennis on Thursday at 5 pm) and other users can swipe down to join it.