Dercy terms and privacy policy

Dercy app terms of use

Revision of 13 September 2026. Supersedes the revision of 10 August 2026.

1. What this document is

This is an agreement between you and the developer of the Dercy app. By installing and using the app you confirm that you have read these terms and agree to them. If you do not agree, do not use the app and remove it from your device.

Developer and rights holder: sole proprietor Mikhail A. Grigoriev (OM-Digital brand), INN 772601582696, OGRNIP 326774600507616. VAT is not charged: the special tax regime “Automated Simplified Taxation System” applies (Federal Law No. 17-FZ of 25.02.2022).

With regard to the subscription payment described in Section 4, this document is a public offer (Art. 437 of the Civil Code of the Russian Federation): it is accepted at the moment you pay for the subscription in the app.

2. What Dercy is

Dercy is an app for dog owners. The dog profile, diary, knowledge base on care, upbringing and training, breed picker and reminders work entirely on your device, without an internet connection — nothing has changed here.

In addition, the app has two sections with a live AI assistant — “Pocket Trainer” (questions about behaviour and upbringing) and “Pocket Vet” (an initial assessment of your pet’s condition from a description and photo). These two sections require an internet connection: your question, a photo of the dog where needed, and the dog’s profile data from the diary (if you filled it in) are sent to our server and processed by a third-party artificial intelligence service to produce an answer. Details are in the Privacy Policy, Section 3.

The basic part of the app (without the AI sections) is provided free of charge and without a time limit. One consultation in each AI section is free; further access to both sections is unlocked by a paid subscription (Section 4).

3. Right of use

You receive a simple non-exclusive right to use the app on your devices for personal, non-commercial purposes — without territorial restriction, for as long as this revision of the agreement is in force (for the paid AI sections — for as long as the paid subscription is active).

You may not: copy, sell, rent out or distribute the app and its content; modify, decompile or reverse-engineer the code; pass off the app’s materials as your own; use them to create a competing product; use the AI sections to obtain answers unrelated to dogs, or attempt to bypass the AI assistant’s topic restriction set in the app.

The texts, illustrations, design and structure of the knowledge base belong to the rights holder.

4. Subscription to the AI sections

Price and term. 399 ₽ for 30 days of access to both AI sections with no limit on the number of consultations.

One-off payment, no automatic charges. The subscription is NOT renewed automatically and is not linked to a saved card. After 30 days, access to paid consultations is restricted (the free diary, knowledge base and breed picker sections keep working without limits); to continue using the AI sections you pay for a new period yourself, as a separate payment in the app.

How to pay. Payment is made via the YooKassa payment service (bank card). Card details are entered on the YooKassa side; they are not passed to the app or the developer and are not visible to them.

Receipt. YooKassa sends a fiscal receipt to the email address you provide at payment, in accordance with Federal Law No. 54-FZ of 22.05.2003. Payment is technically impossible without an email — a receipt is mandatory for every transaction.

Cancellation and refund. You may cancel the subscription within 14 calendar days of payment if you have not actually used the paid access beyond the free consultation (Art. 32 of the Russian Consumer Protection Law — the consumer’s right to withdraw from a service before it is completed, paying only the costs actually incurred; with no use at all, such costs are zero). If the paid access was partly used, the refund is pro rata to the unused remainder of the subscription term (less the days of the 30-day period already elapsed). To request a refund, write to the email in the “Contacts” section, stating the payment date and the email used at payment. The money is returned to the card used for payment within the period YooKassa sets for refunds (usually up to 10 business days).

Price changes. The developer may change the subscription price for new payments; a period already paid for is not affected.

5. The app does not replace a vet or a dog trainer

This is the most important condition, and we ask you to read it in full.

All of Dercy’s content — the knowledge base, recommendations on feeding, upbringing and training, the breed picker, the AI assistant’s answers in the “Trainer” and “Vet” sections, any tips and hints — is informational and educational. It is not veterinary care, not a diagnosis, not a prescription and not an individual consultation with a dog trainer, even if the answer is detailed and confident.

Neither the knowledge base nor the AI assistant knows your particular dog the way a specialist does at an in-person examination: they cannot palpate, auscultate, take tests or see what can only be seen live. The AI assistant’s answer is built from your text description and, where provided, the photo you sent — it does not replace diagnostics.

Therefore:

• at any sign of illness, injury, poisoning or a sudden change in behaviour, and in any emergency, see a veterinary surgeon in person rather than the app;
• make decisions about treatment, vaccination, diet and neutering only together with a vet;
• for aggression, anxiety, biting and other behavioural problems, see a trainer or an animal behaviourist in person;
• responsibility for the animal’s health, keeping and behaviour, as well as for harm caused by the animal to third parties, remains with the owner — no hint from the app or the AI assistant changes that.

6. Warranties and liability

The app and the AI sections are provided “as is”. We have tried to make the content reliable, but we do not guarantee that every recommendation (including those generated by the AI assistant) will suit your particular dog, that the app and the server side will work without errors or interruptions, or that following the advice will produce the result you expected. The AI assistant’s answer is generated automatically from your description and may be inaccurate, incomplete or wrong.

To the extent permitted by law, the rights holder is not liable for losses or lost profit arising from the use or inability to use the app (including temporary unavailability of the AI sections due to failures on our side or on the AI service provider’s side), or from applying information from the knowledge base or the AI assistant’s answers on your own without consulting a specialist.

This limitation does not affect liability that cannot be excluded or limited by law — including liability for harm to life and health caused through the rights holder’s fault, and consumer rights under the legislation of the Russian Federation, including the right to a refund for the paid and unused part of the subscription (Section 4).

7. Your data and its safety

Diary entries, the dog profile, vaccination records and breed picker results are stored on your device — we have no access to them and cannot restore them.

Separately, the text and photos you send in the “Trainer” and “Vet” sections are briefly transmitted to our server to obtain the AI assistant’s answer — the details, and exactly what we do NOT store, are in the Privacy Policy, Section 3.

Some practical rules follow from this:

• uninstalling the app also deletes all your local records — profile, diary, reminders; the chat history with the AI assistant is stored nowhere except the current dialogue screen on your device, and is also lost when the app is uninstalled;
• if the device is lost, broken or replaced, local data does not transfer by itself; keep anything important separately if it matters to you;
• access to a paid subscription is tied to the device (via a technical installation tag) and survives reinstalling the app on the same device, but does not transfer to another device.

8. Reminders

The app's reminders are a supporting tool, not a guaranteed alerting service. Android may delay a notification or not show it at all: in battery-saving mode, under background restrictions, with notifications switched off, or after the app has been force-stopped. Do not rely on reminders where missing one matters (medication, a scheduled operation) — back them up the way you normally would.

9. Updates and changes to the terms

The app may be updated: features are added, changed and removed. We may change this agreement — the current revision, with its date, is always available in the “About the app” section. By continuing to use the app after an update, you accept the new revision. If you disagree, uninstall the app. A change of terms does not cancel the right to a refund for a subscription period paid before the change, on the terms in force at the time of payment.

10. User age

The app is intended for adult pet owners. Minors may use it with the consent and under the supervision of parents or other legal guardians. The subscription is paid for by an adult user.

11. Governing law and disputes

This agreement is governed by the law of the Russian Federation. The parties first try to resolve disputes by correspondence: write to us at the email in the “Contacts” section and we will reply within 30 calendar days. If no agreement is reached, the dispute is heard in court under the jurisdiction rules established by law, including consumer protection legislation.

12. Contacts

Sole proprietor Mikhail A. Grigoriev INN 772601582696, OGRNIP 326774600507616 Email: newlife2506@ya.ru Website: https://om-digital.ru

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Dercy app privacy policy

Revision of 13 September 2026. Supersedes the revision of 10 August 2026.

In short

The dog profile, diary, knowledge base and breed picker still work only on your device and are never transmitted anywhere. What has changed is this: two sections of the app — “Pocket Trainer” and “Pocket Vet” — now work over the internet. When you write a message there or attach a photo of your dog, that text and photo go to our server and on to a third-party artificial intelligence service (Anthropic, USA) to produce the answer. We do not keep the content of these messages and photos: once the answer has been received and shown to you, the server no longer stores them.

Separately: if you take out a paid subscription, your email for the fiscal receipt goes directly to the YooKassa payment service and is not stored on our side. We never receive or see bank card details — they are handled only by YooKassa.

Below is the same thing in detail.

1. Who is responsible for the app

Developer: sole proprietor Mikhail A. Grigoriev (OM-Digital brand), INN 772601582696, OGRNIP 326774600507616. Application ID: com.omdigital.dercy.

2. Data that stays only on your device

You can enter: the dog’s name, breed, sex, date of birth and weight, its photo, diary entries, vaccination and treatment records, reminder settings, breed picker results. This is saved only in your device’s memory, in the app’s internal storage, which other apps cannot access. This information reaches our servers only if YOU yourself use it in the “Trainer”/“Vet” sections (see Section 3 below) — working with the diary and knowledge base by itself never goes online.

3. What happens in the “Pocket Trainer” and “Pocket Vet” sections

This is the only part of the app that goes online.

What is sent to the server. The text of your message; a photo of the dog, if you attached one; the dog’s profile data from the diary (name, breed, sex, age, weight), if you filled it in — it is added to your question to make the answer more precise.

What we do with it on the server. Before sending the photo we strip its metadata (including geolocation coordinates, if the camera recorded them). The text and photo are then passed to the Anthropic artificial intelligence service (USA) — the developer of the model that produces the answer — and the answer is returned to the app.

What we do NOT do. We do not write the text of your message, the photo or the dog’s profile data to a database, a file or a server log — neither temporarily nor permanently. Once the answer has been produced and sent to the app, the server no longer holds this data. We have no history of your chats with the AI assistant — it is visible only in the app itself, on your device, until you close the dialogue or uninstall the app.

Cross-border transfer. Anthropic processes data on servers in the USA. By sending a message in the “Trainer”/“Vet” sections you consent to such transfer for the purpose of obtaining an answer. We do not pass this data to anyone other than Anthropic and do not use it for anything other than producing the answer to your specific request.

Free limit. One consultation in each section is free. After that a subscription is required (399 ₽/30 days, Section 4 of the Terms of Use). We store the fact that the free consultation was used and the subscription status on the server — otherwise the limit could not be counted (see Section 5 below).

4. Subscription payment

If you take out a subscription, the app will ask for an email — it is needed only so that the YooKassa payment service can send you a fiscal receipt as required by Law 54-FZ. This email goes directly to YooKassa together with the payment creation request; it is not stored on our server — our database has no field for email or phone at all.

We do not request, receive or process bank card details in any form — they are entered and stored exclusively on the YooKassa side, in accordance with the payment data security standard (PCI DSS).

We keep only: the payment ID, the amount, the status (paid/unpaid) and the date — this is needed to enable your access after payment and to sort out a disputed payment. This information is not personal data in itself — it contains no name, no contact details and no card data.

5. Which technical data is stored on the server permanently

• Installation ID — a random technical number that the server issues to the app on first launch.
• Technical device tag (a hash of the Android system identifier) — needed for one purpose only: so that reinstalling the app on the same phone does not reset an already used free consultation and does not lose a paid subscription. It is not a name, not a phone number and not anything that by itself makes it possible to identify you.
• Free consultation counters for each section and the subscription end date.
• Payment data, as described in Section 4.

Contact details (email, phone), the content of chats with the AI assistant and bank card data are not on this list — they are either not collected at all or pass in transit to a third-party recipient (Anthropic — for the answer, YooKassa — for the receipt) without being stored by us.

6. Which permissions the app requests and why

• Internet (INTERNET) — needed ONLY by the “Trainer” and “Vet” sections to contact the server; the diary, knowledge base, breed picker and reminders work without it
• Notifications (POST_NOTIFICATIONS) — to show the reminders you created yourself
• Auto-start after reboot (RECEIVE_BOOT_COMPLETED) — to restore your reminders after the phone is switched on, otherwise they would be lost

The app requests no other permissions: not the camera directly (the system shows the standard image picker and the app receives only the file you chose), not the microphone, not geolocation, not access to contacts.

7. Android backups

The Android operating system may include the app’s local data (profile, diary) in its own device backup and in data transfer to a new phone, if such backup is enabled in your account settings. This happens on the side of the operating system and your account, not ours: the copy goes to your own cloud storage, and we have no access to it. You can manage this in the device settings.

8. Personal data and Law 152-FZ

Information about the dog (name, breed, weight, etc.) is, as a general rule, not personal data — it relates to the animal, not to a person. The technical device tag and the installation ID (Section 5) do not by themselves make it possible to identify a specific person and are not linked on our side to any name or contact.

If you yourself include something about you as a person in a message to the AI assistant or in the diary — this information passes in transit through our server to Anthropic to produce the answer (Section 3) and is not stored by us; in the diary it stays only on your device.

If you write to us by email (Section 10), we will see the sender’s address and the text of the letter — exactly as much as is needed to reply. We do not use this correspondence for mailings and do not pass it to third parties.

9. How to delete data

• To delete an individual diary entry — inside the app, in the corresponding section.
• To delete everything at once — clear the app’s data in Android settings or uninstall the app from the device. This deletes local data and the current chat screen with the AI assistant.
• To delete the server record of your installation (counters, subscription status, technical device tag) — write to us at the email in Section 10 asking to delete your installation data; note that after this, access to a paid subscription that has not yet expired cannot be restored without paying again.

Deletion of local data is irreversible: we have no copy of it.

10. Children

The app is not intended to collect children’s data. Children should use it under parental supervision; the subscription is paid for by an adult.

11. Changes to the policy

If the app changes and the data processing rules become different, we will update this document and its revision date. The current version is always available in the “About the app” section and on the website.

12. Contacts

Questions about this policy: newlife2506@ya.ru Sole proprietor Mikhail A. Grigoriev, INN 772601582696, OGRNIP 326774600507616 Website: https://om-digital.ru

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Revision of 13 September 2026.