booking system for a fitness center

A fitness center with a varied weekly schedule of group classes—from aerobics and spinning to circuit training and weekend workshops—is far more demanding to run than simply opening the doors and waiting for customers. Each class has its own capacity, time slot, instructor, and group of regular and new participants. Keeping track of everything manually is, at best, unnecessary work and, at worst, a source of avoidable mistakes and customer dissatisfaction. A booking system eliminates this confusion and transforms the schedule from a paper noticeboard into a dynamic tool that works for you even while you rest.

What needs to be managed ...
  • Managing a weekly schedule with different types of classes, instructors, and capacities.
  • Allowing clients to book and cancel individual classes throughout the week.
  • Managing waitlists for popular and fully booked classes.
  • Selling and managing passes, discounted admissions, or class packages.
  • Organizing one-off weekend workshops.
  • Communicating with clients—reminders before classes and information about schedule changes.

Group classes have one key characteristic—demand comes in waves, while capacity is always limited. Popular classes fill up quickly, and without a clear system overview, you simply do not know whom to accept and whom to turn away. An online booking system solves this problem naturally—each class in the schedule has a maximum capacity, customers book online themselves whenever it suits them, and you always have an up-to-date overview without having to answer phone calls or respond to messages. If more people sign up than there are spots available, the system can automatically manage a waitlist—and as soon as a spot becomes available, it immediately notifies them. Operations like these are no longer dependent on a single receptionist and instead begin to function as a smart, self-sufficient system.

A properly configured booking system also adds value by improving the economics of running a fitness center. Customers who prepay for an activity or purchase a pass tend to visit the center more regularly—their motivation to attend is strengthened by having paid for the classes in advance. Selling passes and credits provides the business with a predictable stream of revenue even before the client physically arrives. Weekend workshops or special program events can then easily be offered as one-off events with their own pricing and separate registration. A customer database with booking history also creates opportunities for more targeted communication—you know who attends yoga, who has stopped booking spinning classes, and who has yet to use their purchased credit. Such data forms the basis for informed decisions about the schedule, the services offered, and marketing as a whole.

Key features for a fitness center

Running a fitness center with a weekly schedule and a diverse range of activities requires a combination of tools for managing recurring and one-off classes, selling passes, controlling capacity, and communicating with clients. Below are the features that together cover the entire operational cycle—from the customer's initial registration and payment to the class itself and subsequent feedback.

Punch cards and customer credit

Customers who use your services repeatedly and regularly will welcome an efficient way to pay for them, including a discount. Whether it's a punch card for a certain number of visits or a set value, or top-up credit that customers draw down, this feature has you covered.

Punch cards and customer credit

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Offer loyal customers a more convenient way to pay for repeat visits – a punch card for a set number of visits or value, or top-up customer credit.

The reenio system offers several ways to let customers pay for reservations based on a previously prepaid value, instead of individual direct payments.

Punch cards work as a special type of coupon with a set number of visits or a gradually drawn-down amount (credit-based punch card). Applying the punch card code adjusts the reservation price accordingly, either by subtracting a defined amount or applying a discount of up to 100%. These codes don't have to be tied to a specific registered customer account, so they can be used easily and flexibly. They can also be restricted to specific events, so you clearly define which offered activities a punch card can be used for and which not.

Customer credit, on the other hand, works as a virtual wallet linked to a registered and logged-in customer account. A customer can top up their credit themselves online via a payment gateway (potentially with a bonus), or you can top it up manually in the administration, for example when paying in cash at reception. A credit wallet can in principle also have an expiration set.

Both solutions can be used effectively together with online payments, where the whole process of purchasing punch cards or credit can be fully automated. There are many possibilities, and it always depends on your specific settings and how you think through how and under what rules these customer-loyalty tools will work for your particular type of business.

Event: One single event

The easiest event type to set up and use, offering a booking for a specific, fixed time from and to, including an optional capacity limit. A customer always books the entire listed event.

Event: One single event

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Offer customers a reservation for a fixed time slot with a limited capacity – ideal wherever more than one person needs to be able to attend an event, but not more than you're able to serve.

With the Full single event type, a customer always books the whole event as set, i.e. a fixed time slot from – to, with no option to choose a custom time. This is typically an event with a higher capacity, taking place at a fixed time – suitable for sports events and lessons, seminars, lectures, concerts, exhibition openings, one-off courses, workshops, or tours.

For this type you can also enable a so-called waiting list, where a customer can still express interest in booking even after all available capacity has been used up. This event type also supports creating recurring reservations and supports online events.

Waiting list

If there's high demand for an event, it can be useful to let a customer "join" as a waiting-list candidate. That customer then waits until they receive information (e-mail, SMS) that their turn has come and their reservation has become a full reservation.

Don't lose customers just because an event is already fully booked – let them sign up for a waiting list and automatically notify them as soon as a place opens up for them because an earlier customer cancels their reservation.

The waiting list feature lets customers express interest in a reservation even when an event no longer has free capacity. A reservation doesn't get created for them at that point yet – the system simply records their interest, including their details. As soon as the corresponding capacity becomes available (e.g. another customer cancels their reservation), the system automatically picks a waiting-list candidate from the queue based on order and capacity and creates a standard reservation for them with everything that entails – sending a confirmation, a possible payment request, cancellation rules, and so on. If a candidate on the waiting list doesn't get a spot, the system no longer notifies them any further.

This feature is only available for the Full single event type and must first be enabled and configured for the specific event.

Online payments

Being able to pay for a reserved service through an online payment gateway is now the standard. Customers today are used to paying quickly and securely in online shops and expect the same comfort when booking or ordering services online.

Online payments

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Let customers pay for their reservation or tickets online right away, before the service is provided – faster, more convenient, and with the certainty that the reservation will be paid, and therefore used.

The reenio system allows you to require prepayment as part of the booking process, so a customer's reservation only becomes valid once paid. You decide yourself whether online payment is mandatory, or whether you leave it up to the customer to pay on site. With mandatory payment, you can set a deadline by which a new reservation must be paid, otherwise it is automatically cancelled and the slot is released for another customer.

For online payments you can choose from several supported payment gateways. The reservation system then handles the technical connection and communication with the chosen gateway, but all business and formal matters are handled directly with the payment gateway provider – you keep the money you receive under your own control, in your own merchant account.

  • GoPay

    An online payment gateway offering a wide range of payment methods, from card payments to fast bank transfers, Apple Pay, or Google Pay.

  • Comgate

    Another Czech payment gateway that also operates in other European countries. Its payment methods vary and cover common needs.

  • Stripe

    A global payment gateway that is becoming increasingly popular. It offers fast integration and approval, so you can start accepting payments within minutes.

  • Bank transfer

    A special type of payment method where the reservation system itself can generate a QR code for payment and then automatically verify and match received payments.

After a successful payment, the system automatically marks the reservation as paid and generates and sends the customer a payment document. The reenio system offers a wide range of options and features for working with payments, including exports, refunds, and more. However, it should be noted that reenio itself is not an accounting system.

Cash register and payment terminal

When online payments aren't enough and you need to accept payments on the spot, the cash register feature comes in handy – issuing and printing a receipt, processing a card payment through a terminal, and so on.

Cash register and payment terminal

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Handle payments received in person on the spot too – mark a reservation as paid, generate an accounting document, and print it directly on a POS printer, or accept a card payment right away through a connected payment terminal.

The cash register feature lets you mark a reservation as paid directly in the administration, even when the payment took place outside the online payment gateway, for example in cash at reception. The system can then issue a corresponding accounting document for the payment received this way, respecting the configured document numbering, and so on.

For card payments, the system can also be connected to a payment terminal (SumUp, GP Tom, Comgate), which means a payment request can be sent to the terminal directly with a button in the reservation detail, and after a successful payment the system automatically marks the reservation as paid, creates the payment and document, and sends the customer a confirmation by e-mail, just like with payment via the online gateway.

User roles

Running a reservation system usually isn't a "one man show", so access and administration need to be available to multiple users. User roles serve exactly this purpose, allowing work in the administration with different levels of permissions.

Split the work in the administration across your whole team while staying in control of who can see, edit, and configure what – from full administrator access down to simply viewing reservations.

Any number of users, each under their own account, can have access to the reenio reservation system's administration. The system offers several user roles which, combined with specific permissions, clearly define what activities a given user is allowed to carry out.

  • Administrator

    Full access to all data and settings.

  • Employee

    A flexible role typically for users who manage reservations, events, and communicate with customers, and so on.

  • Receptionist

    A role designed for quickly and efficiently working with existing reservations, creating them, and checking them in.

  • Read-only

    A supplementary role intended purely for access to information, typically as a safe way to view data.

Thanks to user roles and permissions, working with reservations can be entrusted to other people without them needing access to the reservation page settings or other system parameters – an employee, for example, can process reservations but can't change the system's configuration or access the record of online payments. In specific cases, you can also set a restriction to a specific group of reservations based on a resource (e.g. only a particular branch or service).

Logging in can be secured with two-factor authentication, or password entry can be replaced with modern passkeys – verification by fingerprint, face recognition, or the device's own screen lock.

Dynamic pricing

Conditional prices, price variants, discount codes, and so on – this is all part of the extensive options for how the price of a reservation is calculated. Combined with online payment, it's a significant business and marketing tool.

Dynamic pricing

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Set prices for customers exactly to match your offering – different customer categories, discounts for longer bookings or bookings made well in advance, discount coupons, and any combination of all of these.

The price of a reservation in the reenio system doesn't have to be just a single fixed number – the system provides tools to price your offering intelligently and precisely, in line with how your business works. You can set different pricing categories, for example admission for an individual or a family, which are then automatically factored into the reservation based on the customer's choice.

On top of that, you can tailor the price to the specific circumstances of the reservation – for example, giving a discount to customers who book well in advance, or setting a different rate for a longer stay or rental. Thanks to a custom booking form, you can then easily offer add-on services or a discount for a selected group of customers.

For marketing campaigns and controlled access to selected events, discount coupons are useful, with their own settings for validity and number of uses – whether it's a one-off promotion, a loyalty discount, or a closed group for whom you only open up an event when the corresponding code is used.

The power of this pricing approach lies in the fact that all these tools can be combined and used together as needed. The final price always reflects exactly how you want to offer your services and what the customer themselves chooses.

Customer database

An overview of your customers, their details, and history is key to any business. The customer database not only records this data but also provides tools for communication, data export, and meeting GDPR requirements.

Customer database

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Keep a clear customer database with a reservation history and a whole range of related tools. The reenio system automatically builds the customer database based on reservations made or direct registration. A registered customer gains the ability to log in and manage their reservations directly within the reservation page. If customer credit is used, they can see their balance within their account and top it up online.

Depending on your settings, a reservation can also be allowed without registration, simply by entering an e-mail address or phone number, which is especially suitable where you don't expect one specific customer to use the reservation system regularly and often.

A well-maintained, extensive customer database is an important marketing tool. The system offers the option of bulk sending e-mail or SMS messages, which is useful for reaching customers with a new offer, a discount campaign, but also operational information or as part of crisis management.

The customer database naturally contains personal data, which today requires a certain approach to how it's handled and protected. The reservation system allows you to set up automatic deletion of personal data after a chosen period, and also keeps track of customer requests to have their data deleted. This makes it easier to meet GDPR requirements in line with the rules defined for your particular business.

If you need to import a customer database from another system or a manually maintained spreadsheet, that's no problem – an existing customer list can be easily and smartly imported into the reenio system.

Custom booking forms

When the standard details collected from a customer during booking aren't enough, the solution is simple. Booking forms can be extended with custom fields that a customer may or must fill in while booking.

Custom booking forms

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Find out everything you need about customers right at the time of booking – extend the standard form with your own fields and tailor the form to a specific event and type of service.

Custom booking forms let you extend the standard reservation form (name, e-mail, phone) with any additional fields your business needs – from checkboxes, through selecting from options, entering text, all the way to uploading a file (e.g. a photo of the customer or a scanned confirmation). It's also possible to collect specialized data, where the system takes care of validating the correct format.

Individual custom fields can be required, or only shown based on the reserved capacity or a previously selected value. A special group is formed by form fields that affect the reservation price – which makes it easy to handle, for example, a surcharge for renting equipment, a discount for members, or a price adjustment for an above-standard scope of service.

A form can be assigned to a single event, or set globally so it automatically applies to all events on the reservation page. Working with custom forms is therefore very simple while also offering very broad possibilities for use.

Data entered in a custom booking form is saved as part of the specific reservation and can also be included in an export to Excel, and worked with further as needed.

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Are you wondering if an online reservation system is right for you? Check out the FREQUENT QUESTIONS or the DOCUMENTATION pages and try out the reenio system.