Your AI nutrition coach in your pocket
Change your eating without effort
No diets. Just observe your metrics, and your eating improves naturally. With an AI nutritionist who knows your day and guides you through every meal.
2 weeks free · Then €12.99/month · No credit card for trial
Speaks your language
The problem isn't the food. It's the effort.
What if you didn't need a diet? No restrictions, no meal plans. Just start observing what you eat, like an athlete observes their training. What gets measured gets managed.
Traditional apps
Search every food. Pick portions. Confirm. Every meal. Every day. Most people give up within weeks.
ChatGPT / Direct AI
Good one-off advice, but tomorrow it won't know what you ate today. No profile, no goals, no reminders. Every conversation starts from scratch.
Nothing
You want to take care of yourself, but everything is too complicated or boring. So you do nothing.
ChatGPT gives advice. Señor Bistec knows you and guides you.
How it works
Log your meal
Send a photo or text. "Had soup and bread." Señor Bistec calculates calories and macros instantly.
Get your progress
After every meal you see where you stand for the day. At 7 PM you get your daily summary. On Sundays, your weekly report.
Never quit
Custom reminders, day streaks, unlockable achievements, and a tone that never judges. The system works so you don't have to.
Ask anything
Not just a calorie counter. Your personal nutritionist who knows your day.

Everything you need
Photo or text
Send a photo or type "I had salad and chicken." The bot analyzes and logs instantly.
Real-time progress
After every meal you see where you stand vs your daily goal. Calories, protein, fat, carbs.
Summaries and reports
At 7pm your daily summary arrives. Sundays, a weekly report with trends and recommendations.
Smart reminders
Personalized to your schedule. The bot comes to you, not the other way around. If you forget, it doesn't.
Streaks and achievements
12 unlockable badges. Daily streaks with a freeze earned every 7 days.
No judgment, real personality
Warm, direct tone with humor. Never scolds you. Detects your language automatically.
A week with ChatGPT vs a week with Señor Bistec
The difference isn't the AI. It's the system.
Sent a photo of my breakfast to ChatGPT. "Approximately 450 kcal, 30g protein." OK. Closed the chat.
Sent the photo on Telegram. "Oatmeal with banana and nuts — 420 kcal, P18g F14g C58g Fiber5g. Today: 420/2000 kcal. Good start, a bit low on protein — add some meat at lunch 💪"
Forgot to ask at lunch. In the evening I wrote "what did I eat today?" ChatGPT: "I don't have that information." OK, I dropped it.
At 1 PM a reminder came in: "Lunch? Send a photo or tell me what you ate." At 7 PM the summary arrived: "Today 1450/2000 kcal, protein on target, fiber low — try more veggies tomorrow."
Didn't open it in 2 days. Well, maybe I'll start again next week.
The usual morning reminder came in — the bot didn't forget about you, even if you forgot about it. "Today you're at 650/2000 kcal. No logs yesterday — no worries. Let's get today going."
I don't even remember what I asked on Monday. No big picture. I quit.
The weekly report arrived: calories per day, weight trend, patterns, actionable recommendations. "This week you ate light at lunch — try adding a snack. Overall, good week, real progress."
Achievements that keep you going
12 achievements to unlock. From your first meal to a full year. Every 7-day streak earns you a freeze to protect your progress.
First Step
One Week
Habit
One Month
Bullseye
One Year
Frequently asked questions
Why not just use ChatGPT? It's free.
How accurate is the photo analysis?
What if I skip a few days?
How much does it cost?
What languages does it support?
Telegram or WhatsApp?
Start today. 2 weeks free.
No apps to download. No forms to fill. Just send a message.