Best Fitness Apps of 2025: Comparing 8 Popular Options for the Gym and Home

The fitness app market grows every year, and choosing the right one is getting harder. Some offer hundreds of video lessons, while others focus on algorithms and personalisation. In this article we compare 8 popular fitness apps of 2025 — so you spend your time working out, not searching for the right tool.

How to Choose a Fitness App: What to Look For

Before downloading the first workout app you come across, it's worth honestly answering a few questions. This will save time and spare you from disappointment a week later.

Define your goal. Weight loss, muscle gain, improved flexibility, or simply staying active — different goals require different approaches. A weight-loss app focused on cardio will be a poor tool for someone who wants to build strength.

Consider your fitness level. A beginner needs clear technique guidance and a gradual increase in load. An experienced athlete needs flexibility in customisation and the ability to target specific muscle groups. Many apps claim to support all levels, but in practice they cater to one segment.

Check the workout format. If you train at home, make sure the app includes equipment-free programmes. If you go to the gym, a library of machine and free-weight exercises matters, along with the ability to log sets.

Evaluate the interface. A confusing menu and unclear instructions reduce motivation. A good fitness app for home or the gym should be understandable from the first launch, with no need to read a manual.

Pay attention to language and offline mode. A localised interface is important for a comfortable experience, and offline access is essential for training without a stable internet connection.

For more on how to compare apps and a personal trainer against key criteria, read the article "Personal Trainer or Fitness App: What to Choose in 2025".

Comparison Table: 8 Best Fitness Apps of 2025

App	Platform	Workout Type	Level	Meal Plan	Offline	Language
Nike Training Club	iOS, Android	Strength, cardio, yoga	All	No	Yes	RU available
Freeletics	iOS, Android	Functional HIIT	All	Yes	Partial	RU available
MyFitnessPal	iOS, Android	Cardio, general	All	Yes	No	RU available
Fitbod	iOS, Android	Strength	Intermediate, advanced	No	Yes	EN
FitOn	iOS, Android	Cardio, HIIT, yoga	Beginner, intermediate	Paid	Paid	EN
JEFIT	iOS, Android	Strength	All	No	Yes	EN
7 Minute Workout	iOS, Android	Functional	Beginner, intermediate	No	Yes	RU available
Centr	iOS, Android	Mixed	All	Yes	Paid	EN

The table gives an overall picture: if you are a beginner and want to start without equipment, look at Nike Training Club, Freeletics, or 7 Minute Workout. For the gym with a focus on strength — Fitbod and JEFIT. A comprehensive lifestyle approach — MyFitnessPal and Centr.

Nike Training Club — A Versatile Choice for Any Level

Nike Training Club (NTC) is one of the most well-rounded workout apps on the market. The library includes hundreds of sessions: strength, cardio, yoga, mobility work, and stretching. Each type of workout is structured by difficulty level, allowing for gradual progression.

The key advantage is week-by-week programmes. You don't just pick a random workout — you follow a sequential plan with a clear logic of load and recovery. Video instructions are recorded with professional Nike trainers and demonstrate technique clearly, with emphasis on common mistakes.

What is particularly valuable:

Suitable for both home workouts and the gym — versions with and without equipment are available
Offline mode lets you download a programme in advance
Interface available in Russian
Free basic version with full-featured content

If you are just starting out in fitness, NTC is a great starting point. If you want to understand how to build a workout programme yourself, the article on the site will help you grasp the logic of structuring load — this will make working with any app more purposeful.

Freeletics — Intense Workouts with an Adaptive Plan

Freeletics is built on the principles of high-intensity functional training. Workouts are short, dense, and physically demanding — the app is designed for those who are ready to give their all.

The main feature is its adaptive algorithm. After each session the app asks questions: how did you feel, did you have enough energy, was it too easy? The plan is adjusted based on your answers. This brings the format closer to working with a live trainer, albeit in a simplified way.

Key details:

All exercises use bodyweight — no equipment needed
A built-in coaching module provides recovery and routine recommendations
A gym version is available for those who train with equipment
Russian-language interface is included

The main criticism of Freeletics is its high intensity from the very first weeks. Beginners without a basic fitness base can find it hard to start here. If you are just beginning, read the article on strength training for beginners — it will help you avoid typical mistakes at the start.

Fitbod and JEFIT — Best Apps for Strength Training at the Gym

If your priority is progress in the gym with weights, these two apps are most often named the best in their class.

Fitbod analyses your training history and automatically builds a plan for your next session. It takes into account available equipment, working weights, and which muscles have not yet recovered. The algorithm distributes load across muscle groups, reducing the risk of overtraining.

JEFIT offers a different approach: a vast exercise library with animated technique demonstrations, flexible creation of custom programmes, and a detailed training log. The app is especially popular among those who prefer to control every aspect of their training manually.

Shared advantages of both:

Detailed log of sets, reps, and working weights
Offline mode support
Suitable for independent gym sessions without a personal trainer
Allow tracking of load progression

For a more detailed look at the topic of gym progression, we recommend the article "f/ai for Gym Workouts" — it explains how an AI-driven approach changes the logic of load planning.

FitOn and 7 Minute Workout — For Short Workouts Without Equipment

These two apps solve one problem: training regularly, even when time is critically short.

FitOn offers short group classes with well-known instructors. Formats are varied: HIIT, Pilates, yoga, stretching, dance. Sessions are designed to last 10–30 minutes — enough to stay active with a packed schedule. The social element (the ability to work out with friends online) boosts motivation.

7 Minute Workout is extremely minimalist: a single session takes just a few minutes, includes classic bodyweight exercises, and requires nothing but a flat surface. According to the American College of Sports Medicine, high-intensity short protocols, when performed regularly, produce a measurable effect on cardiovascular health.

Why they work for building a habit:

Low psychological barrier: "just 7–20 minutes" is easier to accept than "an hour at the gym"
No equipment or special clothing needed
Suitable for working out at home, in a hotel, or outdoors
Ideal as a supplement to a main programme

If you want to explore the topic of home workouts further, read the comparison of the best home workout apps of 2025.

MyFitnessPal and Centr — Apps Focused on Nutrition and Lifestyle

Workouts deliver results only in combination with nutrition. These two apps place particular emphasis on a comprehensive approach.

MyFitnessPal is one of the most well-known food diaries. The product database contains millions of entries, including dishes from restaurants and shops. Barcode scanning speeds up data entry. The app tracks calories and macros, builds charts, and helps you stick to your calorie target. The workout functionality is basic, so MyFitnessPal is most often used as a complement to other workout apps.

Centr is a project created with the involvement of Chris Hemsworth. It brings together workouts, meal plans, and mindfulness practices in a single space. The content is varied: strength, cardio, yoga, meditations, recipes. It is more of a lifestyle-in-an-app than a narrowly specialised tool.

Who these apps are suited for:

Those who want to track nutrition alongside their workouts
People looking for a comprehensive approach, not just a training plan
Those who want to develop lasting eating habits

If nutrition is a pressing concern for you, we recommend reading the article "How Much Protein Do You Need per Day" — understanding the basic norms will help you set up your food diary more mindfully.

FAQ: Frequently Asked Questions About Fitness Apps

Which fitness app is best for a beginner?

For beginners, Nike Training Club and Freeletics (with caution) are the best options. NTC provides clear video instructions and a gradual increase in load, which is critical for those just starting out. It is important not to rush and to avoid apps with immediately high intensity — the risk of injury and early burnout is significantly higher at the start. Also read about common beginner mistakes at the gym before you begin training.

Is it possible to achieve results training only with an app, without a personal trainer?

Yes, it is realistic — provided you are consistent, maintain proper technique, and build load progression sensibly. Apps with adaptive algorithms (Fitbod, Freeletics, and also f/ai — the AI trainer app (fitgpt.pro)) partly take on the planning function that previously only a live trainer could perform. The key limitation of any app is that it cannot see you in person and cannot instantly correct a movement error.

How does an AI trainer differ from a regular fitness app?

A standard app offers ready-made programmes from a library. An AI trainer builds a plan individually: it takes into account your goal, experience, available equipment, health status, and progress dynamics. It adapts based on real data from your workouts, rather than simply switching difficulty levels. A detailed comparison is available in the article "AI Trainer vs Regular Trainer".

Is a meal plan necessary in a fitness app?

It depends on your goal. For muscle gain and weight loss, nutrition plays a key role — without it, even the best workouts on your phone will deliver limited results. If the app does not include nutrition, use MyFitnessPal as a supplement. Learn more about nutrition for muscle gain to build your diet mindfully.

How do you track progress in fitness apps?

Most apps record training history: working weights, number of reps, time spent. The key principle is to regularly compare current results with previous ones. What exactly to track and how to analyse data is explained in detail in the article "f/ai: How to Track Workout Progress".

💪 Train smarter with f/ai — the AI trainer will build a personalised programme for your goals and adapt to your progress. Download the app →