What is the best strength training app?

Our verdict: the best app depends on what you need it to do

If you only want to log sets as quickly as possible, a specialized app such as Hevy or Strong may be more direct than Nalko. If you want free guided classes, Nike Training Club better fits that need. If you want an engine to choose upcoming workouts, Fitbod and the Freeletics Coach document continuous adaptation that Nalko’s initial program generator does not currently provide.

When you want to know whether a plateau comes from your program, nutrition, or a change in activity, it helps to compare training volume, calories, body weight, and steps. For that specific use, Nalko is our most coherent choice in this comparison because it already combines a strength-training log, nutrition tracking, body weight, steps, and an initial program built from your profile.

This answer is less dramatic than a universal ranking, but it is more useful. The best app covers your next important decision with as little duplicate entry as possible—and is still on your phone after two ordinary weeks.

• For a dedicated workout log: Hevy or Strong, depending on your interface preference and the limits of your chosen plan.
• For adaptive guidance: Fitbod or Freeletics, depending on the workout style you want.
• For free guided workouts: Nike Training Club.
• For nutrition-focused tracking: YAZIO, Foodvisor, or MyFitnessPal.
• To bring together strength training, nutrition, body weight, and steps: Nalko.

How we compared the fitness apps

Download counts and app-store ratings do not tell you whether an app meets your needs. We therefore compared documented support for seven practical tasks: building a realistic program, preparing a workout, logging sets and effort, tracking calories and protein, organizing recurring meals, reviewing body weight and steps, and deciding what to adjust.

We gave more weight to features available in France and described by an official source than to slogans, testimonials, or demonstrations without a clear protocol. When a feature did not appear in the documentation we reviewed, we describe it as undocumented; we do not claim it is impossible in every version.

Finally, we distinguish three concepts that comparisons often blend together: generating an initial program, automatically adapting workouts from training history, and chatting with an AI coach. An app can do the first without doing the other two.

• Workout-log depth: sets, reps, load, effort, rest, and history.
• Programming: self-built routines, a generated program, or continuous adaptation.
• Nutrition: foods, servings, calories, macros, recipes, and recurring meals.
• Physical context: body weight, trend, steps, and data that is actually available.
• Continuity: how much data must be copied into a second app.
• Access: free-plan limits, subscriptions, and regional availability.
• Verifiability: a currently documented feature or merely a promise.

2026 comparison: which app fits your needs?

This table does not try to add up checkmarks. It shows each app’s specialty and the friction that returns when your goal extends beyond it. Plans and features may change, so always verify what your device displays before paying.

Hevy or Strong: excellent workout logs, with nutrition kept separate

Hevy is no longer just a digital notepad. Its official feature list includes workout entry, previous values, perceived effort or RPE, a timer, set types, records, charts by muscle group, body measurements, and social features. Its Hevy Trainer generator can also build a program and offer progressive overload with a Pro plan. It would therefore be inaccurate to describe Hevy as merely a rep counter. Hevy — official feature list, Hevy — app overview

Strong takes an even more focused approach: plan training, log workouts, track best sets, view an estimated one-rep max or 1RM, and record certain measurements. Its official site also advertises data export. The help center, however, limits the free plan to three workout templates and describes nutrition tracking as importing macros from another compatible app. Strong — official presentation, Strong — workout-template limits, Strong — nutrition tracking through imports

The shared tradeoff is not poor workout logging but separated context. When muscle gain or fat loss also depends on calories, protein, body weight, and steps, you need to maintain a second source of truth. That setup works well if you like assembling your own tool stack; it becomes friction if you want one view of your progress.

Fitbod or Freeletics: continuous adaptation focused on training

Fitbod says it builds workouts around your goal, experience, equipment, preferences, history, and recovery, then updates recommendations based on performance. Fitbod therefore documents continuous adaptation from training history and recovery, while Nalko currently generates an initial program without automatically readjusting it. After the trial, however, history-based workout generation and logging new workouts require a subscription. Fitbod — operation and customization, Fitbod — how the trial works

Freeletics covers HIIT, calisthenics, gym workouts, free weights, cardio, and running. Its French page presents an AI-powered Coach that adapts to your schedule, equipment, location, and preferences. Freeletics also offers nutrition support, but its help center explains that Freeletics Training and Freeletics Nutrition are separate apps. Freeletics — personalized training and Coach, Freeletics — how the Nutrition app works

These options make sense if your main frustration is not knowing which workout to do. Their documentation does not describe the same type of dashboard combining a detailed workout log, meals eaten, body weight, and steps. That is a different specialization, not an absolute weakness.

YAZIO, Foodvisor, or MyFitnessPal: strong for nutrition, less direct under the bar

YAZIO documents calorie and macro tracking, barcode scanning, recipes, and goal customization. Foodvisor combines manual entry with, depending on the plan, photo analysis, reports, recipes, and suggestions; its paid Sport and Menus Pack also advertises a video program and 28 days of menus. The sources we reviewed for these two apps do not, however, describe a detailed workout log combining sets, loads, RIR, rest, and volume by muscle group. YAZIO — calorie tracker, Foodvisor — free, Premium, and pack features

MyFitnessPal can log exercises, sets, reps, and loads through Workout Routines, but its help center states that this feature requires a device set to English; the guided experience is also limited to Premium users on iOS. Its documentation does not describe a volume chart by muscle group, while Meal Planner and Nutrition Coach remain limited to certain markets. MyFitnessPal — Workout Routines, MyFitnessPal — availability of the Meal Planner, MyFitnessPal — availability of the Nutrition Coach

Friction appears when the food log, workout log, and volume by muscle group are split across multiple screens or apps. How much friction you experience depends on the features and integrations you actually use.

• Read our full YAZIO review →
• Read our full Foodvisor review →
• Read our full MyFitnessPal review →

What is the best free strength training app?

For guided workouts without a subscription, Nike Training Club is a straightforward option. Nike advertises more than 200 free strength, cardio, HIIT, yoga, and mobility workouts lasting 5 to 50 minutes. Its main strength is the size of that library, not detailed workout logging. Nike Training Club — free workouts and programs

For a workout log, Hevy and Strong offer free access, but you need to check the real limits: the number of routines or templates, statistics, history, and features reserved for Pro. A “free account” does not necessarily mean every feature is available without a subscription.

Nalko includes its core tracking features on the free plan, with five routines and 30 days of history, while scheduled meals, detailed micronutrients, and extended history are among the features reserved for Pro. We therefore do not present Nalko as completely free. The useful comparison is whether you can complete the first meaningful action without paying and whether a limit interrupts the habit before it becomes established.

The common tradeoff of specialized apps: data split across tools

A specialized workout log shows performance; a calorie counter shows intake. When those data stay separate, you must reconcile them before adjusting your program or nutrition. No single variable can identify the cause of a plateau with certainty.

Splitting data across apps can mean duplicate entry, separate charts, and rushed decisions based on the most visible variable. You might cut calories after one weigh-in, add volume after one poor workout, or change programs when you really needed one more week of observation.

Centralizing data does not guarantee a better decision, but it lowers the effort required to make one carefully: less duplicate entry, more comparable days, and one daily dashboard for meals, training, body weight, and steps. Nalko differentiates itself through this continuity more than through any spectacular feature.

• One daily dashboard for finding useful data.
• Less duplicate entry between the workout log and calorie tracker.
• Nutrition and activity goals visible on the same dashboard.
• A body-weight trend to compare with intake and steps without automatically assigning a cause.
• One adjustment at a time after several comparable days.

Why Nalko is our all-in-one choice for strength training

Nalko builds an initial program from your experience level, training frequency, weekly workout split, goal, and self-reported weak points. During a workout, the log records routines, sets, reps, loads, RIR, and rest times, then preserves your history, records, and volume. A rules engine generates this program; we do not present it as AI-generated.

In the same product, the nutrition log tracks foods, portions, recipes, calories, protein, carbohydrates, fat, and fiber. You can save prepared meals and, with Pro, schedule them so you do not need to rebuild the same days. Body weight is entered and displayed as a trend; compatible step data can sync from Apple Health or Health Connect, depending on your device and permissions.

The benefit is not that Nalko necessarily offers every advanced specialized feature on the market. It is that useful data—training, intake, body weight, and activity—can be viewed in one product before you change the plan. You can check the plan, execution, intake, weight trend, and activity before concluding that “it isn’t working.”

Does Nalko’s AI already adapt programs and meal plans?

No—not in the app published as of this article’s date. The Nalko AI coach exists as a development prototype. This internal prototype prepares suggestions that require validation, but it is not available as an autonomous coach in the public app.

Do not confuse the personalized initial program with continuous AI adaptation. Nalko does not currently claim to analyze recovery, body weight, and steps automatically to modify workouts. The app does not generate automatic meal plans either; it lets you manually create and schedule reusable meals.

This limitation must remain clear in the comparison: our verdict is based exclusively on the initial program and tracking features already available.

• Understand the real scope of the Nalko AI coach →

A 7-day test for choosing without trusting a ranking

Install no more than two finalists and use them through a normal week. Do not manufacture a perfect test week: use your real foods, actual equipment, schedule, and at least two workouts. Measure how long it takes to prepare, enter, and retrieve useful information.

On day seven, do not count features you opened once. Ask whether the app changed a decision: which workout to do, what load to target, how to fill a protein gap, whether to observe a weight fluctuation for longer, or whether several consistent days truly support an adjustment.

Finally, check free-plan limits, the price shown in the App Store or Google Play, renewal terms, export options, and availability in your language. A slightly less feature-rich app you use every day is more valuable than an impressive platform you abandon after setup.

• Day 1: create the program or routines without bypassing your real schedule.
• Days 2 to 6: log every useful set, three ordinary days of eating, body weight, and steps.
• Day 7: find specific information without entering the data again elsewhere.
• Count the number of apps needed to answer a single question.
• Choose the tool that reduces repeated friction, not the one with the best demo.

Takeaway: Nalko is our choice for all-in-one, not all-purpose

Hevy and Strong remain credible reference apps for workout logging. Fitbod and Freeletics document continuous workout adaptation. Nike Training Club is a solid source of free guided workouts. YAZIO, Foodvisor, and MyFitnessPal offer strong nutrition specialization.

Nalko is our recommendation when you want to combine a strength-training log with a calorie tracker. Your initial program, sets, intake, reusable meals, body weight, and steps remain accessible in the same product.

This verdict stays honest only while we preserve the boundary between the current product and its roadmap. Choose Nalko for the all-in-one tracking it offers today, not for AI or meal-planning features that are still unavailable.