Terms of Use
Effective 13 October 2026
By using Starsign you agree to these terms. If you do not agree, please do not use the app.
Starsign is published by Tam Duc Studio, an individual developer in Vietnam. You can reach us at hamhansamu@proton.me.
What Starsign is
Starsign shows daily horoscopes for the twelve signs of the Western zodiac, compares two signs, calculates your Sun, Moon and rising signs from your birth details, and lets you talk with AI astrologers. Written readings are produced by a language model. It is entertainment and self-reflection. It is not a prediction of the future, and it is not medical, financial, legal, or psychological advice. If something in your life needs a professional, please see one.
The AI astrologers in the app are fictional characters. They are not real people, they hold no qualifications, and they have no history of reading for anyone. Their replies are generated by software, and the app tells you so before you send your first message.
If you write something suggesting you may be in danger, the app shows crisis support information instead of a reply. That is a safety measure, not a service — please contact the listed help line or your local emergency number.
Who may use it
You must be 16 or older.
Your account
You can use most of Starsign without an account. Signing in with Google is required to chat with an AI astrologer and to subscribe, because conversations and a subscription belong to your Google account rather than to a handset — that is what lets them follow you to a new phone the next time you sign in.
Keep your Google account secure. Anything done through a signed-in session counts as done by you.
Free use, and what Premium adds
| Free | Premium | |
|---|---|---|
| Daily horoscope for every sign | included | included |
| Basic compatibility of two signs | included | included |
| Your Sun, Moon and rising signs | included | included |
| Detailed compatibility reading | 1 a day, after watching a rewarded advertisement | 10 a day |
| Birth-chart reading | 1 a day, after watching a rewarded advertisement | 10 a day |
| Messages to an AI astrologer | 10 to try, once ever — not per day | 16 every 6 hours |
| Advertisements | optional, only when you choose to unlock a reading | none |
Every conversation with an AI astrologer closes after 8 questions — at both tiers — and you can then start a new topic. Each question uses one message from the allowance above.
Allowances reset on a fixed clock in UTC, not in your local time: daily allowances at 00:00 UTC, and the Premium message allowance at 00:00, 06:00, 12:00 and 18:00 UTC. What each tier gives you is always shown in the app before you pay for anything, and if we change it the app shows the new terms.
Limits are enforced on our servers. Attempting to bypass them, to automate requests, or to resell access is a breach of these terms and we may end your access.
Premium subscription
Premium is sold as a weekly, monthly, or yearly subscription through Google Play.
- The price you pay is the one Google Play shows you at checkout, in your currency and including any local tax. We do not quote prices here, because they differ by country and by any promotion running at the time.
- Subscriptions renew automatically at the end of each period, at the then-current price, until you cancel.
- You cancel in Google Play, not in the app: Play Store → your profile → Payments and subscriptions → Subscriptions. Cancelling stops the next renewal; you keep Premium until the end of the period you already paid for.
- Refunds are handled by Google Play under Google's refund policy. We cannot take a payment or issue a refund ourselves, because we never receive your payment details. If you are in a country where the law gives you a right of withdrawal, that right applies on top of Google's policy.
- Premium is tied to the Google account you bought it with. Sign in with that account on a new device and your subscription is recognised automatically; there is nothing to restore by hand.
- If a payment is pending or fails, the app says so and no benefit is granted until Google confirms the purchase. You are not charged twice for a retry.
Advertising
The free tier offers video advertisements from Google AdMob that you can choose to watch in exchange for a detailed compatibility reading or a birth-chart reading. Watching one unlocks the reading it promised. If the reward cannot be verified straight away, we do not take the reading from you — you can retry with the same reward. Where an advertising consent choice is required, you can change it at any time in Settings → Ad privacy options.
Your content
The messages you write remain yours. You grant us only what is needed to run the service: sending your message and your signs to our language-model provider so that a reply can be written, and storing the conversation so you can continue it. What is stored, and for how long, is set out in the Privacy Policy.
Your birth details are stored on your device and are not backed up by us. Losing or wiping the device loses them, and signing in does not change this.
Do not use Starsign to send content that is unlawful, that harasses or threatens anyone, or that you have no right to send.
Availability, and when the service degrades
We may change, suspend, or discontinue Starsign or any part of it. Language-model providers and advertising networks can fail or reach their limits, and when they do the app shows a shorter, pre-written text — clearly marked as such — or asks you to try again later. A marked fallback text is not a defect, and it is not presented as a reading written for you.
Ending your access
You can stop using Starsign at any time, cancel your subscription in Google Play, and ask us to delete your data as described in the Privacy Policy. We may suspend or end access if you breach these terms, and if we do we will tell you why unless the law prevents us.
Liability
Starsign is provided as is. To the extent permitted by law, we are not liable for any decision you take on the basis of a reading, nor for indirect or consequential loss. Where liability cannot be excluded, it is limited to the amount you paid us in the twelve months before the claim.
Nothing in these terms limits rights you hold under mandatory consumer law in your country, and nothing here excludes liability for fraud, death, or personal injury caused by our negligence.
Governing law
These terms are governed by the law of Vietnam, and disputes belong to the courts of Vietnam — except where the mandatory consumer law of your own country of residence gives you the right to bring a claim there instead.
Changes to these terms
If these terms change in a way that matters, the app shows you the new version before you carry on using it. The date at the top always says which version you are reading.
Contact
hamhansamu@proton.me
Language
These terms are published in several languages. If a translation and the English version disagree, the English version prevails.