Business owners and SMEs
Replace spreadsheets and scattered tools with a business app built around how you work.
Discuss your projectDigital studio in Paris
App and SaaS development agency in Paris
Running a business or holding an app idea? Kreapp works with you in Paris and the Île-de-France region, from the first idea to a live app used by your customers or your team.
01Who is it for?
Who is it for?
Founders and entrepreneurs
Turn an idea into an MVP or SaaS you can show, test and sell quickly.
People with an app idea
Clarify your need, focus on what matters and avoid building what nobody uses.
02From idea to live app
From idea to live app
Scoping
A meeting in Paris or by video to understand your business, users and priorities.
Design
Key screens and user journey, validated with you before development.
Development
A usable first version in three months, with regular demos.
Launch and support
Quality testing, security, go-live, then improvements and maintenance.
03See our work
Apps already in production
Make every alert actionable
A client portal that surfaces urgent actions at the right moment and clarifies every step of the journey.
Explore the projectHi, how can I help you?
I can manage your clients, tasks and meetings, draft emails, find documents and more.
Unreplied emails (48h+)All caught up — no emails are overdue for a reply.
Alerts234 overdue tasks10 tasks due in 3 days
My overdue tasksClient summaryThis week's meetingsDraft an emailPipeline overviewCreate tasksFind a documentExport clients
An agent that prospects for you
A sovereign AI agent that searches, qualifies, writes and follows up: CRM, emails, sequences and meetings in a single GDPR-compliant app.
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Rent a campervan in minutes
A campervan rental platform in Mallorca: online booking, deposit, signed contract and condition reports.
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Keep remote control of energy use
Real-time smart-meter and home-automation monitoring for rented homes: smart alerts, suspicious occupancy detection and reports ready to re-invoice.
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04Frequently asked questions
Frequently asked questions
How much does it cost to build an app in Paris?
It depends on features and users. We give you a clear estimate after a free first call. Our Budget & ROI article details real costs.
How fast can my app be ready?
We aim for a usable first version in three months, often less for an MVP.
I'm not technical, is that a problem?
No. We turn your idea into screens and features and guide you at every step.
Can we meet in person?
Yes, we work with companies in Paris and Île-de-France and can meet on site or by video.
Have an app idea?
Let's talk. One conversation is enough to see how to make it real.
Talk about your project