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How to choose the tech stack for a fitness app?

tech stack for a fitness app Are you thinking about fitness app development? These apps have gained a lot of popularity and will continue to do so, especially after 2020. It might be a good idea to start a business in fitness, perhaps based on an app for mobile or supported by one.

Apps that track activity and wellness, as well as health, fitness, and workout apps, are available. These terms are used interchangeably because it’s hard to separate them into different branches. This is also what happens in this article.

You will find below some information about the fitness industry. We will then present to you possible options regarding the technology used in fitness apps. This will give you an idea of which option you should choose for your app!

What is a fitness application?

Fitness apps can be interpreted in different ways as new ideas are tested. Fitness apps and workout apps can include a variety of products.

  • Apps for health and fitness
  • Apps for wearable devices
  • Apps for mobile, tablet, and TV to help you with your home exercise (with video tutorials, training plans, and outdoor activities).
  • Apps for calorie and diet counting
  • Apps for tracking sleep and workouts (also with progress trackers).
  • Apps that allow you to contact your trainer using AI, VR, and AR
  • Apps that offer live classes
  • Health club apps.

Fitness App Market

You should do a thorough market analysis before you create a fitness application. The competition is fierce. These mobile apps include the features mentioned above and others. Do you want fitness app development? Make it stand out. Otherwise, your app will be lost in a sea of diet and nutrition app activity-tracking apps, and other apps.

Global fitness app users are growing rapidly. In 2019, there were 203.45 million users of fitness apps that were free, and by 2021 this number will have reached 359.53 users. The Fitness Apps segment revenue is expected to reach $16.60bn by 2022.

Popular fitness apps for 2023

In March 2023, Statista released its report on the top fitness and sports apps in the world.

  • MyFitnessPal is the top fitness and sports app on mobile, with in-app revenue of nearly 9 million U.S. Dollars.
  • Fitbit was ranked second with a combined revenue of 8.1 million U.S. Dollars via Google Play Store and Apple App Store
  • Strava generated revenues of around 5.6 Million U.S. Dollars
  • Peloton is a mobile app that allows users to use popular treadmills and stationary bikes. It generated IAP revenue of approximately 3.5 million U.S. Dollars.

Fitness apps are available in a wide range of options for users. These apps are similar, but also different in many ways. All of them, aside from their mobile apps, have built a brand people recognize, or simply are the best in their category.

Fitness & workout app tech stack – possible options

We’ll explore the different options available to app developers when choosing the right tech stack for their fitness app. We’ll also give you some tips on what might work best for your app and business. There’s no one best technology for fitness application development.

Do you want to create a mobile or web app first? You might want to build both. You have two choices for mobile app development: Native and cross-platform. Learn more about this.

Native app development

When you decide to develop a mobile app, one option is native app development. Native software, by definition, is created to run on specific operating systems. Native code, in a technical sense, is code that has been written for a specific processor. Cross-platform apps are designed to run across multiple operating systems or computer architectures.

A native mobile app, in summary, is a program written for a specific platform (such as Android or iOS) or device using a programming language native to the platform.

Native apps can take full advantage of the features on your device. Native app development will allow you to make use of any feature you want, whether it’s the camera, contacts list, GPS, voice recognition, or anything else. It’s a good choice for apps with complex features. If you want fitness app development that is available for both iOS users and Android users you will need to build two apps.

Tech stack

You can choose from Kotlin or Java for Android apps.

Cross-platform app development

This is the second option in every new mobile application development. When their native app becomes too old, owners of apps often choose to rewrite it using a cross-platform platform. Cross-platform technologies are becoming more popular and have many benefits for business. It’s much easier to develop and maintain cross-platform apps, for example, as there is only one codebase for both iOS versions and Android versions.

What is cross-platform application development? Cross-platform app development is the process of developing apps that run on multiple platforms or devices (operating systems and devices) using one codebase, rather than building separate apps for everyone. Many ways exist to build such an application. Cross-platform development can be used in many different situations. It’s not uncommon for developers to build a single code and then use APIs to make small changes for each platform. One developer can often create a cross-platform app for Android or iOS.

The popularity of cross-platform app development is because it allows apps to be available to a larger audience in less time. It can also be inefficient.

Tech stack

Flutter and React Native are the most popular cross-platform frameworks (with a combined share of 42% in 2021). Dart is the programming language used by Flutter if you decide to use it for fitness app development. Javascript is the programming language you will use if you choose React Native.

An example of a fitness application built using Flutter

Flutter was chosen by one of our partners to create a fitness app that included social networking elements. Users can create interactive leaderboards, chat, and organize sessions online and in real life, as well as organize matches, events, and more.

Web app development

Web apps can also be accessed through a web browser, for example. Google Chrome, Firefox and Safari. In general, web apps cannot be downloaded through mobile stores. Although they offer a variety of functionalities, they do not function offline. Remember that app development is not black and white. Sometimes, different technologies and approaches are combined to create a customized solution.

Web apps can be used on almost any device and platform. YouTube is an example of a web app. These apps can be quickly and easily built using a single source code. They are not as powerful and fast as native apps.

Tech stack

A web application is made up of a front end and a back end. The front end is what users see, while the latter is the part that users cannot see. Frontend technologies include Angular React Vue.js and Ruby on Rails. Backend technologies include Node.js Ruby on Rails PHP Python and Node.js.

Choose the right technologies to build your fitness app

List all the features that you would like to have in your app. You need a business strategy and core features before you can start creating a fitness application. You shouldn’t choose your tech stack until you have decided on the majority of features.

This decision is largely based on the features. Native development may be the better choice if, for example, you want to include the newest fitness trends as core features. Cross-platform development is a better option if you want to add a simple diet calculator and calorie calculator to your fitness app.

You can then define the tools you need to develop the app based on the list of features. You’ll have to select a payment solution provider if you know that your app will be able to accept payments. If you want to send notifications, you can choose the platform you need.

Determine third-party service

Here are a few more options for third-party services that your fitness app may require:

  • Google Analytics with Firebase, and Mixpanel) to measure performance. Google Analytics (Firebase, Mixpanel),
  • Payment gateways (e.g. Paypal) for in-app purchases and other purchases. Paypal)
  • Firebase): Push notification management (e.g. Firebase)
  • Mobile ads, for example. Google AdMob.

Here are some more tips to help you choose the right tech stack

You can skip to Native vs. Cross-Platform Mobile App Development if you are still unsure of which technology to use and what approach to take. What to choose? I would recommend going through the list below first. After you have completed the steps above and below, you should be able to determine what your preferences are for your fitness application.

Market research is essential to determining your business goals.

Fitness apps (or workout apps) are very diverse and have many different features. It’s important to first determine what your app will be used for. After you’ve outlined your idea, start researching the fitness app market. This includes paid apps as well as those that offer in-app purchases.

It’s important to test the viability of an idea before you start developing a mobile app. This will help determine if your project has the potential to be successful and profitable. A product roadmap can be a useful tool for determining the tech stack of your fitness app development.

Market research on mobile apps can include:

  • Analyse of competitors
  • Marketing strategy: How to create a marketing plan
  • Target audience research
  • Establishing your business goals
  • SWOT Analysis
  • How to Create a Business Model Canva
  • How to create a product roadmap
  • Defining a Unique Value Proposition

Create a list like this after the market research:

  • Enter the name of the product to see its calories
  • You can search for workout videos in different categories
  • The app can be connected to a smartwatch
  • Charts allow users to track their progress.

This description will require more explanations, but it is a great starting point for creating a fitness application.

Get advice from the Development Team

Even if you have no issues with any of the points above, there are still many things to do before fitness app development. It’s easier to find the right tech stack for your fitness app when you have the knowledge and experience. If you are unsure about certain features, the development team can help you choose them. They will also give you advice on how to optimize your business plan.

If you want to make the best fitness app, be as specific as possible with your requirements. The team will assist you with everything else. Check out our tips for finding the best mobile app development company to help you create your fitness app.

Choose the best options for your app

It’s still important to focus on features that will be added later, even if your MVP is a good start. By doing thorough market research, including researching app users, and creating detailed descriptions of your fitness apps’ basic features, you will facilitate and shorten development work and have a positive impact on the overall plan. If you do not have a plan, don’t attempt to determine the cost of app development or choose the technology stack for your app.


You can determine the tech stack of your fitness app once:

  • Choose whether you’d like to build a mobile app or a website (or both?).
  • List the features you want to include in your app.

Also, conducting market research, clearly defining your goals, and creating a development plan that is complete will help you to make the right choice. Reaching out to the team for help with these tasks can be extremely valuable.



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