WhizzWorks

Mobile apps

A mobile app for your fitness studio

Booking, passes, and check-in your members actually like to use, in an app that carries your name instead of someone else's, and that you fully own.

Higher retention through habit and easy rebooking
Fewer no-shows from waitlists and timely reminders
Your brand on the phone, not a vendor's
One schedule your staff and members both trust

A fitness studio runs on a simple loop. A member books a class, shows up, has a good hour, and books the next one before they leave. Everything good about your business compounds inside that loop, and everything that hurts it comes from friction: a booking flow that takes too many taps, a pass that quietly expired, a waitlist nobody got pulled off of, a schedule change that reached half the room. A mobile app is how you make that loop easy enough that members stay in it without thinking.

We build studio apps that do the unglamorous work well first. Booking, passes, check-in, and reminders are the things members touch every week, and they are the things that decide whether your app gets opened or deleted.

Be honest about what you already have

Most studios already run a platform like Mindbody or one of its competitors, and those tools are good at what they do. They handle class schedules, payments, passes, and reporting out of the box, and they are a reasonable choice for a studio that wants to focus on teaching and not on software.

So the first honest question is not "what should our app do," it is "do you need your own app at all." For a lot of studios, the answer is no, and we will tell you that rather than sell you something. A custom build starts to make sense in three situations:

  • You want your own branded experience. Members open an app with your name, your look, and your sequence of classes, not a generic interface shared with a thousand other gyms.
  • The platform fees stop making sense at your size. Per-member or per-location pricing is cheap when you are small and expensive when you are not. At some point a build you own costs less than renting the same features forever.
  • You want something the generic tool cannot give you. A streak that actually motivates your members, a check-in flow tuned to your front desk, a class format the off-the-shelf model does not support.

If none of those is true for you, keep the tool that works. We would rather you spend nothing than spend it on an app you did not need.

Booking and waitlists, done properly

Booking is the feature your members use most, so it has to be the feature that frustrates them least. A spot in a class should be two taps away, your most loyal members should be able to rebook their usual slot instantly, and a full class should offer a waitlist instead of a dead end.

Waitlists are where studios quietly lose money. A class shows full, three people cancel the morning of, and those seats go empty because nobody was told. We build the waitlist to pull the next member in automatically when a spot opens, notify them, and give them a clear window to confirm. Full classes fill back up on their own, and no-shows cost you less.

Passes and memberships people can see

A member who does not know how many classes they have left is a member who books less. We put passes, packs, and plan status where members can see them, count down what is remaining, and prompt a renewal before it runs out rather than after. The result is fewer awkward conversations at the desk and fewer lapses that turn into cancellations.

This connects to the systems you already use to take payment and track membership. The app is the front door. It does not require you to rip out your billing on day one.

Fast check-in, because the door is a bottleneck

The minute before a class starts is the worst time for a queue. Check-in should be a single tap from the member, or a quick code your front desk scans, with the roster updating live so your instructor knows who is in the room. No clipboard, no manual lookup, no line forming while the class is trying to begin.

Retention is the metric that matters

For a studio, the number that decides whether you grow is not how many people sign up, it is how many stay. New members are expensive to find. The ones you already have are the business.

An app does not create loyalty by itself. Your coaches and your community do that. What an app can do is remove the small frictions that lose members at the margin, and reinforce the habit that keeps them. Streaks and milestones give a member a reason to come back this week. Push notifications tell them the moment a new class opens or a schedule shifts, instead of letting them find out by showing up to a locked door. Easy rebooking means the next session is always one tap away. None of that replaces good teaching. All of it protects the members good teaching earned.

Built to last, and built to own

We build the app on a small, documented codebase that belongs to you. The source is yours, the data is yours, and there is no per-member tax that grows every time you add a location or a member. We instrument the app so you can see how it is actually used, which classes fill, where members drop off, what drives a renewal, so the next round of work follows evidence instead of guesswork. If you ever bring the work in-house or move to another team, everything they need comes with it.

How we work

We are a principal-led practice, which means the person who scopes your app is the person accountable for shipping it. We build a working, clickable prototype first, before you pay for the full build, so you can hold the thing and feel the booking flow before you commit a budget. We connect to the booking and payment systems you already run rather than forcing a migration you did not ask for. Then we price the real build as a fixed scope and leave you with software you own and can inspect.

If a custom app is the right tool for your studio, we will build you one your members actually open. If your current platform is serving you well, we will tell you that too, and save you the spend.

What you get
Class booking and waitlistsMembers book a spot in seconds, join a waitlist when a class is full, and get pulled in automatically when someone cancels. Fewer empty mats, fewer no-shows.
Memberships and passesTrack unlimited plans, class packs, and drop-in passes in one place. Members see what they have left, and renewals happen before anyone hits zero.
Fast check-inA tap at the door, or a code your front desk scans. No clipboard, no app-switching, no line forming while the next class is trying to start.
Built to ownA small, documented codebase that is yours, with full source in your hands. No per-member platform tax that grows as you do, and no lock-in.
Questions, answered
We already use something like Mindbody. Why build our own app?
Often you should not, and we will say so plainly. The off-the-shelf platforms handle booking, payments, and passes well, and for many studios that is the right call. A custom app earns its cost when you want your own branded experience instead of a vendor's, when per-member platform fees start to outweigh a build as you scale, or when you want a member experience the generic tools simply cannot give you. If none of those is true for you yet, keep what works.
Do we have to throw out our current booking and payment system?
No. We can build your app on top of what you already run, connecting to your existing booking, schedule, and payment systems through their integrations. Your members get a better front door without your back office changing overnight. Where it makes sense to move logic into the app over time, we do it in steps you can validate.
Does retention really come down to an app?
The app is not the reason people stay, your coaching and community are. But friction quietly loses members: a clunky booking flow, a forgotten pass, a class they meant to rebook and never did. A good app removes that friction and keeps the next session one tap away, which is where retention is won or lost.
iOS, Android, or both?
Both, from one shared codebase, so you are not paying twice or maintaining two divergent products. If budget is tight at the start, we can launch a fast mobile web version first and add native apps once members are using it and the value is proven.