This AI social planner aims to help your plans make it out of the group chat

Do you ever feel like it’s impossible to find time to meet your friends or extended family? No matter how much you text, someone is always busy, plans fall through, and the back-and-forth quickly gets exhausting. 

That’s the problem Arthur Park, an International Studies and Economics student at The Johns Hopkins University, set out to solve with Dayli, an AI social planner.

In fact, Dayli is officially live on the App Store, ready to be downloaded and used. 

So, what inspired him to develop this app? In university, he found it hard to get friends out of their dorms to grab dinner or play football. What started as a minor inconvenience became a bigger challenge in his second year.

Most of his classmates were busy landing jobs. High school friends were now further and more scattered at different universities.

The harder it became to stay connected, the clearer the problem felt.

“A lot of people around us feel the same way,” he says. “How can we help everyone maintain their friendships, even when life gets busy?”

Dayli was born to solve this. The app syncs your calendars, understands your routines, and finds the best time for you and your friends to meet.

Less back-and-forth, and more plans that actually make it out of the group chat.

“Our mission is simple: to help you make more memories with the people who matter most,” Park says.

After a summer of sleepless nights, a web beta launch, and 10,000+ waitlist signups, Dayli has finally arrived. Source: Arthur Park

An AI social planner built to save our relationships

For Park, building Dayli was about understanding human behaviour — how people value time, how they connect with others, and how easily those connections can slip away if not nurtured.

The biggest lesson he has taken from the journey is that memories and moments should never be taken for granted.

“When we leave for college or go away for summer vacation, it’s easy at first to keep in touch with the friends we had before,” he says. “But once college really begins, you don’t get to make those same memories with them anymore.”

One of the first challenges for Park was calendars. Not everyone uses them, and those who do rarely keep them complete. People tend only to log important events, such as class schedules, work meetings, or flights, but they leave out travel time, trips to the gym, or casual soccer matches. All those small activities may seem insignificant on their own, but together they make up much of real life.

To solve this, Dayli took an unconventional approach. Instead of relying solely on rigid calendars, it built a system that adapts to changing needs. “We do a kind of ‘vibe check’ to see when you usually feel free, when you’re usually busy, and then create a personalised calendar that updates over time based on how you interact with our AI,” he says. 

But scheduling is also about social preferences and priorities, something that no basic calendar could capture. Park knew that if Dayli was going to help people spend more meaningful time together, it needed to learn how friendships actually worked. That is where pattern recognition came in.

The app began to track not just whether someone said yes to an event, but the context around that yes. Did they accept more often on weekends? Were mornings or evenings their preference? Which friends did they consistently prioritise? What types of activities were they most likely to agree to? 

By collecting these details, Dayli could build a social profile for each user. Instead of a generic scheduling tool, it became a system that understood individual tendencies and made suggestions that truly fit.

Park isn’t building Dayli alone. He’s teamed up with brilliant technical co-founders who make the vision possible. Source: Arthur Park

Think of it as a new, enthusiastic, and organised ‘digital friend’

The earliest version of Dayli existed as a web application, but over time, Park and his team saw its limits. “Initially, it worked as a one-on-one AI chatbot,” he says. 

“The chatbot would know everyone’s schedules by syncing calendars — Google Calendar, Apple Calendar, Outlook, etc. Once calendars were synced, you could invite people to a group, and the group would be created. Then, you could ask the AI chat something like, “Hey, can you find the best time for us to meet this week or next week to play soccer or grab dinner?” It would then generate suggestions.”

While it was functional, two problems emerged. First, people rarely organised hangouts on their laptops; they did it on their phones. Second, the web experience felt too transactional. It lacked the social energy that makes planning with friends enjoyable.

This led to a shift toward the mobile application. On mobile, Dayli could integrate more seamlessly into how people already plan their social lives. The team added group chat functions, allowing friends to communicate directly within the app.

When a hangout needed to be planned, Dayli could join the conversation, suggest times, recommend activities, and even help with practical tasks like reserving a restaurant or café. 

So, instead of being just another chatbot, Dayli became part of the group itself, a digital friend that made planning easier without pulling people out of the natural flow of conversation.

Park learned that waiting until you feel ready often means you’re already too late. Source: Arthur Park

How a ‘simple and natural’ AI social planner works

Now, there are countless calendar tools out there, but what makes Dayli different?

Park has a clear answer. Most existing tools are built with businesses in mind. They work well for logging meetings, tracking projects, and organising team events. “But when it comes to personal life, catching up with friends or making time for family, there hasn’t really been a tool that makes it simple and natural,” he says. “That’s the gap Dayli is designed to fill.” 

From the very beginning, the mission has been to help people spend more time with those who matter most. At the heart of Dayli is what Park calls an autonomous relationship management model. Even when users are busy, the app continues to track their closest connections. Instead of waiting for them to initiate plans, Dayli steps in with reminders such as, “You haven’t seen this friend in a while. Want to hang out this week?” With one tap, the app takes care of the planning, removing the stress of endless back-and-forth messaging.

This idea has struck a chord with younger users, especially college students and Gen Z. When Dayli launched its waitlist, over 300 people signed up right away, many of whom the team had never met. For Park, that was an exciting moment because it proved that both strangers and friends were eager for the solution.

At a time when many skip university, Park believes it’s invaluable. After all, it’s where he met all of Dayli’s co-founders. Source: Arthur Park

Soon, the waitlist grew to over 10,000 and reached over 1 million views across social platforms. Today it’s live on the App Store.

Looking ahead, he is focused on making Dayli even smarter. He aims to refine how the app suggests times, taking into account not just availability but also energy levels and the people users most want to see. Once that foundation is in place, the possibilities become much bigger.

“Our goal is to become the number one go-to social planning application,” he says. 

“We want to cover everything, from small coffee meetups to dinners with family or friends, Valentine’s dinners, and even larger-scale plans like vacations, including hotels and plane tickets. Because Dayli knows when you’re free, we can give you the best options available at those times. Ultimately, we want to become the one go-to app for all things social planning.”

Even with the heavy demands of building Dayli, Park makes sure to carve out time to see people who matter to him. No matter how busy he is, he commits to meeting at least one friend for lunch or dinner every day — with the help of his AI social planner.