These terms form the contract signed by every SDO Studio client in their client area: articles 1 to 4 are completed there with the title, scope, schedule and price of the accepted proposal. Business clients only (article 10). The French version prevails. Version française.
SDO Studio (Séléna d'Orion, sole trader, SIRET 883 152 373 00014, Saint-Sorlin-de-Conac (Charente-Maritime), France — business carried out from Nice (Alpes-Maritimes)) designs and develops for the client the product described in the accepted proposal: title, level, scope.
The delivered product, its accounts and its documentation, as described in the proposal. Design and mock-ups are quoted separately from development. Anything not described in the proposal is not included, in particular: publication on the app stores (Google Play, App Store), audience measurement (Google Analytics, Meta, TikTok or LinkedIn pixels), connection to social networks, search engine optimisation, content writing (texts, photos, videos, translations beyond the planned languages), migration of existing data, training beyond the handover planned at delivery, and advertising campaigns. Each of these is quoted separately, as a fixed-price item.
The schedule written in the proposal. The client validates the mock-ups, then performs acceptance testing within ten working days of the delivery of each version; without a written reply within that period, the version is deemed accepted.
Total price as set in the proposal, VAT not applicable, art. 293 B of the French tax code. Deposit of 45% on order; 30% during the project; balance of 25% on delivery. Each payment is invoiced, by card or bank transfer. Third-party costs (hosting, domain names, app store accounts, paid services) are borne by the client.
The client provides in due time the texts, images, logos and accesses needed, and warrants that it holds the rights to them. Hosting, domain and store accounts are opened in the client's name and at the client's cost; their opening and configuration, and publication on the stores by the studio, are quoted separately.
Once fully paid, the client owns the specific code and design produced for the project, under the conditions of article 11. SDO Studio keeps its generic components, tools and know-how.
Bugs reported within three months of delivery are corrected free of charge, within the limits of article 14. Evolutions, hosting, updates of third-party services and security follow-up are handled as fixed-price interventions, project by project, on quotation, with no subscription and no minimum term.
8.1 Nature of the deposit. The 45% payment on order is a deposit within the meaning of contract law: it firmly binds both parties and makes the order final. It is not a forfeitable earnest payment; the client may not withdraw by abandoning the sum paid.
8.2 Work performed. Should the client terminate the project, the services performed as of the termination date remain due and are invoiced in proportion to the progress recorded. The sums already paid are set off against that amount and give rise to no refund up to the value of the work performed.
8.3 Termination fee. If the value of the work performed is lower than the sums already paid, the studio retains a termination fee equal to 45% of the total project amount, in consideration of the production schedule reserved and the resources committed.
8.4 Costs incurred. Third-party services opened in the client's name, as well as subcontracted services already ordered, remain payable by the client whatever the outcome of the project.
8.5 Termination by the studio. Should the studio terminate the project, absent any breach by the client, the sums paid in excess of the work performed are returned to the client within thirty days.
This contract is governed by French law. The parties first seek an amicable solution; failing that, the courts of Nice have jurisdiction.
These terms apply to business clients acting in the course of their professional activity.
Ownership of the source code, deliverables and documentation is transferred to the client only after full payment of the price. Until then, the client has a provisional right of use limited to acceptance testing and tests, excluding any commercial exploitation. Third-party service accounts opened in the client's name are the client's property from the outset.
The client has ten working days to validate each stage submitted. After that period without a reply, the stage is deemed accepted and the project continues. If the absence of validation or of delivery of the expected materials exceeds thirty days, the studio may suspend the project; its resumption is rescheduled according to availability, and the current payment instalment becomes due.
In the event of non-payment of an instalment when due, the studio may suspend the work after a formal notice that has remained without effect for eight days. Late-payment penalties apply at three times the legal interest rate, plus the fixed recovery indemnity of €40 provided for by the French commercial code.
The three-month warranty covers the correction of malfunctions of the deliverable against the validated scope. It does not cover evolutions, new features, changes requested after acceptance testing, or malfunctions resulting from a third party's intervention, a modification of the code by the client, or a failure of a third-party service.
The studio's liability is limited to the total amount invoiced for the project concerned. The studio is not liable for indirect damages, in particular loss of business, loss of revenue, loss of data or damage to reputation.
In the event of prolonged unavailability of the studio for health reasons or force majeure, the schedule is suspended by operation of law and rescheduled as soon as possible. If the unavailability exceeds sixty days, either party may terminate the contract; the sums exceeding the work performed are then returned to the client, with no indemnity on either side.
Where the studio processes personal data on behalf of the client, the parties enter into a processing annex compliant with article 28 of Regulation (EU) 2016/679 (see the annex below), specifying the nature of the processing, its duration, the security measures and the fate of the data at the end of the contract.
Unless the client refuses in writing, the studio may cite the client's name, present visuals of the delivered product and mention it among its references, for commercial reference purposes.
1. Parties and roles. The client is the data controller; SDO Studio (Séléna d'Orion, sole trader, SIRET 883 152 373 00014, Nice) is the processor, for the sole processing operations needed to design, develop, put into production and maintain the product described in the contract.
2. Nature and purpose of the processing. Hosting, development, testing, correction and technical operation of the product. Categories of data: those the product collects (identity, contact details, entered content, connection data and payment data processed by the payment provider), as described in the proposal. Data subjects: the users of the client's product.
3. Duration. The term of the contract and of the interventions that follow it.
4. Instructions. The processor processes the data only on the client's documented instructions, including for any transfer outside the European Union; it informs the client if an instruction appears to infringe the Regulation.
5. Confidentiality. The processor undertakes to keep the data confidential; every person authorised to process the data is bound by the same obligation.
6. Security. Measures in place: access through named accounts and one-time codes, limited sessions, encrypted exchanges (HTTPS), hosting at Google Cloud (European Union) with access rules closed by default, logging of management actions, secrets kept out of the code, backups by the hosting provider.
7. Sub-processors. Google Cloud / Firebase (hosting, database, authentication, notifications), Stripe (payment), Resend (email delivery), and the artificial-intelligence or translation services named in the proposal. The client is informed of any change and may object to it.
8. Rights of data subjects. The processor assists the client in answering requests to exercise rights (access, rectification, erasure, portability, objection) as far as possible.
9. Data breach. The processor notifies the client of any personal data breach without undue delay after becoming aware of it, with the elements needed for notification to the supervisory authority (CNIL).
10. End of contract. At the end of the services, at the client's choice, the data are returned or deleted and existing copies destroyed, unless a legal obligation requires retention.
11. Audit. The processor makes available to the client the information needed to demonstrate compliance with its obligations and allows reasonable audits, agreed in advance.
Version of 14 September 2026. A signed contract remains governed by the version in force at its signature.