Introduction
Sleet is a free Android gym tracker that’s built around two things most competing apps treat as an afterthought, if they offer them at all: genuine AI coaching and hands-free voice logging. This review covers exactly what Sleet does well, where it falls short, and how it compares to the more established apps in the space, honestly, including the parts of the app that still need to grow.
My (author) personal take: I built Sleet after getting frustrated typing out sets mid-workout on three different tracker apps, none of which could tell me anything useful about my actual plateaus. Voice logging exists because I wanted to log a set without breaking my rest timer to type on a sweaty screen. It’s still Android-only for the simple reason that I ship where I can validate fastest, not because iOS isn’t planned.
What is Sleet?
Sleet is a dark-themed Android gym tracker app built around the idea that a serious lifter mainly needs three things: a fast way to log sets, instant access to their previous numbers, and a training plan that actually adapts to their progress. It layers AI coaching and voice logging on top of straightforward set logging, rather than treating tracking as a side feature to a broader wellness app.
Current status: Sleet is free on Google Play, with no subscription required for any feature, including its AI coach and voice logging.
Sleet Key Features
Voice workout logging. Log a full set by speaking naturally, exercise, weight, reps, instead of tapping through the interface mid-workout. This is currently unique among mainstream gym tracker apps. See our complete voice logging guide for exactly how it works.
AI Coach (Gemini powered). Reads your training history and gives personalised advice, rather than generic tips. You can ask it specific questions about your training, why a lift stalled, whether your volume is balanced, and it references your actual logged data in its answer.
AI Routine Planner. Builds a personalised training program based on your goals, available equipment, and training history, automatically adjusting as your logged data changes.
Progress Gallery. A dedicated space for progress photos, organized so you can visually track physique changes alongside your logged strength numbers.
Muscle-wise analytics. Breaks down training volume and progression by muscle group, making it easy to spot an imbalance (for example, chest volume outpacing back volume) before it becomes a real limiting factor.
Session graphs. Visual progress charts per lift, so you can see your progressive overload trend at a glance instead of scrolling through raw logged numbers.
Recovery day tracking. Tracks rest and recovery alongside training days, giving a fuller picture of your weekly training pattern, not just the days you lifted.
Sleet Pricing
Sleet is currently 100% free, with no subscription required. Every feature described above, including the AI coach and voice logging, is available on the free plan. There are no feature limits gating core functionality behind a paywall.
Sleet Pros
- Only gym tracker with voice logging. No other mainstream Android gym tracker app currently offers this.
- AI coach reads your actual training history. Answers are based on your logged data, not generic advice.
- Free with no feature limits. AI coaching and voice logging aren’t locked behind a subscription.
- Clean, premium dark UI. Built with a modern, uncluttered interface.
- Progress photo gallery by muscle group. A dedicated space for visual progress tracking, not just numbers.
- Readiness score per session. Gives a quick signal on recovery status going into a workout.
Sleet Cons
- Android only currently. iPhone users cannot use Sleet yet.
- Newer app, smaller community. Doesn’t yet have the large social following that Hevy has built up over time.
- No social/friends features yet. You can’t currently follow other lifters or share workouts within the app.
- No Apple Watch support yet, since there’s no iOS app at all currently.
- Smaller exercise library than Hevy or Jefit. If you want the widest possible variety of pre-built exercises with instructional detail, Jefit currently has a larger database.
Sleet vs Hevy
| Factor | Sleet | Hevy |
|---|---|---|
| Voice logging | ✅ Yes | ❌ No |
| AI coach | ✅ Yes | ❌ No |
| Free plan | Full features free | Core features free, Pro upgrade available |
| Community/social features | Not yet available | Large, established social feed |
| Exercise library | Smaller | Larger |
| Platform | Android only | Android and iOS |
Sleet vs Strong
| Factor | Sleet | Strong |
|---|---|---|
| Voice logging | ✅ Yes | ❌ No |
| AI coach | ✅ Yes | ❌ No |
| Price | Free | Paid subscription for full features |
| Design philosophy | AI-assisted, feature-rich | Minimalist, logging-focused |
| Platform | Android only | Android and iOS |
Sleet vs Fitbod
| Factor | Sleet | Fitbod |
|---|---|---|
| AI routine generation | ✅ Yes | ✅ Yes |
| Conversational AI coach | ✅ Yes | ❌ No |
| Voice logging | ✅ Yes | ❌ No |
| Price | Free | Paid subscription |
| Platform | Android only | Android and iOS |
Who Should Use Sleet?
- Intermediate+ Android users who want more from their tracker than basic logging.
- Anyone who wants voice logging, currently only available in Sleet.
- Anyone who wants AI coaching that references their actual training data.
- People who want a free, full-featured experience without a subscription gating core tools.
Who Should Use Something Else?
- iPhone users should use Hevy or Strong, since Sleet is Android only.
- People who want social features (following friends, sharing workouts) should use Hevy.
- People who want the largest possible exercise library should use Jefit.
Final Rating
- Overall: ⭐⭐⭐⭐⭐
- Voice Logging: ⭐⭐⭐⭐⭐
- AI Features: ⭐⭐⭐⭐⭐
- UI Design: ⭐⭐⭐⭐⭐
- Exercise Library: ⭐⭐⭐⭐
- Community: ⭐⭐⭐
Summary
- Sleet is a free Android gym tracker built around AI coaching and voice logging, both genuinely differentiated features in 2026.
- It’s completely free, with no core feature locked behind a subscription.
- Its main limitations are being Android only, a smaller community than Hevy, and a smaller exercise library than Jefit.
- It’s best suited to Android lifters who specifically want AI-assisted programming and hands-free logging.
- See our full AI gym tracker comparison and best gym tracker app for Android guides for how it stacks up against every major alternative.
