Industry Showcase · Fitness / Gyms

Launch Your Gym App in 4–6 Weeks

Stop losing members to spreadsheets and clunky booking systems. We build branded gym apps that track memberships, boost retention, and increase revenue.

App showcase 1

Missed Renewals

Without automated reminders, members churn quietly.

Empty Classes

Manual booking means no-shows and low attendance.

No Tracking

Members leave when they can’t see progress or get trainer guidance.

What’s in the Starter Kit

Memberships & Subscriptions

Recurring plans, renewals, and easy management.

Class Scheduling

Create classes (in-gym & virtual), set capacity, enable instant booking.

Attendance

Punch in/out and view clean history logs.

Workout Tools

Track progress, follow plans, and access trainer demos.

Push Notifications

Reminders, promotions, and renewal nudges.

Admin Dashboard

Simple portal for members, schedules, payments, and analytics.

Pick a Ready-to-Ship Module

Start with one or two modules now. Add more as your gym grows.

Gym Management Hub (Core)

from $2,000

The control center for your gym—memberships, renewals, payments, and insights in one place.

Spin up plans, automate renewals with card-on-file, send receipts, and see what’s working. This is the foundation every gym needs. All other modules plug into this hub.

Select gender
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Timeline

2–3 weeks

Stack

React Native • Next.js (light web admin optional) • Firebase • Stripe • Push

What’s included

  • Membership plans & auto-renewals
  • Receipts & invoices
  • Member profiles & notes
  • Revenue & retention snapshots
  • Renewal & failed-payment reminders

How we build it

  1. Kickoff
  2. Configure plans
  3. Payments & renewals
  4. QA
  5. Handover

Attendance (Punch In / Out)

from $1,000

Fast, reliable attendance—know who showed up and when.

Front desk or self-service punch in/out in seconds. Clean, exportable logs show busy hours, inactive members, and visit streaks—so you can act before churn happens.

Punch in — variant 1
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Timeline

1–2 weeks

Stack

React Native • Firestore • Secure local storage

What’s included

  • Punch in/out flows (member & front-desk)
  • Real-time attendance feed
  • History with exports
  • Inactive member flags

How we build it

  1. Kickoff
  2. Flows
  3. Audit trail
  4. Beta
  5. Launch

Gym Classes & Booking (In-Gym + Virtual)

$3,000

Run live in-gym sessions, stream online classes, and sell on-demand recordings.

Members discover classes, book instantly, and join waitlists. Trainers can stream live sessions, upload recorded lessons, and manage rosters from their phone. Offer hybrid memberships—attend in person or remotely—with automated reminders to boost show-ups and renewals.

Onboarding
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Timeline

2–4 weeks

Stack

React Native • Firebase • Stripe (optional) • Push

What’s included

  • In-gym & virtual classes
  • Instant booking & waitlists
  • Trainer roster & capacity limits
  • Auto reminders & calendar add
  • On-demand recordings library

How we build it

  1. Kickoff
  2. Design
  3. Weekly demos
  4. Internal testing
  5. Store handover

Workout Companion

from $3,000

Guided workouts with demos, cues, and progression—always in your pocket.

Trainers build structured sessions with step-by-step guidance, images/video demos, and coaching tips. Members follow plans between classes, keeping them engaged and progressing—which means better retention.

Companion signup
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Timeline

2–3 weeks

Stack

React Native • Firebase Storage • Push

What’s included

  • Exercise library (image/video)
  • Trainer tips & cues
  • Bookmarks & favourites
  • Progression & reminders

How we build it

  1. Kickoff
  2. Content import
  3. Build
  4. Beta test
  5. Launch

Workout Tracker

from $3,000

Make progress visible—logging, PRs, and charts that keep members coming.

Members log reps/sets in seconds, track PRs, and see progress charts over time. When results are visible, renewals follow.

Tracker overview
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Timeline

2–4 weeks

Stack

React Native • Firebase • Local sync • Push

What’s included

  • Fast logging
  • PR tracking
  • History & streaks
  • Charts & exports
  • Reminders

How we build it

  1. Kickoff
  2. Design
  3. Build
  4. Beta test
  5. Launch

What Our Clients Say

Real reviews from happy clients who trusted JetBuildStudio to build their app ideas.

John S.

Startup Founder

Dave M.

Marketing Consultant

Why JetBuild Studio

  • • 60+ MVPs shipped across fitness, SaaS, and marketplaces
  • • React / React Native / MERN / Bubble — we pick the right stack
  • • 4–8 week delivery with weekly demos
  • • Transparent fixed-price proposals

We only take 3 new gym projects per month.

Secure your slot now — book a call to lock in your build timeline.

Douglas Maringa

Hi, I’m Douglas Maringa

Founder of JetBuild Studio. I help gyms ship branded mobile apps that actually move the needle—fewer no-shows, higher renewals, and clearer revenue. I’ve delivered 60+ MVPs across React Native, React, and Bubble with weekly demos, fixed pricing, and fast iterations.