Your custom development agencyweb, mobile, API & AIin Switzerland

SOLIS brings design, development and SEO expertise together in one team to create fully custom solutions—never template-based. From our base in Martigny, we draw on more than 10 years of experience and over 100 completed websites and applications. You receive an initial interactive prototype with your proposal, then track each stage and the hours spent on your project through your client area.

We begin by defining your objectives, content and user journeys, then prepare an initial interactive prototype together with a detailed proposal. Once the agreement is signed and the deposit paid, the prototype enters an iterative phase: we refine it with you until you are completely satisfied. Development starts only after your full approval, so the intended outcome is clear before any code is written. Testing, launch or delivery follows, with a client area where you can view milestones, progress and the hours spent on the project.

The prototype supplied with the proposal is an initial clickable version of your future solution. It gives you a tangible view of the design, structure, user journeys and key content, while helping us estimate the scope, hours and budget accurately. It is free and carries no obligation. If you accept the proposal, it becomes our working foundation: after the deposit, we refine it as much as needed until you give full approval, and only then do we begin development.

Prices start at CHF 5,000 for a website, CHF 7,500 for an e-commerce site and CHF 10,000 for a mobile application or business software. The final amount depends on the features, content, automations and integrations that genuinely add value. Because the proposal is prepared alongside an initial interactive prototype, we can estimate the scope and hours based on something tangible rather than an abstract idea.

A 50% deposit confirms the project and starts the feedback and prototype-finalisation phase. We refine it until you are entirely satisfied; development begins only after you approve the design and user journeys. The final invoice is then adjusted to reflect the work actually completed: unused hours are deducted, and any additional hours are discussed and approved with you before they are incurred.

You can email info@solisdev.ch, call +41 77 280 74 89 or contact the team on WhatsApp. SOLIS is based at Rue du Simplon 86 in Martigny and works with clients throughout French-speaking Switzerland.

SOLIS creates marketing and corporate websites, editorial platforms, online shops, mobile applications and business software. Every solution is designed around your objectives, users and the way your organisation actually operates. The design, CMS, user journeys and integrations are therefore tailored to your needs, without imposing the features or limitations of a generic product.

With a custom solution, we do not have to work around a theme’s constraints to tailor your design: your identity, content and user journeys are the starting point. The solution is not tied to third-party theme updates that can overwrite customisations and force them to be rebuilt. It loads only the code it needs, is easier to evolve and avoids a stack of plugins, scripts, licences and subscriptions. The initial investment may be higher, but the result is faster, easier to control and often more cost-effective over time.

We mainly support SMEs, start-ups, independent professionals and teams that need a website or tool genuinely suited to their work. A custom approach is particularly valuable when a strong identity, a specific user journey, streamlined content management or business tools need to come together in one solution. We can collaborate in Martigny, anywhere in French-speaking Switzerland or remotely.

As a guide, a complete website or e-commerce project may take two to three months, while a mobile application generally takes four and a half to six months. These estimates include scoping and the initial prototype, iterations, development, testing and launch or delivery. The schedule depends on the scope, integrations, content availability and how smoothly feedback and approvals progress with your team. The proposal then sets out a detailed timetable based on a clearly defined scope.

A template is a pre-designed visual and functional model, such as a WordPress or Shopify theme. It speeds up a standard project, but imposes a structure, components and often a predetermined set of dependencies. A custom solution instead begins with your objectives, identity and your team’s real working practices. SOLIS develops both the visitor-facing experience and the admin area used by your team. A content management system (CMS) is therefore not a third way to design a site; it is the tool that lets you manage its copy, images, pages or products without touching the code. In a SOLIS solution, the CMS is created or configured specifically to show only the fields and actions you actually need. For an online shop, Shopify can serve as the CMS while the theme, user journeys and visible features are custom-developed.