Sleet Overview
Sleet is a free Android gym tracker built by lifters, focused on fast logging with two features most competitors don’t offer: voice logging and a conversational AI coach. It’s built with a modern, premium dark-themed interface using Jetpack Compose.
Current status: Free on Google Play, Android only, actively adding new features.
Key differentiating features:
- Voice logging: log a full set by speaking naturally instead of tapping through menus
- AI coach powered by Gemini that reads your training history and gives personalised advice
- Free AI routine planner that builds a weekly program from your goals, equipment, and training data
- Progress photo gallery with side-by-side comparison mode
Hevy Overview
Hevy is one of the most established gym tracker apps available, with a large, active user base and a strong reputation built up over several years. It’s available on both iOS and Android, which gives it a much wider potential audience than an Android-only app.
How long it’s been around: Hevy has been a mainstay in the gym tracker space for years, building a loyal community over that time.
User base size: Hevy reports over 14 million users, making it one of the largest dedicated gym tracker apps on either platform.
Core strengths: fast manual logging, a large exercise library with instructional images, workout templates, and a genuinely active social feed where users follow each other and share workouts.
Voice Logging: Sleet vs Hevy
Sleet has voice logging; Hevy does not. In Sleet, you speak your set naturally, for example “bench press, 80 kilos, 8 reps”, and it’s logged automatically with a quick confirmation step. Hevy requires manually tapping through exercise, weight, and rep fields for every set, the same as most other gym tracker apps.
Who this matters for: lifters who train heavy compounds and don’t want to handle a touchscreen with chalky or sweaty hands, and anyone who finds that stopping to type breaks their focus between sets.
AI Features: Sleet vs Hevy
Sleet’s AI coach reads your actual training history and can answer specific questions about your progress, plateaus, or muscle balance, rather than giving generic tips. It also includes a free AI routine planner that generates a personalised weekly program based on your goals, equipment, and logged data.
Hevy currently has no AI features, no AI coach, and no AI-generated routines. It relies entirely on manual programming and its exercise library and templates.
When AI matters: if you want programming help or data-driven insights without hiring a coach, Sleet’s AI features fill that gap. If you already know your program and just want a reliable logger with a big community, the lack of AI in Hevy isn’t a real drawback.
Pricing: Sleet vs Hevy
Sleet is fully free, including voice logging, the AI coach, and the AI routine planner, with no subscription tier at all.
Hevy offers a free core plan (logging, exercise library, social feed) with a Pro subscription (around $7/month) unlocking extended analytics and customization options.
Value comparison: if you specifically want AI coaching or voice logging, Sleet delivers both for free, features Hevy doesn’t offer at any price. If you want Hevy’s specific Pro analytics or its social/community features, that’s a value only Hevy provides.
UI and Design
Both apps use a dark theme by default. Sleet leans into a premium, modern feel with smooth animations and a minimal, focused interface built around its AI and voice features. Hevy’s interface is clean and highly functional, prioritising fast logging and clear workout history over visual flourish, which suits lifters who just want to get in, log, and get out.
