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Fitness Apps

Tutorials, comparisons, and deep-dives for developers building fitness and workout applications with exercise APIs.

Tutorial Mar 26, 2026 · 8 min read

How to Build a Workout App Using a REST API

A complete step-by-step guide to fetching exercises, displaying GIF animations, filtering by body part and muscle group, and shipping a production-ready fitness app. Includes JavaScript, Python, and Swift examples.

JavaScript Python REST API Exercise GIFs
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Comparison Updated May 2026

ExerciseDB alternative

Head-to-head vs ExerciseDB, migration in two steps, FAQ — direct API without marketplace middleware.

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Comparison Updated May 2026

Exercise API without RapidAPI

How marketplace-hosted exercise APIs differ from a first-party vendor API — model-level view, neutral tone.

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All Articles

Tutorial Comparison Guide
New May 17, 2026

How to Add an AI Workout Generator to Your Fitness App

One API call returns a complete, structured workout plan — exercises, sets, reps, and rest periods — personalised by goal, duration, fitness level, and available equipment.

JS Python Pro
9 min read
Tutorial Mar 26, 2026

How to Build a Workout App Using a REST API

Step-by-step guide: fetch exercises, render GIF animations, filter by body part, and ship a production-ready fitness app in under 100 lines of code.

JS Python
8 min read
Guide Mar 26, 2026

Best Free Exercise API for Developers in 2026

Comprehensive comparison of free exercise APIs. WorkoutX, ExerciseDB, Wger and more — free tier limits, data quality, and GIF support compared.

Free API Comparison
12 min read
Guide Mar 26, 2026

Top 10 Exercise Databases for Fitness Apps in 2026

Complete list of the best exercise databases for fitness app development. Compare features, pricing, API access, and data quality.

Database Comparison
15 min read
Migration Apr 29, 2026

Migrating from ExerciseDB to WorkoutX

Full endpoint mapping, auth change, and code examples. Swap ExerciseDB for WorkoutX in ~20 minutes — no more RapidAPI dependency.

JS Python
8 min read
Guide Apr 29, 2026

Best Exercise API with GIF Animations in 2026

Which exercise APIs include animated GIF demonstrations? Comparison, free tiers, resolution quality, and how to display GIFs in your app.

GIFs Comparison
7 min read
Tutorial Apr 29, 2026

How to Use an Exercise API in React

Build a full exercise browser with GIF animations, body part filtering, search, and pagination using React hooks and the free WorkoutX API.

React Hooks
10 min read
fitness_center

Browse Exercises by Body Part

Explore our full exercise database organized by muscle group. Each page includes exercise names, target muscles, equipment, and live API examples.

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