Kalybr vs Project Lean
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kalybr
This app provides personalized training programs designed by your coach, with clear exercise instructions and progress tracking. It offers a structured weekly plan and a direct connection to your coach for seamless collaboration. Focus on your fitness goals with a clean and distraction-free experience.
- Personalized training programs
- Clear exercise instructions
- Workout tracking
- Weekly training structure
- Coach-client connection
- Intuitive interface
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Kalybr — Your Training, Fully Personalized Kalybr is your all-in-one training companion, built to connect you directly with your coach and keep your workouts structured, clear, and easy to follow. Whether you’re training for performance, consistency, or long-term health, Kalybr delivers your personalized program in a simple, intuitive app so you always know what to do, when to do it, and how to do it. Key Features Personalized Training Programs Receive workouts designed specifically for you by your coach, tailored to your goals, schedule, and progression. Clear Exercise Instructions Each workout includes detailed exercise prescriptions, making it easy to understand what to perform and how to perform it. Workout Tracking Log completed workouts, track your progress, and stay consistent over time. Weekly Training Structure View your training plan organized by days and weeks, helping you stay focused and on schedule. Coach–Client Connection Kalybr is built around seamless collaboration between you and your coach, ensuring your training stays aligned and adaptable. Built for Focus and Consistency Kalybr removes the guesswork from training. No clutter. No distractions. Just the workouts you need, delivered in a clean and reliable experience. Train with purpose. Train with clarity. Train with Kalybr.
Project Lean
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Project Lean is nutrition coaching that names patterns. Most calorie trackers leave you alone with the numbers. Project Lean is different. You scan your meals, and the AI estimates macros automatically. Then it watches the patterns: which days you fall off, which foods you reach for under stress, where your week falls apart, what's actually moving your goals forward. Every day, you check in. The AI coach reads everything: today's meals, your patterns this week, your goals, your weak spots. It names what it sees. Sometimes it pushes back. Always concrete, never generic. Once a week, Insights pulls it all together: habit consistency, mood trends, what's working, what isn't. Project Lean is designed for people who already know nutrition basics and want something to think alongside them, not a tracker that just counts. WHAT YOU GET - AI meal scanning from photos: point your camera at the plate, log the macros - Macro estimation with confidence ratings so you know when to double-check - Daily check-ins for habits, mood, stress, and cognitive patterns - AI coach with full context: your profile, your week, your history - Lean Brain chat: open-ended questions, coach-quality answers - Weekly Insights with pattern recognition across habits and mood - Streak tracking with reset day support (planned cheat days don't break your streak) - Meal templates for foods you eat on repeat - Push reminders at your chosen daily time WHO IT'S FOR People serious about their nutrition who want a thinking partner, not a database. Works for cutting, bulking, recomp, or just keeping yourself honest. PRIVACY Your data stays yours. Meal photos, check-ins, and chat messages are private to your account. We never sell or share your data with advertisers. Sign in is required so your data syncs across devices and you can recover your account. SUPPORT Questions? Reach us at support@theleanbrain.app or visit https://theleanbrain.projectlean.app/support
Screenshots
Verdict
Kalybr and Project Lean are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Kalybr ships an update every 3 weeks, Project Lean every 2 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.
| Parameter | Kalybr | Project Lean |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 weeks | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 | 15.1 |
| Further details — not scored | ||
| Size | 55 MB | 45 MB |
| Age rating | 12+ | 4+ |
| Developer | Mohamed Zakaria | Stride Performance |
In-app purchases
Kalybr
No in-app purchases
Project Lean
No in-app purchases








