Terms of Service

Version 1.1 · Last updated: 18 July 2026

These Terms of Service ("Terms") govern your access to and use of the website tissoftware.ch (the "Site"), the request and enquiry forms it hosts, and the software-development services described on it (together, the "Services"). By using the Site or engaging us for a project, you agree to these Terms. Detailed scope, deliverables, timelines and prices for any specific engagement are set out in a separate written proposal or contract (the "Project Agreement"), which prevails over these Terms in case of conflict.

1. Who we are

TIS Software is a trading brand of Tino Tsanev, selbständig (Einzelunternehmen), a Swiss sole proprietorship (Einzelunternehmen) with its seat at Albisstrasse 100, 8134 Adliswil, Schweiz, owned by Tino Tsanev ("Company", "we", "us"). Contact: contact@tissoftware.dev. We are an AI-native software development studio. We design and build websites, web and mobile apps, marketplaces and games, and offer rescue/hardening of AI- or "vibe-coded" projects and post-launch operation. We are not a marketplace, a broker or a financial intermediary. The Site hosts user accounts and paid subscriptions for our AI features ("Build with AI" and "Ask AI"); subscription payments are processed by Stripe as our payment processor.

2. Scope of these Terms and of our Services

2.1 These Terms cover (a) your use of the marketing Site and its contact/enquiry forms; and (b) the general framework for the software-development services we offer. They do not by themselves create a contract to build anything — a binding engagement arises only when we and you sign or otherwise confirm a Project Agreement. 2.2 Our core offerings include, without limitation: Fixed-price builds (websites, web/mobile apps, marketplaces and similar, quoted at a fixed price after we review your request); Vibe-code rescue (reviewing, debugging, refactoring, securing and completing software started elsewhere, including AI-generated codebases); Launch & Run (deployment, hosting coordination, monitoring, maintenance and ongoing operation); Game development (building games on third-party engines such as Unreal Engine and Unity, subject to Section 6.4). 2.3 The exact scope, deliverables, acceptance criteria, milestones, timeline and price of any engagement are defined only in the applicable Project Agreement. Descriptions on the Site are indicative and not a binding offer.

3. The Site and enquiry forms

3.1 You may browse the Site and submit a contact request or a "Build with AI" project request (typically your name, email and a free-text project description). We use this solely to respond to your enquiry and prepare a possible proposal. Personal-data handling is described in our Privacy Notice, which forms part of these Terms by reference. 3.2 You are responsible for the accuracy of the information you submit and for ensuring you are entitled to share it. Do not submit confidential third-party information, personal data of others, credentials, passwords, or payment-card details through the forms. 3.3 Submitting an enquiry does not oblige us to accept your project or enter any Project Agreement. We may decline any request at our discretion.

4. The "Build with AI" offer (AI-assisted, indicative prototype)

4.1 What it is. The "Build with AI" feature is an early-stage, AI-assisted way to describe an idea and receive an indicative concept, outline or prototype preview. It is a starting point for a conversation — not a finished product, not production-ready software, and not a warranty of what a full build will look like, cost or deliver. 4.2 AI assistance and human review. Outputs are generated with the help of AI tools and, where we present a result to you, are reviewed by a human before any development work is committed. AI-generated output can nonetheless be incomplete, inaccurate, non-functional or unsuitable. We give no guarantee as to correctness, completeness, fitness, originality or performance of any AI-assisted output, and you must not rely on it as final or deployable. 4.3 AI-interaction disclosure. Where you interact with an AI system through our Services, we make that clear, consistent with Article 50 of the EU AI Act (Regulation (EU) 2024/1689), which applies to this type of AI interaction from 2 August 2026. The "Build with AI" and "Ask AI" features are live today and clearly labelled as AI systems inside the product. 4.4 Future free-prototype limits. We may, in a future version, allow a capped number of free prompts or prototype generations per verified account. Any such free allowance is offered at our discretion, may be metered, rate-limited, changed, suspended or withdrawn at any time, and is provided "as is" without any service-level commitment. 4.5 No obligation. A prototype or "Build with AI" result does not oblige either party to proceed. A build proceeds only under a signed Project Agreement.

5. Pricing and payment

5.1 No public price list. We do not publish fixed prices. After we review your request, we provide a fixed-price quote (or another agreed model) in the Project Agreement, based on the scope you describe; material scope changes may change price and timeline through a written change request. 5.2 Payment terms. Invoicing schedule, milestones, currency, taxes and due dates are set out in the Project Agreement. Unless stated otherwise, amounts are exclusive of VAT / ДДС, and any applicable taxes are added at the statutory rate. 5.3 We do not take a percentage of your revenue or profit. Our compensation is the fee agreed for the work; we do not claim any share of your product's income, sales or profits. 5.4 Late payment. Overdue amounts may bear statutory default interest and reasonable collection costs, as permitted under Swiss law and as specified in the Project Agreement.

5A. Cancellation, withdrawal and refunds

5A.1 Cancel any time. You can cancel a paid plan at any time, from your account or from the billing portal. Cancellation takes effect at the end of the current billing period: you keep your plan and your remaining credits until then, and you are not charged again. There is no notice period and no cancellation fee.

5A.2 Refunds. Credits and subscription fees are prepaid. Except where required by law, they are non-refundable and non-redeemable for cash or other value. You may cancel at any time; your subscription and credits remain active until the end of the current billing period, after which your account moves to the Free plan. Nothing in these Terms limits any statutory refund, cancellation, or right of withdrawal you may have as a consumer under applicable law, including the statutory 14-day right of withdrawal for consumers in the EU/EEA; where you validly exercise such a right, we will refund you as required by law.

5A.3 Your statutory right of withdrawal (consumers in the EU/EEA and the UK). If you are a consumer — a natural person acting outside your trade, business or profession — you also have a statutory right to withdraw from the contract within 14 days, without giving any reason (Directive 2011/83/EU; in Bulgaria, ЗЗП чл. 50). We do not ask you to waive this right and we do not try to limit it. To withdraw, send us an unequivocal statement — an e-mail to contact@tissoftware.dev is enough. You may use the model withdrawal form in Annex A, but you do not have to. We confirm receipt without delay on a durable medium.

5A.4 Performance begins immediately — and why we ask you to confirm it. The AI features are supplied immediately, so that you can use your credits the moment you pay. At checkout we ask you to confirm two things separately: that you expressly request immediate supply during the 14-day withdrawal period, and that you understand the withdrawal period runs from the day the contract is concluded. We record both confirmations and send them to you by e-mail on a durable medium. Neither confirmation takes away your statutory right of withdrawal under 5A.3.

5A.5 After the withdrawal period. Outside a validly exercised statutory right of withdrawal, we do not refund a billing period that has already started, except where mandatory law requires it or where we choose to at our discretion (for example, if the service was materially unavailable). You can cancel at any time under 5A.1 and you will not be charged again.

5A.6 Changes to the AI models we use. The AI models behind Build with AI and Ask AI are supplied to us by third parties, and they change: providers release new models, retire old ones and change their prices. We may therefore change, add or replace the models available on a plan, and their credit cost, for a valid reason — including a provider retiring or repricing a model, a material change in cost, security, or a legal requirement. If a change would materially and negatively affect your use of the service, we will tell you at least 30 days in advance by e-mail, and you may terminate free of charge within 30 days of that notice and receive a refund for the unused part of your period (Directive (EU) 2019/770, Art 19). Routine improvements that do not disadvantage you do not trigger this.

5A.7 Credits. Credits are a monthly allowance, not money and not a stored value. They are consumed as you use the service, they do not roll over to the next month, and they have no cash value. What a build or a chat costs in credits depends on the model you choose, and the cost of every model is shown to you before you spend it. Unused credits are not refunded when a period ends, except where required by law under 5A.2 or 5A.3.

5A.8 Price changes. If we change the price of a plan, we will give you at least 30 days' notice by e-mail. You may cancel with effect from the date the change takes effect. If you do not cancel, the new price applies from your next billing period.

5A.9 Complaints. Write to contact@tissoftware.dev — we answer within one business day. Consumers in Switzerland may also contact the cantonal consumer-advice services; there is no mandatory consumer-arbitration body for this service. Nothing in these Terms limits a consumer's mandatory statutory rights.

Note: these Terms remain subject to review by our lawyer.

6. Intellectual property and ownership

This section states our general ownership logic. The controlling terms for any specific project are those in its Project Agreement. 6.1 Your bespoke product. On full payment of the agreed fees, you own the bespoke, project-specific work product we create for you — the custom features, custom UI, content and configuration built specifically for your project. You also keep and control your own accounts (app-store, cloud, domain, third-party services); we never claim ownership of them. 6.2 Our reusable engine and framework — licensed, not sold. Our Services are built on reusable components, frameworks, libraries, templates, tooling and know-how we develop and own independently of any single client (our "Engine"). The Engine and all pre-existing materials and general improvements remain our exclusive property. To the extent the delivered product incorporates the Engine, we grant you a perpetual, worldwide, non-exclusive, non-transferable licence to use the Engine as embedded in your delivered product, for the operation of that product. This licence does not let you extract, resell, sublicense or offer the Engine as a standalone product or competing framework. 6.3 Optional source-code buyout. Where offered and separately agreed in the Project Agreement, you may purchase a broader source-code buyout (e.g. a full source licence to the delivered codebase). Terms, scope and price are defined in that agreement. Absent an express buyout, the default is the embedded-Engine licence in 6.2. 6.4 Games and third-party engines. For game development, the client is the licensee and publisher of the game and of any third-party engine used (e.g. Unreal Engine, Unity). The client is responsible for holding the required engine licences and for all engine-related royalties, runtime fees, seat fees and platform charges. We build on the engine as your service provider; we do not assume, sublicense or indemnify engine licence obligations unless expressly agreed in writing. 6.5 Third-party and open-source components. Products may include third-party or open-source components under their own terms, which pass through to you. We will identify material third-party components on request. 6.6 Portfolio reference. Unless the Project Agreement says otherwise, we may name you as a client and show non-confidential visuals of the delivered work in our portfolio. We honour reasonable confidentiality requests.

7. Client responsibilities and acceptable use

7.1 You agree to provide, in good time, the materials, access, content, approvals and decisions we reasonably need, and to ensure you hold the rights to any content you supply. 7.2 You must not use the Site or Services to: break any law or infringe anyone's IP, privacy or other rights; build, request or distribute unlawful, fraudulent, malicious, infringing or harmful content or software (including malware, spam, or systems designed to deceive or defraud); attempt unauthorised access to, disrupt, overload, scrape, or reverse-engineer the Site, our systems, our Engine or our sub-processors' systems, or circumvent any usage limit or security measure; or misrepresent your identity or authority, or submit another person's data without a lawful basis. 7.3 You are solely responsible for the lawfulness, licensing and operation of your product after delivery, including any regulatory, consumer-protection, data-protection or platform-store requirements. We deliver software; we do not provide legal, tax or regulatory advice. 7.4 We may suspend or terminate access, and remove content, where we reasonably believe these Terms have been breached or where required by law.

8. Third parties and sub-processors

8.1 To deliver the Site and Services we rely on reputable third-party providers, including: Lovable Cloud / Supabase (auth, database, edge functions, storage), Google / Gemini, Anthropic / Claude and OpenAI / GPT (AI model providers for "Build with AI" and "Ask AI" — the model you choose determines which one processes your prompt), Stripe (subscription payment processing), Resend (transactional e-mail), Twilio (SMS delivery for phone verification), Cloudflare (DNS, e-mail routing, CDN, bot protection including Turnstile) and Sentry (error monitoring). We may add, replace, update or remove AI model providers and models over time — including new third-party providers and any AI models we develop or operate ourselves; the controlling list and legal bases are in our Privacy Notice. 8.2 These providers act under their own terms and, where they process personal data, under data-processing agreements. We are not responsible for outages, changes or acts of third-party providers beyond our reasonable control.

9. Disclaimers

9.1 The Site and any free features (including "Build with AI" outputs) are provided "as is" and "as available", without warranties of any kind, to the fullest extent permitted by applicable Swiss and EU law. We do not warrant that the Site will be uninterrupted, error-free or secure, or that any AI-assisted output will be accurate, complete or fit for a particular purpose. 9.2 Warranties for paid development work are those expressly set out in the applicable Project Agreement (e.g. a defined defect-remedy or warranty period). Except as expressly stated there and as required by mandatory law, all other warranties, express or implied, are excluded to the extent permitted by law. 9.3 Nothing in these Terms limits any rights you have under mandatory consumer-protection or other mandatory provisions of Swiss law that cannot lawfully be excluded.

10. Limitation of liability

10.1 To the fullest extent permitted by law, we are not liable for indirect, incidental, special or consequential damages, loss of profit, revenue, data, goodwill or business interruption arising out of or in connection with the Site, the Services or any AI-assisted output. 10.2 To the fullest extent permitted by law, our total aggregate liability arising out of or in connection with a given engagement is limited to the total fees you have actually paid us for that engagement in the twelve (12) months preceding the event giving rise to the claim. For free use of the Site, where a limit is permitted, our aggregate liability is limited to EUR 100. 10.3 The exclusions and limits in this Section do not apply to liability that cannot be excluded or limited under mandatory law, including liability for intent (умисъл) and gross negligence (груба небрежност), for personal injury, or under mandatory consumer-protection or product-liability rules. 10.4 Because our deliverables and AI-assisted outputs may be further modified, deployed and operated by you, we are not responsible for the results of changes made by you or third parties after delivery, or for your operation of the product.

11. Indemnity

To the extent permitted by law, you will hold us harmless from third-party claims (including from authorities) arising out of your content, your instructions, your use of the delivered product, or your breach of these Terms or of applicable law, and reimburse our reasonable defence costs. Corresponding protections in a Project Agreement apply in addition.

12. Confidentiality

Each party will keep the other's non-public information confidential and use it only to perform or receive the Services. Specific confidentiality or NDA terms in a Project Agreement or separate NDA prevail. This does not prevent disclosure required by law or the portfolio use permitted in 6.6.

13. Term, suspension and termination

13.1 These Terms apply while you use the Site or Services. Engagement-specific start, duration and termination are governed by the Project Agreement. 13.2 We may suspend or stop providing the Site or any free feature at any time. Termination does not affect accrued rights, earned fees, or clauses that by their nature survive (including Sections 6, 9, 10, 11, 12 and 15).

14. Changes to these Terms

We may update these Terms from time to time — e.g. to reflect new features (such as the engine and account registration), legal changes, or sub-processor changes. We will post the updated version with a new "Last updated" date and, where changes are material and we hold your contact details, give reasonable prior notice. Continued use after changes take effect constitutes acceptance. Terms already incorporated into a signed Project Agreement change only by written agreement.

15. Governing law and jurisdiction

15.1 These Terms are governed by Swiss law, without regard to conflict-of-law rules, and — for personal data — by the revised Swiss Data Protection Act (revDSG). 15.2 The place of jurisdiction is Adliswil, Switzerland (competent court: Bezirksgericht Horgen), subject to any mandatory jurisdiction. 15.3 If any provision is or becomes invalid, the remaining provisions stay in force, and the invalid provision is replaced by the lawful provision closest to its economic intent; in areas mandatory for consumers, the statutory standard applies.

16. Contact

TIS Software — Tino Tsanev, selbständig (Einzelunternehmen) · Albisstrasse 100, 8134 Adliswil, Schweiz · contact@tissoftware.dev

Annex A — Model withdrawal form

Complete and return this form only if you wish to withdraw from the contract.

To: Tino Tsanev, selbständig (TIS Software), Albisstrasse 100, 8134 Adliswil, Schweiz — contact@tissoftware.dev

I hereby give notice that I withdraw from my contract for the supply of the following digital service:

• Service: ................................................ (Pro / Ultra plan)
• Ordered on: ................................................
• Name: ................................................
• Address: ................................................
• Date: ................................................