Privacy Policy

Last updated 9 August 2026

Trainastic is an AI strength-coaching app. This page explains exactly what we store, why we store it, who else sees it, and how to have it removed. It is written from the app's actual database, not from a template.

Who we are

Trainastic is operated as an independent project. For any privacy question, or to request access to or deletion of your data, email info@trainastic.com.

What we store

Data	Why
Email address and a hashed password	To identify your account. Passwords are stored only as a bcrypt hash.
Your name, if you give one	So the coach can address you.
Experience level, preferred language	To pitch the programming and converse in your language.
Injuries, physical limitations, goals, equipment	Free-text notes the coach keeps so it can train around your body. See Health information below.
Saved workouts	So you can run them again.
Training history: duration, whether you finished, your rating and any notes you add	To program around what you have recently trained and avoid overloading a muscle group.
Your device type, app version, and when it was last seen	To send the right update prompts and diagnose problems specific to a build.
Your conversations with the coach: what you wrote or dictated, what it replied, and the workout it produced	To improve the coach and diagnose bad answers. This is the most sensitive thing we hold; see Retention.
Technical usage records of AI requests (sizes, timings, cost)	To monitor reliability and running costs. These contain no message content.
Usage records: which features you use and when, whether a workout was started, finished or saved, your app version, device model and a random identifier for your installation	To see which parts of the app actually get used and where they fail. These contain no workout content, no coach messages and no health notes. You can turn this off in the app under Profile → App → Privacy.

We do notcollect advertising identifiers, we do not track you across other companies' apps or websites, and we do not sell or share your data for advertising. We do measure how our own app and website are used, through an analytics service hosted in the EU that receives no advertising identifiers — see below.

Health information

The coach asks about injuries and physical limitations, and you may mention health details in conversation. In the EU/UK this counts as a special category of personal data, and we rely on your explicit consent, given by choosing to tell the coach, to store and use it.

We use it for one purpose only: adapting your workouts so they are safe for you. You can withdraw consent at any time by asking the coach to remove a note, editing your profile in the app, or emailing us. Trainastic is not a medical service and does not provide medical advice.

Who else sees your data

We use a small number of suppliers to run the service. They act on our instructions and may not use your data for their own purposes.

An AI model provider. Your messages and the relevant parts of your profile are sent to a third-party AI service to generate workouts and replies. This includes the injury and goal notes above, because that is what makes the programming safe. The provider processes them to return a response.
Your phone's speech recognition. Dictation is handled by your device's own speech service (Google on Android, Apple on iOS). Unless you have installed offline recognition for your language, your speech may be sent to that provider to be transcribed. You can avoid this entirely by typing instead.
Hosting and app delivery. Our servers and database are hosted in the EU. App updates are delivered through a distribution service that sees only your device and update identifiers, so it can serve the right version.
Support tooling. If you send feedback from inside the app, the text of that report is stored in our private issue tracker so we can act on it.
A product-analytics provider. Records of how you use the app — which screens and features, when, your app version and device model, and a random identifier for your installation — are sent to an analytics service hosted in the EU. It receives no coach messages, no workout content, no injury or goal notes, no email address and no advertising identifiers. You can switch this off in the app.

If you want the current list of named suppliers, ask us at info@trainastic.com and we will tell you.

Retention

Coach conversations are kept for up to 90 days and then deleted automatically.
Your account, profile, workouts and training history are kept for as long as you have an account, so the app keeps working as intended.
Technical usage records of AI requests are kept longer for cost and reliability monitoring; they hold no message content.
Usage records held by our analytics provider are kept for up to 12 months.

Your rights

You can ask us for a copy of your data, ask us to correct it, or ask us to delete it. Email info@trainastic.com from the address on your account and we will action it within 30 days. There is a dedicated page describing deletion: Delete your data. Deleting your account also removes your profile from our analytics provider.

Separately, you can stop usage records being collected at any time without deleting anything: turn off Share anonymous usage data in the app under Profile → App → Privacy. Switching it off stops future collection; it does not by itself erase records already held, which you can request as above.

If you are in the EU/UK you also have the right to complain to your local data protection authority.

Security

Traffic is encrypted in transit (HTTPS). Passwords are stored only as bcrypt hashes. Administrative access to conversation data is restricted, requires a separate account from any app account, and every administrative change is logged.

Children

Trainastic is not intended for children under 16, and we do not knowingly collect their data.

Changes

If this policy changes materially we will update the date at the top and, where the change is significant, tell you in the app.