ZENKAI is a gym workout app that builds you a real periodized training program, guides every session, and turns the work you log into a character sheet.
Most workout apps show you stats that never move, because they came from a questionnaire. Here, every number comes from the sets you logged.
A REAL TRAINING PROGRAM, NOT A RANDOM WORKOUT
• A periodized training plan of 8 to 12 weeks, built to the deadline you set: progressive overload, deload weeks, weekly volume managed per muscle group
• Every workout, every set and every starting load calculated before you walk into the gym
• Built around your equipment, your available days, your injuries and your starting strength
• Full gym, home gym or bodyweight only — the workout plan adapts to what you actually have
• Change your training days, your equipment or an injury and the rest of the block is rebuilt
A CHARACTER SHEET THAT IS NOT DECORATION
• Five stats — STRENGTH, ENDURANCE, VOLUME, RECOVERY, DISCIPLINE — computed from your logged workouts
• LEVEL only goes up. RANK goes up and down, because it says where your training is right now
• 17 titles and 41 achievements, every one earned from real lifting. No daily login rewards, no invented quests
• Every formula is visible inside the app, with your own numbers in it
A WORKOUT TRACKER BUILT FOR THE GYM FLOOR
• Log a set in two taps. Big targets, no keyboard
• Automatic rest timer with haptics, and a notification if you leave the app
• Last workout's numbers on the same line as today's
• Fully offline. A dead signal in the basement changes nothing
• Swap an exercise when a machine is taken: same movement pattern, your equipment, your injuries
• Movement demos on the main lifts, plus written form cues on every exercise
PROOF THAT YOUR TRAINING IS WORKING
• Strength curve and estimated 1RM for every exercise you log
• Personal records detected the second you hit them
• Volume heatmap by muscle group, so you can see the muscles you keep skipping
• Bodyweight chart with a 7-day average, because the daily number is noise
• A Sunday evening training recap: sets, tonnage, rank
• Full workout history, every set you ever logged, exportable as JSON
DAILY TARGETS, NOT A FOOD DIARY
• Calories, protein and water, calculated from your body and your training load
• One tap to log them. No barcode scanning, no food database, no guilt
WHO IT IS FOR
Lifters who want a strength training program written for them rather than a blank workout log, and who want the gym to feel like progression instead of paperwork. Beginners get a first plan they can follow without knowing anything. Intermediates get periodization, volume management per muscle group and push pull legs or upper lower splits chosen for their available days.
HOW IT WORKS
1. We build the plan
2. You log the work
3. Your character levels up
Your stats only go up because your lifts go up.
SUBSCRIPTION
ZENKAI requires a subscription: $44.99 per year, or $6.99 per week. Payment is charged to your Google Play account at confirmation of purchase. The subscription renews automatically unless you cancel it at least 24 hours before the end of the current period. You can manage or cancel it in the Google Play subscriptions settings.
Terms of Use: https://zenkai.app/terms
Privacy Policy: https://zenkai.app/privacy
ZENKAI provides training programs, not medical advice. Talk to a doctor before starting a training program, especially if you have an injury or a health condition.
Exercise illustrations adapted from everkinetic, licensed under CC BY-SA.
Strength training plan, workout tracker, and stats that come from real lifts