How Fitbod AI Works
Fitbod’s AI is built around a muscle fatigue and recovery model: it estimates how recovered each muscle group is based on your recent training and automatically generates a new workout for your session accordingly.
- Generates a complete workout automatically, with exercise selection changing session to session based on estimated recovery
- Good for lifters who don’t know what to do and want a plan handed to them with zero setup
- Not a conversational coach, you can’t ask it a specific question about your training and get an answer referencing your data
How Sleet AI Works
Sleet’s AI is built around a conversational coach powered by Gemini, alongside a separate AI routine planner:
- Reads your full training history, not just your last session
- Conversational AI coach you can ask direct questions, for example why a lift has plateaued
- Detects muscle imbalances, for example flagging if pulling volume has fallen behind pushing volume
- Builds personalised routines based on your goals, equipment, and training history
- Voice logging integration lets you log sets by speaking, then ask the AI coach about them later
AI Quality: Sleet vs Fitbod
Fitbod and Sleet take genuinely different approaches, and neither is universally better, they’re built for different needs.
Fitbod is better for: complete beginners who want a full workout generated for them automatically every session, with no need to understand programming themselves.
Sleet is better for: intermediate lifters who already have some training experience and want coaching and insights, questions answered, imbalances flagged, plateaus explained, rather than just a workout dropped in front of them.
Pricing: Sleet vs Fitbod
Fitbod is one of the more expensive gym apps on the market, with a subscription around $12.99/month after a limited free trial.
Sleet is completely free, including its AI coach, AI routine planner, and voice logging.
Feature for feature: if you compare price against what each app actually delivers, Sleet includes voice logging and conversational AI coaching, both absent from Fitbod, at no cost.
Voice Logging: Sleet vs Fitbod
Fitbod has no voice logging feature; all workout tracking is done by tapping through its interface.
Sleet is currently the only AI gym app with voice logging, letting you log a full set, exercise, weight, reps, by speaking naturally instead of navigating menus mid-workout.
