Last Updated: November 13, 2026
This Privacy Policy describes how IE Denis Salaev ("we," "us," or "our") collects, uses, and protects information when you use our mobile application Sidius (the "App"). By using the App, you agree to the collection and use of information in accordance with this Privacy Policy.
1.1 Device Identifier: Sidius does not require you to register with an email address or password. On first launch the App generates a random anonymous identifier (UUID) and stores it in the device Keychain. It is sent with every request so that your data belongs to your device. It is not derived from your hardware, your Apple ID or any advertising identifier. It is shown at the bottom of the Settings screen.
1.2 Profile and Birth Details: The first name you enter, the pronouns you choose, your date of birth, the time of birth if you know it, and your place of birth (the city, its country, its coordinates and its time zone). We use them to compute your natal chart, the positions of the Sun, the Moon, the planets, the houses and the angles at the moment you were born, and we store that chart with your profile.
1.3 Onboarding Answers: Your answers to the questions in the App's introduction, such as what brings you to the App and your relationship status. They are used to give your readings and conversations the right focus.
1.4 Your People: If you add someone to check your compatibility with them (a partner, a friend, a family member), we store the name you give them, who they are to you, and their date, time and place of birth, and compute their chart. Please add only people who are happy for you to do so. You can remove a person, and everything written about them, at any time.
1.5 Readings: The interpretation of your chart, your daily, weekly, monthly and yearly readings, your transits, your Moon calendar and your compatibility readings, written for you and stored so they can be shown again.
1.6 Chats, Check-ins and Memory: The messages you write to the astrologer and its replies; your evening check-ins (what you write about your day, the mood tag and the reply), which form your journal; and short notes the astrologer keeps about you from your chats and check-ins (for example, a plan you mentioned) so that later answers can take them into account. You can see and delete these notes, delete all of them, or turn this memory off in the App.
1.7 Voice: Voice is used only when you choose it. In a live voice call your voice is captured through the microphone and streamed to Google's Gemini service (Section 4), which replies in voice; after the call we store its transcript and its length, linked to your identifier, and use the length to count the voice minutes of your subscription. When you tap Listen, the text of a reading is sent to Gemini to be read aloud. When you dictate a message or a check-in, Apple's speech recognition turns your voice into text on your device, or on Apple's servers when your device cannot do it itself; we receive only the text you send. The microphone is used only while a call or dictation is running.
1.8 Device and App Information: Your time zone, your device region, the country of your App Store account and the app version, sent when the anonymous identifier is created, and the language you use in the App.
1.9 Purchases: Sidius Pro subscriptions are bought through Apple's App Store. Apple processes the payment; we never see your payment card or billing details. To know whether to unlock Pro, we use RevenueCat, a subscription management service. RevenueCat receives your anonymous identifier, the identifier and price of the subscription you bought, the purchase and expiry dates, your App Store country and the App Store receipt, and tells our servers whether the subscription is active and for which period.
1.10 Earlier Versions: Versions of Sidius before 1.4 identified constellations in photographs of the night sky. If you used them, the photographs, the location stored in gallery photos and the recognition results are still kept on our servers under your identifier until you delete your data (Section 7). The current version collects only the photos you attach to a support message (1.11).
1.11 Support Chat: The messages you write to our support team in the App (Settings › Write to us), the photos you choose to attach from your photo library or take with the camera, and our replies, stored with your identifier. To help our team answer, the text of your messages is sent to an AI model through OpenRouter (Section 4), which drafts a reply that a person reads, edits and sends; the photos are not sent to it.
1.12 Notifications: If you turn on Notifications in Settings, the App sends us the push token Apple gives your device and whether notifications are on. We use it to send you the day's reading in the morning, the evening check-in question and replies from support, through Apple's Push Notification service. Turning the toggle off stops them.
1.13 Install Source: When the App is first opened it asks Apple's AdServices framework whether it was installed from an Apple Ads campaign. Apple answers with whether it was, and if so the campaign, ad group, keyword and country of that campaign; we keep this with your identifier to see which campaigns bring people to Sidius. It contains no advertising identifier and is not used to track you across apps or websites.
1.14 Usage Analytics: To learn which parts of Sidius are used and where people leave, the App sends our own server a record of what you do in it: the screens you open, the onboarding steps you pass, the features you use (for example a chat message sent, a reading listened to, a check-in), purchase attempts and their outcome, together with the app version, your device model and iOS version, the device region and language, and a random install identifier kept in the Keychain so that a reinstall counts as the same person. These records are linked to your anonymous identifier, stored only on our servers (Section 4, Hetzner), never sold or shared, and not used for advertising. We also record the size and cost of each AI request made for you. The records linked to your identifier are deleted with the rest of your data (Section 7.4).
What we do not collect: no email address, no password, no phone number, no contacts, no access to your photo library beyond the photos you pick to send to support, no location of your device, no advertising identifier, no device fingerprint, and no data from any other app. Apart from the RevenueCat SDK used for subscriptions, Sidius contains no advertising, analytics or tracking SDKs, and does not track you across apps or websites; the usage analytics in Section 1.14 are our own and stay on our servers.
We do not use your information for advertising, profiling for marketing, or any purpose unrelated to the features above. We do not sell or rent personal information to anyone.
Your readings, the astrologer's replies in chats, check-ins and voice calls, and the voice that reads them aloud are produced by AI models. The App asks for your permission on its first screen before anything is sent.
We never send your identifier to an AI provider. The providers receive this data only to produce the reply. Because the text is generated by AI, it may be imprecise. Sidius is for entertainment and self-reflection, not for medical, psychological, legal or financial advice.
Apple processes your App Store download, your Sidius Pro payments, the delivery of notifications, the install source described in Section 1.13, dictation when it is not done on your device and, if you have it enabled, the diagnostic data Apple collects at the operating-system level. That processing is governed by Apple's own privacy policy, not ours.
Your profile, charts, people, readings, chats, journal, the astrologer's notes, call transcripts and support messages with their photos are kept for as long as you use the App. You can delete all of it at any time (Section 7). When you do, we delete the records; deleted data is removed from backups within 30 days.
All traffic between the App and our servers runs over HTTPS with a valid TLS certificate. The database sits on a server that accepts no public database connections and allows administrative access only over SSH with key authentication. No method of transmission or storage is completely secure, and we cannot guarantee absolute security.
7.1 Microphone, Speech Recognition and Camera: Sidius asks for the microphone the first time you start a voice call or dictation, for speech recognition the first time you dictate, and for the camera the first time you take a photo for support. It uses them only while a call, dictation or photo is in progress. You may revoke access in iOS Settings at any time; the rest of the App keeps working.
7.2 Your Details: You can change your name, pronouns and birth details in Settings at any time, which replaces the copy on our servers and recomputes your chart.
7.3 Memory: In the App you can see what the astrologer remembers about you, delete any note or all of them, and turn memory off.
7.4 Access and Deletion: In Settings › Privacy & data you can download a copy of your data, and delete your account and everything stored about it from our servers. You can also write to the address in Section 11 from any email address, including the identifier shown at the bottom of the Settings screen; we answer within 30 days. A Sidius Pro subscription is Apple's and is not cancelled by deleting your data: cancel it in your Apple ID settings.
7.5 Deleting the App: Removing Sidius from your device erases what it holds locally. It does not delete your data from our servers; use 7.4 for that.
7.6 Notifications: Sidius never asks for notifications on its own; you turn them on and off with the Notifications toggle in Settings, or in iOS Settings.
If you are in the European Economic Area or the United Kingdom, you have the right to access, correct, erase, restrict, and port your personal data, and to object to processing. Exercise any of these in the App (Section 7.4) or by writing to the address in Section 11.
Our legal bases are: performance of a contract for the profile, birth details, people, answers, chats, journal and calls needed to deliver the readings and conversations you asked for; consent, given on the App's first screen, for sending that data to the AI providers in Section 3; and legitimate interests for keeping the service secure and working, answering support messages and measuring which campaigns bring people to the App and how it is used.
Our database is stored in Germany. RevenueCat, OpenRouter, OpenAI and Google process data in the United States, and Telegram in the United Arab Emirates, under standard contractual clauses. You have the right to lodge a complaint with your national supervisory authority.
We do not sell or share personal information as those terms are defined by the CCPA/CPRA, and we have not done so in the preceding twelve months. You have the right to know what we collect, to delete it, and not to be discriminated against for exercising either right. Section 7.4 is the mechanism for both.
Sidius is not directed at children under 13, and we do not knowingly collect personal information from them. If you believe a child has provided us with information, write to us and we will delete it.
If you have questions about this Privacy Policy, our data practices, or wish to exercise your rights, contact us:
IE Denis Salaev
Email: support@prlsmulti.app
Location: Georgia
We may update this Privacy Policy from time to time. The date at the top always shows when it last changed. Material changes will be announced in the App before they take effect.
By using Sidius, you acknowledge that you have read, understood, and agree to this Privacy Policy.