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Your application development agency
in Perpignan

Before building our own method, we saw — and experienced — everything that doesn't work in app development.

Let's talk about your project
?

Your partner for custom applications

EPREYN is an app development agency based in Perpignan, in the Pyrénées-Orientales. We build mobile apps for iOS and Android, web applications, SaaS platforms, business software, custom CRM and ERP — always tailored to your company's exact needs.

From the app prototype to deployment, you get a single point of contact: a local developer fluent in both Flutter for mobile and Laravel for web. Our approach — see your app before you pay, a fixed price per component — guarantees app creation with no nasty surprises.

Whether you are an SME in the Pyrénées-Orientales, a craftsman or an entrepreneur with a custom app idea, we turn your project into a concrete, reliable and scalable tool.

Our journey

From flat-rate pricing to total transparency

01

The observation

For years, we worked with the classic model: flat-rate, rough estimates, hoping everything works out. We kept seeing the same frustrations repeat — on the client side and the developer side.

02

The insight

The real problem isn't the price. It's the misalignment from the start. The client describes a feature, the developer interprets it differently. Result: tension, surprises, budget drift. Nobody wins.

03

The solution

We built a system where you SEE your application before committing, where each component has a transparent fixed price, and where payment adapts to your pace. No grey areas, no bad surprises.

The alarming reality

The real problem isn't the price

It's the misalignment from the start between you and the agency.

Budget
overruns

0%

Approximate estimates at the start of a project inevitably lead to gaps between the initial quote and the final invoice.

Source of tension and mistrust.
1
2

Disappointing
results

0%

You don't really know what you'll get before paying. The delivered app doesn't match what you imagined.

Frustration and feeling cheated.

Unbalanced
system

0%

The traditional fixed-price model creates imbalance: some clients pay more than the value received, others less.

An unbalanced relationship from the start.
3
Our difference

What sets EPREYN apart, your application developer

Visualization before payment

During our meetings, you discover every screen, every interaction, and every detail of your application in complete mockups. Comment, suggest adjustments, and validate before a single line of code is written.

Fixed prices per component

Every component of your application — screen, button, form, feature — has a fixed, transparent cost in our catalog. No hidden fees, no surprise estimates.

Flexible payment, no fees

Spread your investment over the project duration with no interest or additional fees. Your app development project becomes accessible regardless of your current cash flow.

Complete mockups included

Every screen of your application is mocked up in detail before development begins. Navigation, interactions, visual design — everything is designed and validated with you to ensure a result true to your vision.

Quote adjusted in real time

Your project evolves? Add screens, remove features, change priorities — the quote adjusts automatically. You always know the exact impact of each decision on the budget.

No billing surprises

What we quote is what you pay, period. Our component-based pricing eliminates the surprise invoices and budget overruns that plague traditional development projects.

Frequently asked questions

Everything about our method

We show you the mockups in detail during our meetings, but we don't send them by email. Why? To protect our design work and your investment in the process. This prevents a competitor from copying our work or mockups being shared without context. You can see them, comment on them, request adjustments — in full transparency.

That's planned! Each component in our catalog has a creation price and a modification price. If you want to change an element after validation, you know the exact cost in advance. No "it depends" or negotiation — it's transparent and predictable.

Imagine an à la carte menu: each element of your application (screen, button, form, feature...) has a fixed price in our catalog. During mockup creation, we identify all necessary components. The quote = the sum of these components. You can add or remove elements, and the price adjusts automatically.

No, there are no additional fees or interest. Flexible payment is a service we offer to make projects accessible. €10,000 over 5 months = €2,000/month, period. The schedule is defined together based on your cash flow and project duration.

It depends on complexity, but a typical project lasts between 2 and 6 months. The mockup phase usually takes 2-4 weeks, then development follows the pace of validations. The advantage of our method: you have a clear view of the timeline once the mockup is validated.

Ready to launch your application
in Perpignan?

Book a call for a first exchange with no commitment.

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