By someone who has tried too many of them and has the failed Discord server to prove it.
I used to think building an online community was easy.
You pick an app. You invite some people. You post something interesting. They respond. Repeat forever.
That’s not how it works. I know that now. I learned it the hard way, and I’ll get to that story in a bit. But first, let me back up because a lot of people are still fuzzy on what online community apps even are – and why it matters which one you choose.
What Is an Online Community App, Exactly?
An online community app is any platform specifically designed to help groups of people connect, talk, and do things together over the internet.
That sounds obvious. But there’s a difference between a social media app and a community app. Instagram is not a community app. It’s a broadcast platform. You post. People watch. The conversation is mostly shallow.
A real community app does something different. It creates space for ongoing relationships. Members talk to each other — not just to you. There are channels, threads, rooms, or forums where conversations can actually live and grow over time.
Think of it like the difference between a stadium concert and a house party. Social media is the concert. Everyone watches the stage. Online community apps are the house party. People split into smaller groups. They find the corners of the room that interest them. They actually talk.
Some community apps are built for interest groups – hobbies, fandoms, and neighbourhoods. Others are built for professional networks, paid courses, or creator audiences. A few try to do everything. Most fail at that last part.
The major names you’ll come across: Discord, Slack, Reddit, Facebook Groups, Circle, Skool, and Mighty Networks. There are others, but these are the ones people actually use.
Why Do Online Community Apps Even Matter?
Here’s the honest answer. Because the internet is lonely.
I know that sounds dramatic. But think about your average day online. You scroll. You consume. Someone posts something funny, and you laugh by yourself. Someone posts something that makes you angry; you get angry by yourself. The whole experience is weirdly isolating despite being surrounded by millions of people.
Online communities fix that — when they work.
And when they work, they work really well. I’ve seen communities where people found job opportunities, business partners, and actual friends they later met in real life. I’m in a writing community right now where someone’s book got published partly because of feedback they got from other members. That’s not a small thing.
There’s also a very practical reason these apps matter if you’re a creator, educator, or business owner. Email lists are great, but they’re one-directional. Social media reach is declining year after year. A community you own — where people show up because they genuinely want to — is one of the most stable things you can build online right now.
It’s also where loyalty lives. Someone who’s part of your community will buy from you before they even check the price. They trust you because they’ve watched you show up consistently inside a space you both share. That relationship is worth more than any ad campaign.
For regular people who aren’t building a business, community apps matter because humans need other humans who share their interests. That’s it. Simple, old truth.
There’s also a data point worth knowing. Research on online behaviour has consistently shown that people who actively participate in communities — not just lurk, but actually post and engage — report feeling less isolated and more motivated. That tracks with my own experience. The communities I’ve genuinely participated in have pushed me harder than any solo learning binge ever did.
When you see someone else in the same stage as you figure something out, you think, ‘Okay, I can figure that out too.’ When you share a struggle and three people respond with “I felt the exact same way,” something shifts. You stop thinking of your challenges as personal failures and start seeing them as normal parts of a shared experience.
That’s not something a YouTube tutorial or an email newsletter can give you. Only a community can.
The Main Players: A Honest Look at Each One
Discord
Discord started as a tool for gamers. Then the pandemic happened, and suddenly everyone was on it. Book clubs. Writing groups. Crypto projects. Language learners. Indie musicians. It became the catch-all community app of choice for a huge number of people.
What Discord does well: it’s free, it’s fast, it has voice channels and video rooms built right in, and it supports communities of any size. The interface is actually quite intuitive once you get past the first fifteen minutes of confusion.
What Discord does badly: discoverability. If you’re not already in a server, you probably won’t find one organically. There’s no real search experience like Reddit has. Also, Discord channels can get chaotic fast. If your community grows to even a few hundred people, conversations move so quickly that most members stop engaging because they feel like they’ve already missed too much.
My honest take: Discord is excellent for tight-knit groups and for communities built around real-time activity – gaming, live events, and daily check-ins. It’s harder to sustain as a long-term knowledge resource because conversations disappear into the scroll.
Slack
Slack is Discord for offices. Or at least that’s how most people use it.
It’s clean, it’s professional, and it has integrations with basically every work tool imaginable. For internal teams, it’s one of the best tools out there. For communities? It’s expensive and it has a message history limit on free plans that makes it genuinely frustrating.
There are some public Slack communities that work well — usually around niche professional topics. But the cost of running one at any real scale is high. And Slack wasn’t really designed for communities of strangers. It was designed for colleagues who already know each other.
My honest take: Use Slack for your team. Don’t try to build a public community there unless you have a budget and a very specific professional audience in mind.
Reddit is the internet’s living room. It’s been doing online communities longer than most of the other apps on this list, and it shows.
The structure of Reddit — subreddits organised around specific topics, upvoting, and threaded conversations — is genuinely brilliant for knowledge sharing. You can find a subreddit for almost anything. And the good ones have years of searchable, organised discussions that are genuinely useful.
What Reddit struggles with: it’s hard to build a community around you specifically. Reddit communities work best when they’re about a topic, not a person. If you’re a creator or educator trying to build an audience, Reddit will humble you quickly. Self-promotion is often banned or severely limited. Moderating a Reddit community is also a full-time unpaid job.
My honest take: Reddit is one of the best places to participate in communities. It’s not the best place to build one from scratch unless you’re very patient and genuinely committed to the topic, not to growing your brand.
Facebook Groups
I know. I know.
But Facebook Groups still have hundreds of millions of active users. Especially in demographics that aren’t on Discord or Reddit. Parents. Local businesses. People over forty who got online before Discord existed.
Facebook Groups can be genuinely active and useful. The problem is you’re entirely at the mercy of Facebook’s algorithm. The platform decides what posts members see. It can throttle your reach overnight. You don’t own anything. If Facebook decides to change how groups work tomorrow – and they have done exactly that multiple times – you’re stuck.
There’s also no great way to organise content in a Facebook group. Everything is chronological or algorithm-sorted. Finding a specific post from six months ago is a nightmare.
My honest take: Facebook groups are fine for communities that already exist in your life — local groups, family groups, and groups around an event. I wouldn’t build something I care about on top of Facebook’s infrastructure.
Mighty Networks
Mighty Networks has been around since 2017, which makes it one of the older dedicated community platforms. It was built specifically for creators who want to combine community, courses, and events in one place — before that was even a popular idea.
The standout feature is the native app experience. Your community gets a branded mobile app, which sounds like a small thing until you realise how much it changes engagement. People are on their phones. If your community have their own app icon on their home screen, they’ll use it more than if they have to open a browser and remember the URL.
What holds Mighty Networks back is the learning curve. Setting it up takes time. The interface can feel dense. And pricing has climbed over the years.
My honest take: Mighty Networks is a solid pick for established creators who want a proper branded platform. For someone just starting out, it might be more than you need right now.
Circle
Circle is where things start to get interesting for serious community builders.
It’s a dedicated platform built purely for communities. You can create spaces, post discussions, run courses, host events, and charge members — all from one place. It looks clean. It’s designed to feel more like a website than a chat app.
The downside: it costs money to run. And while it looks great on desktop, the mobile experience hasn’t always been its strongest point, though it’s improved.
My honest take: Circle is excellent if you’re building a paid community or course-based product. If you want something that feels premium and lets you actually own your member experience, it’s hard to beat at the mid-market level.
Skool
Skool is the new one everyone in the online education and creator space is talking about. It was co-founded by Alex Hormozi, which is part of why it got so much attention so fast.
The design is simple. You get a community feed, a classroom section for courses, a calendar, and a gamification system with points and levels. That last part sounds gimmicky, but it actually drives engagement in a noticeable way.
What I like about Skool: it forces simplicity. You can’t build a complicated multi-channel disaster the way you can on Discord. The structure keeps things focused. For course creators especially, having the course content and the community in the same tab is genuinely useful.
What I’m not sold on: Skool is still fairly young. The feature set is limited compared to Circle. And the pricing puts some smaller creators off.
My honest take: Skool is worth watching. For course-first communities, it might already be the best option.
My Personal Failure (And What I Learned From It)
Okay. Here it is.
A couple of years ago, I built a Discord server for content writers interested in AI tools. This was before every newsletter on the internet was about AI. I thought I was early. I was excited. I set up channels for everything — tutorials, job opportunities, tool recommendations, general chat, introductions, resources, and writing feedback.
Twelve channels. For a community of zero people.
I invited everyone I knew. About forty people joined in the first week. And for about three days, it was alive. People posted. Conversations happened. I was thrilled.
Then it went quiet.
I kept posting. I started discussions. I shared links. I asked questions. I was basically talking to myself in an increasingly elaborate room I had built and decorated for guests who had already left.
The problem wasn’t the app. Discord was fine. The problem was that I had confused a platform with a community. I had built the structure but not the culture. I had a server but not a reason for people to show up every day. There was no shared goal, no ritual, no moment where members genuinely needed each other.
I eventually archived the server. It still sits there. Forty members; last message from me, six months old.
The lesson: the best community app in the world cannot compensate for an unclear purpose. Before you pick a platform, get very clear on why people would come back tomorrow. That answer has nothing to do with which app you choose.
So Which One Actually Wins?
Fine. You want a verdict. Here’s mine.
For most creators, educators, and small business owners building a community around a specific topic or offer: Circle or Skool, depending on whether your primary thing is community-first or course-first.
If you want depth, flexibility, and a polished member experience: Circle.
If you want simplicity, built-in gamification, and a platform that makes courses feel native: Skool.
For real-time, tight-knit groups who interact daily: Discord. Accept the chaos. Use it for what it’s good at.
For professional networks around niche topics: a public Slack community still works, but know the costs going in.
For participating in existing communities around broad topics: Reddit is still king, and it’s not close.
For building on Facebook: I’d honestly rather not. But if your audience lives there and you can accept the limitations, it works.
The honest truth is there’s no single winner for everyone. The best app is the one that matches how your specific community wants to behave. Some communities are chatty and real-time. Others are more like a library — people come in, find what they need, and leave. Those two communities need different apps.
What I’d tell my past self: spend less time picking the app and more time asking what you want people to do inside it. Do you want them to ask questions and get answers? Share work and get feedback? Meet each other and collaborate? Watch you teach something and discuss it?
Once you know that, the right platform becomes much more obvious.
There’s one more thing worth saying. Don’t let the fear of picking the wrong platform stop you from starting. I’ve watched people spend three months comparing apps before building anything. By the time they launched, they were exhausted before a single member ever showed up.
Start somewhere reasonable. You can always migrate later. Communities move platforms all the time. What they can’t do is recover from a host who burnt out before the community ever found its rhythm. Your energy matters more than your platform choice. I genuinely believe that.
Final Thought
Online community apps are just tools. Powerful ones, yes. But the community is the people, not the software.
I’ve seen terrible communities on great platforms and genuinely wonderful communities running on a basic Facebook group from 2014. The tool matters less than you think. The culture matters more than almost anything.
Pick something simple. Start small. Show up consistently. Give people a reason to come back.
That’s the whole thing, really.
And if it goes quiet for a while — that’s okay too. Most communities go through quiet patches. The ones that survive are the ones where at least one person refuses to stop showing up.
Don’t be the person who archives the server after three months.
I’m still working on that one myself.
Have you tried any of these community apps? Drop your experience below – I actually read comments.
