Privacy Policy

In short

• Nothing is collected until you agree. Each app asks you when you first start it, and nothing is pre-selected.
• One choice covers both usage statistics and crash reports. You can change it at any time in Settings.
• The games work fully offline. There is no account, no advertising and no in-app purchase.
• We never store your IP address. We do not use advertising IDs or device IDs, and we do not collect your name, e-mail address, location or anything you type.
• We do not sell your data.

Who is responsible

Green Game Studio is responsible for the data described in this policy. You can reach us at contact@greengamestudio.com.

The apps this policy covers

This policy covers the five games listed below. They are offline single-player games: there is no account, no advertising and no in-app purchase, and they work without an internet connection.

• Collapse Four
• Sealed Bet Poker
• Drifting Fleet
• Draft Backgammon
• Rising Tide Chess

Everything is off until you agree

When you start an app for the first time, it asks what you want. Nothing is pre-selected, and you can use the app fully whatever you choose. If you decline, nothing is sent, not even the fact that you declined.

Your answer is one choice that covers both of the following:

• Usage statistics: anonymous information about how the app is used, such as which difficulty is played and how long a game lasts.
• Crash reports: technical information sent when the app crashes, so that we can fix the problem.

Usage statistics: what we store

If you agree, the app creates a random install ID at that moment. It is not derived from your device, your account or anything else about you. The app then sends small batches of events to our own server. For each event we store:

• the random install ID, and a second random ID for the event itself, which only lets us ignore an event that arrives twice
• which of the five apps sent it, and its version and build number
• your platform (Android or iOS), the major version of the operating system, and whether the device is a phone or a tablet
• the language setting of the app
• the name and time of the event, for example app opened, game started, game finished, tutorial step reached, hint used, setting changed or non-fatal error
• the values that belong to the event: the difficulty, who moves first, the result (win, loss or draw), the number of moves, the duration, the number of hints used, the tutorial step, which setting you changed and its new value, and a short code and place label for a non-fatal error

What we do not collect

Your IP address is visible to our server while it answers a request; that is how the internet works. We do not store it and we keep no access log. To stop abuse, the server counts requests in its memory using a one-way scrambled form of the address, with a salt that changes every day and is never saved. Nothing of this is written to disk. We also do not collect:

• advertising IDs or device IDs
• your name, your e-mail address or any account
• your location
• any text you type

Crash reports

If you agree, the app also uses Google Firebase Crashlytics. When the app crashes, Crashlytics collects the crash stack trace (the technical record of where the program failed), the state of the app at that moment, the device model and operating system version, and an installation UUID that Crashlytics creates.

Google Ireland Limited and Google LLC process this data on our behalf. Crash reports are collected only after you agree, and they are not sent to our own server.

Where your data is processed

Usage statistics are stored and processed only on our own server, which we rent from Hetzner Online GmbH as our hosting provider.

Crash reports are processed by Google, as described above. Google may process them in other countries, including the United States; Google's Firebase terms describe the safeguards it applies.

How long we keep data

Raw usage events are kept for 90 days. After that they are deleted and only anonymous daily totals remain: counts and sums per day, app, app version, platform, language and event type (with a few event values such as the difficulty or the result), without any install ID.

An install record (the install ID with the first and the last day it was seen) is deleted when the install has not been seen for 180 days.

The server also keeps daily backup copies for about two weeks. Data that has been deleted disappears from them when they expire.

Google keeps crash reports for a limited time under its own retention rules.

Legal basis

We process usage statistics and crash reports only on the basis of your consent (Article 6(1)(a) GDPR). You can withdraw your consent at any time, and doing so has no disadvantage for you: the apps work exactly the same. Withdrawing does not affect the lawfulness of what was done before.

Changing your mind

In Settings you can turn the sharing of usage statistics and crash reports on or off at any time. It is one switch for both.

When you turn it off, the app deletes the install ID from your device, together with every event that has not been sent yet, and stops sending crash reports. The ID was random and is now gone, so the events we already stored can no longer be linked to you or your device. They are deleted automatically after the periods described above.

If you turn it on again, the app creates a new random install ID that has no connection to the old one.

Crash reports that were already sent stay with Google until they expire under Google’s own retention rules.

Your rights

You have the right to ask us for access to your data and for its erasure, to object to its processing, and to withdraw your consent. You also have the right to complain to a data protection supervisory authority, for example in the country where you live or work.

We do not know who an install ID belongs to, so we cannot look up the data of a particular person. Stored events are deleted automatically as described above, and when you turn sharing off the app deletes the ID from your device so the events can no longer be linked to you. If you have a question or a request, write to contact@greengamestudio.com.

Children

The apps are not directed at children under 13, and we do not knowingly collect data from children. Nothing is collected unless the person using the app agrees, so a child who declines or never answers sends us nothing. If you believe that data of a child has reached us, write to contact@greengamestudio.com.

No sale and no sharing

We do not sell your data and we do not share it with advertisers or data brokers. The only parties that handle it are our hosting provider and, for crash reports, Google, as described above.

Changes to this policy

We may update this policy, for example when an app starts to collect something new. The date at the top shows when it last changed. Where the law requires it, we will ask for your consent again.

Contact

Questions about this policy or about your data? Write to Green Game Studio at contact@greengamestudio.com.