About EntrenAI
EntrenAI is a training app for iOS and Android that builds one plan for everything you train: 12 sports coordinated so they do not get in each other's way, adjusted every morning to your sleep and fatigue. It is made by Iván López Martín, an aerospace and AI engineer based in Madrid. It launched in May 2026.
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At a glance
| What it is | A training app with one plan for several sports |
|---|---|
| Platforms | iOS (App Store) and Android (Google Play) |
| Launched | May 2026 |
| Sports | 12: hypertrophy, general strength, powerlifting, speed and power, running, cycling, swimming, triathlon, duathlon, HYROX, hybrid training and physical tests for Spanish public exams (oposiciones) |
| Languages | Spanish and English |
| Price | Free to start. EntrenAI Pro, the personalized plan: €7.99/month or €23.99/year, with a 7-day trial |
| Made by | Iván López Martín, Madrid |
| Contact | soporte@entrenai.app |
What EntrenAI is
Anyone who trains more than one thing (strength and running, a triathlon, HYROX, a physical-test exam) usually ends up with one app for each and with plans that know nothing about each other. EntrenAI starts from the opposite idea: one plan for everything you train, which spreads the week so that strength work does not ruin the long run, which knows how you slept and how much fatigue you are carrying, and which does not fall apart the day you cannot train.
The 12 sports are hypertrophy, general strength, powerlifting, speed and power, running, cycling, swimming, triathlon, duathlon, HYROX, hybrid training and physical tests for Spanish public exams (oposiciones). Each one has its own plan page, with examples of real weeks from the engine.
Who makes it
EntrenAI is made by Iván López Martín, based in Madrid. He is an aerospace and AI engineer (he studied at the Universidad Politécnica de Madrid), and the home page sums it up as "made by an athlete-engineer, not a marketing team". The first version was released on the App Store on May 6, 2026.
You can follow him on Instagram, LinkedIn and on his YouTube channel, where the app's presentation video is.
How your plan is calculated
The plan is not written by a language model: it is calculated by an in-house rules engine built on training science. It builds one week at a time, in five-week cycles with a deload week, and takes into account how the previous week went, how far away your race is and when a test is due. It applies race paces from your VDOT (Daniels), power zones from your FTP, polarized 80/20 distribution in endurance sports, volume and frequency by level in strength work, and rules so that strength and cardio do not get in each other's way. Each sport's plan page explains the evidence it is built on.
Every morning you do a quick check-in on sleep, stress and fatigue, and the engine raises or lowers the day's load. If you skip a session, it rearranges the week without breaking the block.
Language models (generative AI) are used in four places: to read the free-text notes in your check-in, such as a pain or a bad day, and turn them into data for the engine; to write the comment you get after each session; to write the analysis of your progress; and to answer questions in the in-app assistant. Loads and paces are calculated by the engine, not by the model.
What is free and what is paid
Free, forever and with no card: free workout logging for any session, an exercise catalog with video, set tracking, history and calendar, streaks, leagues and ranking, achievements, a profile with your records, a social feed and publishing to Strava.
EntrenAI Pro is the personalized plan that adapts every day to how you feel, with analytics, charts and integration with Apple Health and Health Connect. It costs €7.99/month or €23.99/year. When you create your account you get 7 days of Pro as a trial with nothing to pay; after that you choose whether to stay free or subscribe. You cancel in two taps from the app or from your account on the website, with no lock-in, and you keep access until the end of the paid period.
Your data
EntrenAI complies with the GDPR: you can export all your data or delete it at any time from the app, and no data is sold to third parties. The details are in the privacy policy.
Contact
Support: soporte@entrenai.app. Privacy: privacidad@entrenai.app. Messages are answered within 24 hours on business days. There is also a help center.
Do not confuse it with others
EntrenAI (entrenai.app) is an independent app and has no relationship with other apps or websites with a similar name. You will recognize it by the name "EntrenAI" on the App Store and on Google Play, and by this website, www.entrenai.app.
Frequently asked questions
EntrenAI is made by Iván López Martín, an aerospace and AI engineer based in Madrid. The first version was released on the App Store on May 6, 2026.
The plan is calculated by an in-house rules engine built on training science. Generative AI is used to read your check-in notes and turn them into data for the engine, to write the comment after each session and the analysis of your progress, and to answer questions in the in-app assistant; it does not decide your loads or your paces.
To start, yes: free workout logging, set tracking, history, leagues and the feed cost nothing. The personalized plan, EntrenAI Pro, costs €7.99/month or €23.99/year, with a 7-day trial when you create your account.
In two taps, from the app or from your account on the website; if you pay with Apple, from your iPhone subscriptions. There is no lock-in and you keep access until the end of the paid period.
Spanish and English, on iOS (App Store) and Android (Google Play).
Try it yourself
Download EntrenAI and tell it what you train: free workout logging costs nothing.