Every set against last time.
Log every set against last time, with personal records caught as they happen.
Zefro
Log it once. AI reads all of it.
Food, training, cardio and coaching in one app. With AI that connects them.
Snap a meal. It’s logged.
Photograph your plate, type what you ate, or scan a label. AI fills in the calories and macros.
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Snap a photo.
Zefro finds the foods and estimates the grams in seconds.
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Tap to fine-tune.
Portions, oil or butter. Tap any food to fine-tune it.
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Logged to your day.
Your portions and oil answers are saved.
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Read with your training.
Then it reads your meals with your training: insights, a weekly report, and a coach you can ask.
Tested against dozens of lab-weighed meals from the Nutrition5k research dataset. Fine-tune any portion in a tap.
Plate and weights: Nutrition5k (Thames et al., CVPR 2021), CC BY 4.0.
Zefro for coaches
Coach from real data.
Your clients log in to Zefro. You see all of it, and coach right there.
- The whole client, on one screen. Training, meals, weight, photos and check-ins, as they log them.
- Plans land in their app. Build the plan once and assign it to one client or many. It appears on their Train tab and on Today.
- Check-ins, every week. They answer. You review the week next to their numbers and reply.
- Your clients pay nothing. Free for up to 2 clients. Zefro takes 0% commission and never handles the money.
Training and cardio, one history.
Runs, rides and walks.
Track runs, rides and walks with GPS: splits, pace and the whole route on a map.
Sinew, your AI coach.
Ask anything about your training. Real answers from your own logs.
Deep analytics.
Compare any two periods, follow every exercise and its estimated one-rep max, and read every run.
Share what works.
Share your plans, routines and workouts. Anyone can open them, and copy them into Zefro.
90 days
AI workout builder.
Say what you want to train. AI builds the session from your last 90 days and your all-time bests.
Every week
A calorie target that learns.
Every week Zefro checks your intake against your weight trend and suggests a new target.
Food, training and cardio. One log. AI reads all of it.
Everything else
- Insights and a weekly report. Patterns across your food, training and body, summed up every week.
- Plans that run your week. A repeating cycle of training and food days. Each day waits for you on Today.
- Body tracking. Progress photos side by side, plus weight, waist, chest, hips, arms, thighs and neck.
- The small things. Water and steps, right on Today.
- Seven languages. English, Español, Français, Deutsch, Português, العربية and Türkçe.
Zefro+
Logging is free.
Zefro+ adds the AI and the deep analysis.
Yearly
$143.99 a year
About $12.00 a month. 7 days free.
Monthly
$17.99 a month
Cancel any time in your store account.
The yearly plan starts with 7 days free, then renews automatically at $143.99 a year. The monthly plan renews at $17.99 a month. Both renew until you cancel, in your App Store or Google Play subscription settings, at least a day before the renewal date. Purchases are final.
Replaces 2-3 apps.
Food logging, lifting and cardio tracking in one subscription, with AI that reads all of it.
Sinew, your AI coach
Chat with Sinew about your own logs, and have her build your workouts.
AI food logging
Describe a meal or photograph it, and AI logs it. Snap a nutrition label to fill a custom food.
AI insights
Insights on Progress, a weekly AI report and findings across food, training and body. Ask AI about your data.
Deep analytics
Compare periods, see everything on one timeline, and track each exercise with its estimated one-rep max.
Cardio analysis
Analyse each session, compare sessions and follow your training load.
Adaptive calorie target
Each week, a new calorie target suggested from your own results.
Sharing
Publish your custom foods to the public catalogue.
Meal repeats and day targets
Repeat meals on the days you choose, and set separate calorie and macro targets for training and rest days.
Fasting and gym tools
A fasting timer with its history, plus plate and warm-up calculators.