What is Fitless?
Updated July 14, 2026
Fitless is an AI personal trainer app for iPhone and Android. It builds personalized workout plans from a photo-based analysis of your body, the equipment you have, and your routine, logs every set, and suggests the right moment to increase the load. It is available in Portuguese, English, and Spanish, and it's free β with an optional Pro plan for those who want more.
How does Fitless build your workout plan?
You answer a quick quiz about your goal, experience, weekly frequency, and available equipment. Combining those answers with your body analysis, the AI generates a complete plan: training split, exercises with demonstration GIFs, sets, reps, starting loads, and rest times.
The plan adapts to your context. If you train at a gym, Fitless uses the machines; if you train at home, it builds everything with dumbbells, bands, or just your body weight. You can generate a new plan whenever you want and edit any exercise.
What is the AI body analysis?
From a few photos, Fitless estimates body-fat percentage, lean mass, body type, and BMI. The result becomes a visual report and feeds workout generation: the plan considers your real starting point instead of a generic average.
Photos are processed with privacy protections, and you can redo the analysis to track how your body changes over the months.
How does load progression work?
Every logged set becomes history. The AI follows that history, detects when you are ready to progress, and suggests the next load right on the workout screen. You decide whether to accept the suggestion or keep the current weight.
It is the same logic a good personal trainer uses: gradual progression based on what you actually lifted, with no spreadsheets and no guesswork.
Can I import an existing workout plan?
Yes. Record your screen in another workout app, or send a photo of your gym sheet, a PDF, or a spreadsheet. The AI rebuilds the full plan, with exercises, sets, loads, and rest, ready to track in Fitless.
How much does Fitless cost?
Training with Fitless is free. Fitless Pro is an optional subscription that unlocks extra features: unlimited AI-generated workouts, training from your watch (Apple Watch, Wear OS and Garmin) and bi-sets. You can subscribe whenever you want.
Fact sheet
| Category | Fitness, AI personal trainer, workout tracker |
|---|---|
| Platforms | iOS, Android, Apple Watch, Wear OS and Garmin |
| Languages | Portuguese (Brazil), English, and Spanish |
| Price | Free; Pro optional |
| Works offline | Yes, workouts sync when the connection returns |
| Gym required | No, plans adapt to home or bodyweight training |
| Developer | OPALLOO INOVACOES LTDA |
Try Fitless
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