Updated October 2026/Gym & Fitness Websites

Top 9 Fitness & Gym app developers in London

Planning a fitness & gym app in London? Below are 9 development teams worth shortlisting, ordered by the fitness & gym work and shipped apps they can point to. Agency rates in London typically run £600-£1,500/day, and a mVP app (cross-platform) usually costs £10,000 – £40,000 on the local market. Most fitness & gym apps launch cross-platform first; the guide below covers platforms, costs and what to ask before you sign.

How this list works. Agencies are ordered by the fitness & gym evidence in their public profiles: stated specialisms, platforms and named sector work (several are primarily web studios, so ask for shipped apps), so the London order changes by industry. Tecklogist ranks first. This list is published by Tecklogist; no other agency pays for placement.

The ranking

9 agencies · Fitness & Gym · London

01

Best overall · Fitness & Gym

Tecklogist

#1 Ranked 2026

Ranked #1 for fitness & gym app development in London: iOS and Android apps scoped at a fixed price, with store submission handled.

Tecklogist builds fitness & gym apps for London businesses in React Native and native Swift/Kotlin, from booking and payments to customer accounts and push notifications. Fixed price and timeline agreed up front, App Store and Google Play submission handled, source code handed over at launch.

  • Fixed price & timeline
  • App Store & Play submission
  • Reply within 24h
  • You own the code
  • 10-49 staff
Get a free fitness & gym quote[email protected]
  1. 02

    Propeller Digital

    propeller.co.uk

    London PR and digital agency offering integrated web, content, and comms.

    Fitness & Gym fit: Relevant fitness & gym signals in its public profile: wordpress. Ask for live fitness & gym app examples before shortlisting.

    Web DevelopmentContent StrategyPRWordPress

    Best for B2B technology companies wanting integrated PR, content, and web from one team

  2. 03

    Rawnet

    rawnet.com

    London digital agency delivering strategy, web builds, and brand campaigns since 2004.

    Fitness & Gym fit: Relevant fitness & gym signals in its public profile: wordpress, with. Ask for live fitness & gym app examples before shortlisting.

    Brand StrategyWeb DevelopmentCMSDigital Campaigns

    Best for Mid-market UK brands wanting combined brand strategy and CMS web delivery

  3. 04

    Cyber-Duck

    cyber-duck.co.uk

    UX-led digital product agency with a 20-year London track record.

    Fitness & Gym fit: Relevant fitness & gym signals in its public profile: with. Ask for live fitness & gym app examples before shortlisting.

    UX ResearchWeb ApplicationsReactDigital Strategy

    Best for Public sector and regulated-industry clients needing research-led UX and web applications

  4. 05

    Manifesto

    manifesto.co.uk

    Independent London digital agency focused on design-led web products.

    Fitness & Gym fit: Relevant fitness & gym signals in its public profile: with. Ask for live fitness & gym app examples before shortlisting.

    Web DesignDrupalReactDigital Experience

    Best for Charities, cultural organisations, and purpose-led brands prioritising accessibility

  5. 06

    DEPT

    dept.global

    Global digital product and technology agency with major London operations.

    Fitness & Gym fit: Relevant fitness & gym signals in its public profile: with. Ask for live fitness & gym app examples before shortlisting.

    Digital ProductsCommerceDataTechnology

    Best for Global enterprise brands needing composable commerce or large-scale digital products

  6. 07

    Inviqa

    inviqa.com

    London engineering-led agency for complex Symfony, Drupal, and e-commerce platforms.

    Fitness & Gym fit: Relevant fitness & gym signals in its public profile: with. Ask for live fitness & gym app examples before shortlisting.

    SymfonyDrupalMagentoPlatform Engineering

    Best for UK retailers and B2B firms needing complex Symfony, Drupal, or Magento engineering

  7. 08

    Stink Studios

    stinkstudios.com

    London creative technology studio known for experimental brand experiences.

    Fitness & Gym fit: Relevant fitness & gym signals in its public profile: studio. Ask for live fitness & gym app examples before shortlisting.

    Creative TechnologyWebGLBrand CampaignsMotion Design

    Best for Premium consumer brands commissioning immersive, award-level campaign experiences

  8. 09

    Shoreditch Design Studio

    shoreditchdesign.com

    Shoreditch Design - Creative Agency

    Fitness & Gym fit: Generalist studio with no published fitness & gym specialism. Worth considering for broader builds; ask for comparable fitness & gym app work first.

Costs & all sectorsApp developers in LondonNeed a website too?Fitness & Gym web developers in London

How to choose a fitness & gym app developer

The checks that separate genuine fitness & gym specialists Before you sign with any fitness & gym app developer in London, check these points in the first call. Good teams answer them with live examples rather than promises.

  1. 01

    Live fitness & gym apps you can download

    Ask for App Store and Google Play links to apps the team shipped, then read the reviews and check when each was last updated.

  2. 02

    Experience with fitness & gym features

    Bookings, payments, accounts or records work in fitness & gym apps has edge cases. Ask how they handled them before.

  3. 03

    Ownership from day one

    The code repository, Apple and Google developer accounts and signing keys should be registered to your company, not the agency.

  4. 04

    Backend and admin panel included

    Most fitness & gym apps need a dashboard for your team. Make sure it is in the quote, not a later surprise.

  5. 05

    A plan for after launch

    IOS and Android updates break apps every year. Agree a maintenance plan or clean handover before you sign with any London team.

Native, React Native, Flutter or PWA?

React Native

Choose it for: One codebase for iOS and Android, a TypeScript team, and logic shared with your website.

Flutter

Choose it for: Identical UI on both platforms, rich animation, or plans to reach desktop later.

Native (Swift / Kotlin)

Choose it for: Deep device features: Bluetooth hardware, background location, AR, HealthKit or demanding real-time performance.

Progressive web app

Choose it for: Something installable fast on a small budget, where App Store discovery does not matter.

What a fitness & gym app costs in London

Indicative ranges as of October 2026. Features, backend and integrations move the price; app store fees are extra.

MVP app (cross-platform)

London market£10,000 – £40,000

Tecklogistfrom £1,499

4–8 weeks

Full app (iOS + Android)

London market£25,000 – £80,000

Tecklogistfrom £2,999

6–16 weeks

Native iOS or Android

London market£35,000 – £150,000

Tecklogistfrom £4,999

8–24 weeks

How we build your fitness & gym app

  1. 01

    Scope & flows

    The core user journeys for your fitness & gym app, the backend it needs and what can wait for version two.

  2. 02

    Clickable prototype

    Tap through the app on your own phone before any code is written, and test it with real customers.

  3. 03

    Build & integrate

    React Native or native code, your backend and admin panel, payments, push notifications and analytics.

  4. 04

    Store launch & care

    App Store and Google Play submission handled, then monitoring, OS updates and fixes for your London users.

Building fitness & gym apps for London

London businesses commissioning apps typically pay agency rates of £600-£1,500/day. For fitness & gym projects, the agencies worth shortlisting are the ones that can show live fitness & gym work, not just a generic portfolio.

London's tech sector employs over 300,000 people and contributes more than GBP 56 billion annually to the UK economy. The city hosts more venture-backed startups than any European city, creating constant demand for high-performance web infrastructure, GDPR-compliant architecture, and scalable e-commerce builds.

12,000+
Digital agencies in Greater London
£56B
Annual tech sector contribution to UK GDP
300k+
Tech workers employed in London

Recent work from Tecklogist

wdsfinance.com
Accountancy firm website by Tecklogist

Finance · Web design

Accountancy firm website

sadiqbrothers.pk
5,000-product online store by Tecklogist

Retail · E-commerce

5,000-product online store

clinic website
Medical practice website by Tecklogist

Healthcare · Web design

Medical practice website

Fitness & Gym app development in London: FAQs

How much does a fitness & gym app cost in London?+

In London, a mVP app (cross-platform) typically costs £10,000 – £40,000, while a native iOS or Android runs £35,000 – £150,000. Agency day rates of £600-£1,500/day are the main driver, followed by integrations and how much custom functionality you need. Tecklogist quotes fitness & gym projects from from £1,499 at a fixed price.

How long does it take to build a fitness & gym app?+

A mVP app (cross-platform) usually takes 4–8 weeks; a native iOS or Android takes 8–24 weeks. Delays almost always come from late content, unclear scope or third-party integrations, so agree those before work starts.

Should a fitness & gym app be native or cross-platform?+

Most fitness & gym apps are best built cross-platform in React Native or Flutter, which covers iPhone and Android from one codebase. Native Swift and Kotlin are worth the extra cost when the app depends heavily on device hardware or real-time performance.

What should I ask a fitness & gym app developer in London before hiring?+

Ask about free trial or pass CTA as the primary hero action; class timetable embedded directly in the site; real member photography (not stock). Then ask for two or three live fitness & gym apps they built, who will actually work on yours, and what support looks like after launch.

Why is Tecklogist ranked first on this list?+

This list is published by Tecklogist, and we rank ourselves first because fitness & gym apps are core work for us: fixed prices, fixed timelines and code you own. The other London agencies are ordered by the fitness & gym evidence in their public profiles, and none of them pay to appear.

Ready to build your fitness & gym project?

Send a short brief. We scope fitness & gym projects for London businesses at a fixed price and timeline, and reply within one working day.

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