Privacy policy

Effective from: 12 November 2026 · Applies to the dogtice.com website and the Dogtice mobile app for Android (com.dogtice.app).

1. Controller

The controller of personal data is:
Martin Petráček (sole trader)
Company ID (IČO): 73998907
Place of business: Na Tržišti 23, 509 01 Nová Paka, Czech Republic
E-mail: [email protected]

We have not appointed a data protection officer, as this is not required for the scope of our processing. Please send any questions to the e-mail address above.

2. Progress and settings – only on your device

The app stores on your phone: your learning progress (practised breeds, correct and wrong answers, confused breeds), XP, credits, day streak and number of rounds, settings (language, difficulty, breed scope, vibration, statistics sharing), the photos you have hidden or reported, the date of first launch (for the first ad-free days), the number of ads shown today and whether you own the full version. Your uploaded photos and rights claims are also kept on the device until they have been sent.

• Purpose and legal basis: to make the app work as you installed it (Art. 6(1)(b) GDPR). We do not send this data to our server and have no access to it.
• How long: until you delete it, by uninstalling the app or via Settings › Apps › Dogtice › Storage › Clear data (names vary by manufacturer).
• Android backup: if backup to your Google Account is turned on, Android may back up app data, including Dogtice, to your Google Account. This service is run by Google according to your settings; we have no access to these backups.

3. Backup and transfer of progress

On the Back up and transfer screen you can create a backup file or text code. It contains only your progress and settings; uploaded photos, reports, claims and purchase information are not included. The file or code is created on your phone and you decide where to save it or whom to send it to. Nothing is sent to us. The full version is restored through your Google Play account with Restore purchase.

4. Anonymous photo statistics

To find photos that are confusing or wrong, the app sends our server aggregated counts per photo after rounds: the photo ID, the type of shot (e.g. side view), the quiz mode, the difficulty, how many times the photo was shown and how many times it was identified correctly. On the server these numbers are only added to the running total for the photo. No device ID, advertising ID, account or anything else that could identify you or individual answers is sent.

Sharing is on from installation; turn it off in the app under Settings › Share anonymous statistics. Once it is off, nothing more is counted or sent.

5. Reporting a photo

When you report a photo (wrong breed, poor quality, inappropriate image), the breed ID, photo ID, reason and app version are sent. Nothing else: no device ID and no contact. The photo is hidden for you straight away. We use reports only to check photos and delete them after 12 months at the latest.

6. Rights claim for a photo

If you are the author of a photo, represent a rights holder, the photo shows you or your dog, or you have another reason, you can file a claim in the app. The photo and breed ID, your role, an explanation (up to 1,000 characters), a good-faith declaration and, optionally, your e-mail address are sent. The photo is hidden for all app users immediately and we review the claim. We use the e-mail only to handle the claim and never publish it; without it we cannot contact you and the photo stays removed.

• Legal basis: our legitimate interest in resolving the claim and protecting the rights of others (Art. 6(1)(f) GDPR).
• How long: while the claim is handled and then up to 3 years in case of a dispute.
• Please do not include more personal data in the explanation than necessary.

7. Your own dog photo

On a breed page you can add your own photo from the gallery or take one with the camera. The app asks for camera permission only when you choose to take a photo. Before sending, the app resizes the photo on your phone (max. 1,600 px) and converts it to JPEG; this removes metadata, including GPS location. The preview shows exactly what will be sent.

What is sent: the photo, the breed, your confirmation that you are the author and agree to the CC BY-SA 4.0 licence, an optional nickname (max. 30 characters) and an optional contact e-mail. The photo is stored in non-public storage and nothing is published automatically. If a moderator approves it, we publish it in the app (and possibly on dogtice.com) under the CC BY-SA 4.0 licence, credited to your nickname. The e-mail is never published; we use it only if someone files a claim against your photo.

• Legal basis: publication of the photo under the licence you grant us (Art. 6(1)(b) GDPR); the contact e-mail on the basis of your consent (Art. 6(1)(a) GDPR), which you can withdraw at any time by e-mail.
• How long: a rejected photo is deleted as soon as we decide, and the remaining data (nickname and e-mail) within 30 days; a photo we have not reviewed within 60 days is deleted together with its data no later than 90 days after it was sent. Approved photos and the e-mail are kept for as long as the photo is published. On request we remove the photo from the app and website. We cannot remove copies that others have made under the CC BY-SA licence in the meantime.
• Please do not send photos in which people, their homes or car number plates can be recognised.

8. Our server (Supabase)

We store the data from sections 4 to 7 with Supabase, Inc., which acts as our processor. The database and storage are located in London (United Kingdom). The server deletes old records automatically within the periods stated above. We do not store IP addresses, device IDs or any account in our tables, only the data listed above and the time of the record. However, the server provider may technically process IP addresses and request data in operational logs for running the service and preventing abuse. The app also downloads a public list of added and removed photos from the server; no data about you is sent in doing so.

9. Ads (Google AdMob)

The free version shows ads from Google AdMob (Google Ireland Limited): a banner on the home screen and in round results and, occasionally, a full-screen ad between rounds, never in the middle of a question. No ads are shown during the first few days after installation. Before the first ad, users in the EEA, the UK and Switzerland see Google’s consent form. You can change your choice under Settings › Ad privacy choices.

Google may process your device’s advertising ID, IP address, device information and how you interact with ads. Personalised ads are shown only with your consent; otherwise non-personalised or limited ads are shown. For personalisation, Google acts as an independent controller. See How Google uses information from sites or apps that use its services and the Google Privacy Policy. You can reset or delete the advertising ID in Android settings (Settings › Privacy › Ads; names vary). We receive no data about you from Google, only aggregate reports about ads shown.

A rewarded ad for credits starts only when you ask for it (max. 3 per day). Credits are added on your device only. The full version shows no ads.

10. Full version purchase and promo codes

The full version is a one-time purchase through Google Play. Payment is handled entirely by Google; we never see your payment details. The app only asks Google Play whether you own the full version (on launch and when you return to the app) so that it can unlock it, including after reinstalling. From Google we receive only the data needed to record sales and for accounting (e.g. order number, product, price, country and date) and keep it for as long as accounting and tax law requires (usually 10 years). Legal basis: performance of a contract and legal obligation (Art. 6(1)(b) and (c) GDPR). Purchases are subject to the Google Privacy Policy.

Promo codes are redeemed in the Play Store; the app only opens the Google Play page with the code pre-filled. The code is therefore processed by Google, not by us.

11. Permissions and what we do not use

• Internet: for ads, purchases, photo statistics and sending what you choose to submit. Otherwise the quiz and encyclopedia work offline.
• Camera: only when you decide to take a photo of a dog to submit. The app opens the gallery through the system photo picker, so it sees only the photo you pick.
• Vibration for answer feedback (can be turned off) and Google Play Billing for purchases.
• The app does not use location, contacts or the microphone.
• We have no user accounts, use no third-party analytics or tracking tools (no Google Analytics, Firebase Analytics, Facebook SDK etc.) and send no push notifications. We do not sell data.

12. The dogtice.com website

The website is static: it has no accounts and uses no cookies, analytics or ads, so it has no cookie banner. The demo quiz runs only in your browser and its results are neither sent nor stored anywhere. Your choice of light or dark theme is stored only in your browser storage (localStorage) and is not sent anywhere. The website is hosted by Cloudflare, Inc., which may briefly process technical access logs (IP address, time, page, browser type) for operational and security reasons. Legal basis: legitimate interest in operating the website securely (Art. 6(1)(f) GDPR). Links to photo sources lead to other websites (e.g. Wikimedia Commons) with their own policies.

13. When you write to us

If you send us an e-mail (e.g. about a photo or a question), we process your address, your name if you give it, and the content of the message in order to reply. Legal basis: our legitimate interest in answering enquiries (Art. 6(1)(f) GDPR) or handling your request. We keep correspondence while it is being handled and for up to 2 years after the last message; if it concerns a rights claim or a complaint about a purchase, for up to 3 years.

14. Children

Dogtice is intended for adults interested in dogs. Neither the app nor the website is intended for children under 15 (the age of digital consent in the Czech Republic; under 13 where that is the applicable age), and we do not knowingly collect personal data from them. If you find that a child has sent us a photo, an e-mail or other personal data, write to us and we will delete it.

15. Transfers outside the EU

Google and Cloudflare may process data outside the EU, in particular in the USA. Such transfers comply with the GDPR, based on the EU–US Data Privacy Framework or standard contractual clauses. Data on our Supabase server is stored in the United Kingdom, for which the European Commission has decided that it ensures an adequate level of data protection (Art. 45 GDPR); if its US parent company accesses it (e.g. for technical support), standard contractual clauses apply.

16. Your rights

You have the right to access your data, to have it corrected or erased, to restrict processing and to data portability, the right to object to processing based on legitimate interest and the right to withdraw consent at any time. Just write to [email protected]; we will reply within one month.

As we have no accounts and anonymous data cannot be linked to a specific person, please help us identify a claim or uploaded photo (e.g. with the e-mail you gave or a description of the photo). We do not have the data stored only on your device, but you can delete it yourself at any time (see section 2).

If you believe we handle your data incorrectly, you can lodge a complaint with the Czech Office for Personal Data Protection (Úřad pro ochranu osobních údajů), Pplk. Sochora 27, 170 00 Prague 7, or with the supervisory authority in the country where you live.

17. Changes to this policy

If the way we process data changes (e.g. we add a new feature), we will update this page and the effective date. We also mention significant changes in the app update notes.