Terms of Service

Last updated 10 November 2026

1. The agreement

These terms are a contract between you and Luka Kapetanovic, an individual based in Belgrade, Serbia, who operates onestar ("onestar", "we", "us"). By creating an account or using onestar you agree to them. If you use onestar for a company or another organisation, you confirm that you may accept these terms for it, and "you" includes that organisation. Our Privacy Policy explains how we handle personal data.

2. Who can use onestar

onestar is a tool for businesses and professionals: people who build apps or run or work for a business. You must be at least 18 and able to enter a binding contract. You may not use onestar where the law that applies to you forbids it.

3. What onestar does

You give onestar a link to an App Store, Google Play or Google Maps listing. onestar reads the listing's public low-star reviews, writes a report on the problems they describe, and drafts replies. On paid plans it also checks for new reviews, emails alerts and sends a weekly report.

Reviews come from public sources and from Google when you connect your Business Profile. They can be incomplete or delayed, and each source limits how many reviews it provides. We may add, change or remove features, and we will give reasonable notice before removing something a paid plan depends on.

4. Your account

Use an email address you control and keep access to it secure, because anyone who can read your email can sign in. You are responsible for what happens in your account. Each person or business may have one account, and you may not create more accounts to get more free reports or trials. Tell us straight away through the contact form if you think someone else has used your account.

5. Plans, trials and payment

• Free. Your first report is free and needs no payment method. The Free plan's limits are shown in the app.
• Paid plans. The features and limits of each paid plan are those shown on the pricing page when you subscribe. We may change them for future billing periods, with notice.
• Creem is the seller. Subscriptions are sold by Creem, our merchant of record. Creem charges your payment method, adds any tax and issues your invoices, and Creem's own terms apply to the purchase.
• Prices. Prices are in euros and don't include VAT or sales tax, which is added at checkout where it applies.
• Free trial. A paid plan starts with a 7-day free trial. Starting it requires a payment method. The first charge is taken when the trial ends, unless you cancel before then. Each customer gets one trial.
• Renewal. Subscriptions renew every month, automatically, at the price then in effect, until you cancel.
• Cancelling. You can cancel at any time from the Billing page. Your plan keeps working until the end of the period you have paid for, then your account moves to Free. We don't refund the remainder of a period.
• Refunds. If you ask within 14 days of your first payment, we will refund it in full. Later payments are not refundable, except where the law gives you that right.
• Price changes. We will email you at least 30 days before a price change. It applies from your next renewal after that notice, and you can cancel before then if you don't accept it.
• Failed payments and chargebacks. If a payment fails, your account may move to Free until it succeeds. If you dispute a valid charge with your bank instead of contacting us, we may suspend the account.

6. Acceptable use

These rules cover everything you do with onestar. The rules for the AI reply tool follow them.

General rules

You agree not to:

• use onestar to break the law or anyone's rights, or to harass, defame or threaten reviewers or competitors;
• use onestar to solicit, buy, fake, filter or suppress reviews, or to ask only happy customers to leave a review;
• get around plan limits, or share one account between several businesses to avoid paying;
• access onestar with bots or scripts, scrape it, or overload it;
• probe, attack or reverse engineer the service, or try to reach other customers' data;
• resell onestar or its output as a competing service without our written permission;
• send us malware, or content you have no right to share.

Rules for AI-generated review replies

onestar's reply tool uses AI to draft public replies to customer reviews. It is built to write short, polite, professional replies to reviews of your own app or business, and nothing else. You agree not to use it, or try to make it, generate or publish:

• sexually explicit, pornographic or other adult or NSFW content of any kind, including sexual content about a reviewer or any other person;
• hateful, harassing, abusive, threatening or violent content, or content that attacks someone for who they are;
• content that reveals a reviewer's personal information, or that defames a reviewer, a competitor or anyone else;
• false or misleading content: fake reviews, replies that pretend to come from someone else, or statements you know to be untrue;
• offers of money, discounts or gifts in return for changing or removing a review;
• spam, or advertising that has nothing to do with the review;
• anything unlawful, or anything that breaks the rules of the platform where the reply appears.

You must read every draft before you post it, and you are responsible for what you publish. You may not try to get around the tool's safeguards, for example by feeding it text meant to change how it behaves. We may refuse to generate a reply, remove content from your account, and suspend or close accounts that break these rules. To report misuse of onestar, email support@twobricklabs.com.

7. Reviews, replies and other platforms

• No affiliation. onestar is independent. It is not affiliated with, endorsed by or sponsored by Apple, Google or any other platform. Their names and marks belong to them.
• Replies are yours. Reply drafts are suggestions. Nothing is posted unless you post it or press the button that posts it. You are responsible for every reply you publish and for following the rules of the platform it appears on.
• Google Business Profile. When you connect it, you authorise onestar to read the reviews of your locations and to post the replies you approve. You can disconnect at any time.
• Competitor listings. onestar reads only the public reviews of a competitor's listing. How you use what you learn is your responsibility.
• Platform changes. If a platform changes or restricts access to its reviews, parts of onestar may stop working for that platform. That is outside our control.

8. AI-written output

Reports, counts, summaries, suggested fixes and reply drafts are produced by an AI model. They can be inaccurate, incomplete or out of date, and a count can be off. Quotes are copied from reviews, but check anything important against the review itself. Suggested fixes are ideas, not professional, legal or financial advice. You decide what to do with the output and you are responsible for those decisions. We don't promise that using onestar will improve your ratings, reviews or revenue.

9. Ownership

We own onestar: the software, the design, the name and the logo. These terms give you a personal, non-transferable right to use it while your account is in good standing, and nothing more.

What you give us stays yours. You allow us to store and process it as needed to run the service for you. You may use the reports and reply drafts onestar writes for you freely in your own business. Because the same public reviews produce similar results, other customers may receive similar output. Reviews belong to their authors and the platforms that host them.

If you send us ideas or feedback, we may use them without owing you anything.

10. Availability

We work to keep onestar running, but we don't guarantee that it will always be available, fast or free of errors. It depends on other services, including app stores, Google, our hosting providers and our AI provider, and can fail when they do. We may pause it for maintenance. If we shut onestar down, we will give at least 30 days' notice and refund any period you have paid for but not used.

11. Suspension and ending

You can stop using onestar at any time: cancel any subscription, then ask us through the contact form to delete your account. We may suspend or close an account that breaks these terms, puts the service or other people at risk, or has unpaid charges, and we may do so without notice when the matter is serious. If we close your account for a reason other than your breach, we refund the period you have paid for but not used. Sections 8, 9, 12, 13, 14, 15 and 17 continue to apply after the agreement ends.

12. No warranties

onestar is provided "as is" and "as available". To the fullest extent the law allows, we give no warranties, express or implied, including warranties of merchantability, fitness for a particular purpose, accuracy and non-infringement.

13. Limit of liability

To the fullest extent the law allows, we are not liable for indirect, incidental, special or consequential loss, or for lost profits, revenue, customers, data or reputation, however caused. Our total liability for all claims connected with onestar is limited to the greater of the amount you paid for onestar in the 12 months before the claim arose and €100.

Nothing in these terms limits liability that cannot be limited by law, such as liability for fraud, intentional harm or gross negligence.

14. Your responsibility to us

If someone brings a claim against us because of content you published, the way you used onestar, or your breach of these terms, you will cover the reasonable costs and losses we incur as a result.

15. Governing law and disputes

These terms are governed by the law of the Republic of Serbia. Please write to us first through the contact form: most problems can be settled that way, and we will try to resolve any dispute within 30 days. If that fails, the courts in Belgrade, Serbia have jurisdiction.

If you use onestar as a consumer despite section 2, nothing in these terms takes away the protections or the choice of court that the mandatory law of your country of residence gives you.

16. Changes to these terms

We may update these terms. When a change is material we will email account holders at least 14 days before it takes effect. If you keep using onestar after that date, you accept the new terms. If you don't accept them, cancel and stop using onestar before they take effect.

17. General

These terms and the Privacy Policy are the whole agreement between you and us about onestar. If a court finds part of them unenforceable, the rest still applies. If we don't enforce a right straight away, we haven't given it up. You may not transfer this agreement without our consent. We may transfer it to a successor that takes over onestar, and we will tell you if we do. Neither of us is liable for failures caused by events outside our reasonable control. We send notices to the email address on your account. The English version of these terms governs.

18. Contact

Write to us through the contact form or at support@twobricklabs.com. onestar is operated by Luka Kapetanovic, Belgrade, Serbia.