locknn: workout log & ai coach
gym tracker, run, step counter
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Your AI coach, body scan and full gym log in one app. Track sets, reps, runs and steps, keep the streak alive, and see every personal best. No account needed.
Train, log it, and let your AI coach take it from there.
LOCKNN is the workout tracker that records the whole session, not just the numbers: every set, rep and weight, your live route and pace, the mood you were in, and the photo you took at the end. Pick from 50+ workout types, tap start, and go.
Your AI coach
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Ask it anything, any time. The coach reads your actual training history, so the answers are about you: what to train next, why a lift stalled, how to build back after a week off, whether today should be heavy or easy. Run a body scan to get a read on where you are now, then check back in as it changes.
How it works
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Choose your workout from running, strength, cycling, swimming, HIIT, yoga, boxing, and dozens more. LOCKNN tracks the session live with elapsed time, calories, heart rate, and GPS distance for outdoor activities. When you finish, it is saved in full: splits, elevation, average pace, and peak heart rate.
Key features
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• AI coach: chat with a coach that knows your training history and answers in your language
• Body scan: capture where you are now and track how it changes over time
• Exercise library: 350+ exercises with step by step instructions and video guides
• Workout plans: build your own plan, save it, and run it session after session
• 50+ workout types: walking, treadmill, gym sessions, rock climbing, basketball, tennis, pilates, CrossFit, muay thai, skiing, dancing and more
• Live tracking: real-time calories, heart rate, distance, pace, and elevation
• Sets and reps: log every set with weight, reps, and notes for strength training
• Workout journal: tag your mood mid-session, on fire, focused, pushing hard, or tired
• Streaks: see your current streak and stay consistent day after day
• Step and calorie charts: daily, weekly, and monthly views with trend lines
• Insights: personal bests, total stats, workout frequency, and volume charts
• Weight log: record your weight and watch the trend line, not the daily noise
• Smart reminders: get notified on the days and times you pick
• Apple Health sync: two-way sync for heart rate, steps, activity, and more
• Photos: snap a shot mid-session and review it later with the workout
• GPS routes: distance, elevation gain, pace splits, and full route review
• Home screen widget: daily steps, calories, and streak at a glance
• Live Activity: your active workout on the Lock Screen with real-time stats
Now in 24 languages
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The whole app is translated, including every exercise name and every set of instructions. Your AI coach replies in your language too.
Why LOCKNN?
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Most workout trackers are either too simple to be useful or too cluttered to enjoy. LOCKNN gives you real depth: sets, reps, mood, heart rate, GPS, body scans and photos ready for your socials, without making the experience feel heavy. You open it, you tap start, and you train your way.
What people use it for
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• Logging strength sessions with sets, reps, and weight
• Tracking outdoor runs and rides with live distance and pace splits
• Asking the coach what to do on a day they cannot decide
• Reviewing weekly calorie burn and keeping a workout streak alive
• Watching heart rate trends and personal bests build up over time
• Keeping a visual record of training with photos and mood tags
The workout app that doesn't feel like a workout app
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LOCKNN stays out of your way, and is right there the moment you need it. No cluttered menus, no complicated workflows. Pick a workout, press start, and everything else is handled. Your training history is always there: keep it as memories, measure it against your goals, or share it.
No account required. Open it and start tracking. Your data stays on your device, with optional sign-in for sync across devices.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
General bug fixes and improvements.
The developer, appsix, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- appsix
- Size
- 198.9 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
English and 23 more
- English, Arabic, Danish, Dutch, Filipino, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- LOCKNN MAXX (1-Week) $2.99
- LOCKNN MAXX (1-Year) $39.99
- Copyright
- © appsix (c) 2026