This page explains what Mythonauta for Android does with your data: what it reads, what for, who else touches it and how to delete it. In short: your steps stay on your phone, and the only thing that can leave it is your approximate location, if you turn on real weather.
It applies only to the Mythonauta app for Android. The iPhone app, the website mythonauta.com and the newsletter have their own privacy policy. The details of the data controller are at the end, in section 08.
01The essentials, at a glance
- Your steps stay on your phone. What the app reads from Health Connect (the distance you walk and, on a day with no distance, your steps) never reaches any server.
- Your location leaves only if you want it to, and for one thing only: to find out what the weather is where you are. If you turn on “Real weather in the sky”, it is rounded to about 10 km, sent to MET Norway for the forecast, and not stored.
- There are no accounts and no servers of our own. There is nothing at the other end in which to keep your data.
- No analytics, no advertising, no tracking. No advertising ID, no crash reporting, no cloud backup.
- Personal data is never sold to third parties. Not ever.
- Health Connect data is not used for advertising, is not shared and is not used to build profiles.
02What data the app uses, and why
Mythonauta for Android uses Android’s and Google’s own libraries: Jetpack (Compose, Room, DataStore, WorkManager, Glance), Health Connect, Google Play Billing and Play Asset Delivery. It includes no Firebase and no SDK for analytics, advertising, attribution, tracking or crash reporting. There is no backend of our own.
2.1. Distance and steps (Health Connect)
Mythonauta asks permission to read two types of data from Health Connect: distance and steps. Steps are used only on a day with no recorded distance, to estimate it. The sole purpose is measuring your progress along the narrative route and unlocking the corresponding chapter. No other Health Connect data is read, and the app writes nothing to it.
In the background, only if you allow it. If you grant background reading, the app reads the day’s total about once an hour while it is closed, so it can tell you with a local notification when you reach a chapter. If you do not grant it, the app reads only when you open it.
It stays on your phone. The app keeps the daily totals in its local database, on the phone. They are not transmitted to IlustresAnónimos or anyone else, and they are never sold, shared or used for advertising or to build profiles.
Limited Use. The use of information received from Health Connect will adhere to Google Play’s health permissions policy (Health Connect), including the Limited Use requirements.
You can revoke access at any time in Health Connect’s settings, under
App permissions › Mythonauta. The “Open Health Connect” button in Mythonauta’s settings takes you
there. If you do, the app stops recording new progress; whatever you have already unlocked stays
unlocked.
Walking distance and step count are, in the abstract, data concerning health. But because they remain entirely on your phone and are never accessible to the controller, IlustresAnónimos carries out no processing of health data within the meaning of Art. 4(2) GDPR, and does not act as controller of that data under Art. 4(7). None of the situations in Art. 9 GDPR therefore arises.
2.2. Location and weather (MET Norway)
Real weather is optional and off by default. Only if you turn on “Real weather in the sky” in Settings does the app ask for the approximate location permission and look up the forecast for your area, which tints the sky of the story: if it rains where you walk, it rains in the tale. It never asks for precise or background location.
Where it goes. Before they leave the phone, the coordinates are rounded
to one decimal place, about 10 km, and sent encrypted (HTTPS) to the weather API of
MET Norway, the Norwegian Meteorological Institute (api.met.no), which
returns the forecast. They are used for that and nothing else. As with any request over the
internet, MET Norway also receives the IP address it comes from.
What does not happen. IlustresAnónimos does not receive your location or store it. Nor does the app: it keeps only the forecast, in memory, for half an hour at most. The location is not used to calculate your progress, nor for advertising, nor for profiling, and it is not sold or disclosed to anyone.
MET Norway acts as an independent controller for that request, under its terms of service. The weather data you see in Mythonauta for Android comes from MET Norway.
Your control. You can turn “Real weather in the sky” off at any time, or revoke the location permission in Android’s settings. Everything else carries on as before: the sky of the story goes back to following the time of day.
Legal basis: your consent (Art. 6(1)(a) GDPR), given when you turn the option on and grant the permission, and which you can withdraw whenever you like without affecting the lawfulness of prior processing.
2.3. Purchases and drawings (Google Play)
Purchases are processed entirely through Google Play, by means of Google Play Billing. IlustresAnónimos does not receive, see or store your payment details: Google acts as an independent controller, under its privacy policy. The app asks Google Play what you have bought with your Google account and keeps the answer on the phone. IlustresAnónimos receives from Google only aggregate sales information, which does not identify individual buyers.
The drawings of the paid routes come from Google Play (Play Asset Delivery), like any download from the store. They pass through no IlustresAnónimos server.
2.4. Notifications and reading aloud
Mythonauta’s notifications are scheduled and generated on your phone. The app uses neither Firebase Cloud Messaging nor any other remote push service, and nobody knows which notifications you receive or when. You can turn them off in Android’s settings, under Mythonauta’s notifications.
If you ask for a chapter to be read aloud, the app uses your phone’s text-to-speech engine and shows the notification Android requires while audio plays. Mythonauta sends the text to no server of its own.
2.5. No accounts, no analytics
Mythonauta requires no registration. No account is created, no email address or password is requested, and no identifier is generated that would link use of the app to a person. The app does not declare the advertising ID permission and collects no usage statistics or crash data.
Google collects on its own account, as an independent controller, aggregate install and crash statistics shown in Google Play Console. IlustresAnónimos sees that information only in aggregate and anonymous form.
2.6. Your data on the phone, and how to delete it
Your progress, your journal, your achievements, the daily distance totals and your preferences
are kept only on your phone. You can delete all of it from the app itself, in
Settings › Your Data › Delete All Data. Purchases are not deleted: they belong to your
Google account and can be restored.
The app makes no cloud backup of its data: if you uninstall it or change phones, your progress does not travel with it. If you export your journal or share a card, it leaves the phone only for the app you choose.
2.7. Permissions it asks for
- Health Connect: reading distance and steps and, if you grant it, reading them in the background.
- Approximate location: only if you turn on real weather.
- Notifications: to tell you about chapters.
- Technical permissions: internet access, Google Play purchases, the foreground service that reads aloud, and the one Google Play uses to download the drawings.
It asks for no precise or background location, and no camera, photos, microphone, contacts or storage.
03Who else touches your data
| Who | Role | What it processes | Where |
|---|---|---|---|
| Independent controller | App distribution (Google Play), purchases (Google Play Billing), downloads of the drawings (Play Asset Delivery), aggregate Google Play Console statistics | USA / Ireland | |
| MET Norway | Independent controller | Weather request, if you turn it on: coordinates rounded to about 10 km and the IP address of the request | Norway (EEA) |
Neither is a processor acting for IlustresAnónimos: each processes that data under its own terms. The app has no other providers: no purchase intermediary and no backend of our own. The list above is complete.
04International transfers
IlustresAnónimos makes no international transfer of the app’s data, because it receives none. Purchases and downloads are processed by Google as an independent controller, under its own safeguards. MET Norway is in Norway, inside the European Economic Area: the weather request does not leave the EEA.
05How long data is kept
| Data | Period |
|---|---|
| Health Connect distance and steps | Under your control: the daily totals stay on your phone until you use “Delete All Data” or uninstall the app. The source data stays in Health Connect, which you manage. IlustresAnónimos keeps no copy, because it never receives it. |
| Location for the weather | Not retained. The rounded coordinates exist only for the duration of the request to MET Norway. The forecast is kept in memory for half an hour at most. Retention by MET Norway is governed by its own terms. |
| Progress, journal and preferences | On your phone, until you delete them or uninstall the app. |
06Your rights
You have the rights of access, rectification, erasure, objection, restriction and portability, and you may withdraw your consent at any time. Since the app sends none of your data to IlustresAnónimos, almost everything is done on the phone itself: “Delete All Data” in the app, the Health Connect permissions and the location permission. For anything else, write to victor@mythonauta.com. You will get a reply within one month at the latest, free of charge.
If you believe your rights are not respected, you may complain to the Agencia Española de Protección de Datos (the Spanish Data Protection Agency).
07Minors
The app collects no data that identifies whoever uses it, whatever their age. The data it reads from Health Connect does not leave the phone.
08Controller, applicable law and changes
| Controller | Víctor García Castañeda, trading as IlustresAnónimos |
| Contact | victor@mythonauta.com |
| Website | mythonauta.com |
Applicable law: Regulation (EU) 2016/679 (GDPR) and Spanish Organic Law 3/2018 (LOPDGDD).
This policy may be updated when the app or the law changes. The version in force will always be the one published on this page, with its date of last update.
It is written in Spanish. This English text is a translation offered to aid understanding; in the event of any discrepancy, the Spanish version prevails.