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Fill the Gap · PILOT 2026

Personal training today.

We connect people who want to train with available personal trainers.

Join the pilot See how it works

01 · PROBLEM

Availability exists on both sides. What’s missing is a simple way to connect.

A free slot can open up suddenly. So can the urge to train. What’s missing today is a simple way to bring those two moments together.

I’m a trainer

A session gets cancelled or a slot suddenly opens up in your schedule? Show your availability to people looking for a workout.

I want to train

Got time to train today? Instead of messaging trainer after trainer to ask about availability, see who’s free.

02 · HOW IT WORKS

How does GapApp work?

From an open slot to a workout.

  1. 01

    Show your availability

    Choose the time, location and type of training.

  2. 02

    See who's available

    See available time slots at a glance and choose who you want to train with.

  3. 03

    Meet for your training session

    No endless searching or back and forth messages - just a few simple steps.

  4. 04

    GapApp brings both sides together

    An open slot and the desire to train meet in one place.

A trainer has an open slot. You've got time. GapApp brings you together.

03 · FOR TRAINERS

Got an open slot? Turn it into a training session.

Got a free hour in your schedule? Show it to people looking for a trainer right now.

  • 01
    Show your availabilityYAdd your open time, location and type of training.
  • 02
    Get discoveredPeople looking to train can see when you're available — without messaging back and forth about your schedule.
  • 03
    Fewer empty slots. More sessions.Increase the chance that an open slot turns into a booking.
Join as a trainer

04 · FOR PEOPLE WHO TRAIN

Got time today? Find a trainer.

Got a free hour? Skip the profile-hopping and waiting for replies. See who's available today and choose the trainer that works for you.

  • 01
    Find a trainer for todaySee who has an open slot right now.
  • 02
    Less searching. More training.No messaging trainer after trainer just to ask about availability.
  • 03
    Train when it works for youTraining fits your day - not the other way around..
  • 04
    Choose what works for youCheck the trainer, time and location in one place.
Join and find a trainer

05 · VIDEO

See how it works

Someone has an open slot. Someone wants to train. See how GapApp brings those two moments together.

The video is in Polish for now. An English version is on the way.

Transcript (Polish)

Odwołany trening w ostatniej chwili? Pusta godzina w grafiku to utracony przychód.

Chcesz trenować dzisiaj, ale nie możesz planować z wyprzedzeniem?

Nie czekaj na termin za kilka dni. Trener ma wolną godzinę.

Ktoś właśnie chce trenować. A jednak wciąż się mijają.

GapApp sprawia, że te dwa momenty wreszcie się spotykają. Tu. Teraz. W czasie rzeczywistym. Wolny termin? Wrzuć go w kilku prostych krokach do GapApp. Ty decydujesz: kiedy, gdzie i za ile. Chcesz trenować teraz?

Widzisz treningi, które naprawdę są dostępne. Wybierasz: gdzie, kiedy i z kim. W dodatku w niższej cenie. GapApp pokazuje wolne treningi osobom gotowym skorzystać z nich tu i teraz. Widzisz. Wybierasz. Rezerwujesz.

Kilka chwil wcześniej była luka. Teraz jest trening.

GapApp to więcej niż wolne terminy. To społeczność trenerów i ludzi, którzy chcą być aktywni wtedy, kiedy naprawdę mogą. Więcej dostępnych treningów. Mniej „może innym razem”. Mniej wolnych godzin, więcej nowych klientów.

GapApp - Fill the Gap!

Dołącz do społeczności GapApp.

06 · MARKET

Two sides. One moment.

On one side, someone wants to train. On the other, a trainer has an open slot. GapApp is being built to bring them together.

83-98%

of those who work out highly value the key benefits of GapApp: today's workout, an attractive price, quick booking, and certified trainers.

73%

of coaches highly value the benefits of GapApp: more clients, a fuller schedule, and easier bookings and payments.

Survey · 5 minutes

Help us close the gap.

Three short surveys - for trainers, people who train, and gyms and clubs. The results decide what we build in the pilot.

I am a trainer(opens in a new tab)I want to train(opens in a new tab)I represent a gym or club(opens in a new tab)

07 · PILOT

Be part of GapApp from the very first session.

Join the pilot and get access to GapApp before the official launch.

  • Are you a trainer? Share your availability.
  • Want to train? Find a trainer today
How would you like to join GapApp?

The controller of your personal data is Łukasz Mocarski, contact: privacy@fillthegap.app. We process the data provided in this form to receive and manage your application, organize the pilot and contact you regarding the GapApp pilot. Providing your data is voluntary but necessary to process your application. Detailed information on the legal basis for processing, data retention periods, recipients of your data and your rights can be found in the [Privacy Policy]