French software publisher · governance · digital sovereignty

Turnkey software solutions.

HelloStay designs and builds web and mobile applications, APIs, and integrates them into IT systems. End-to-end software publishing: framing, delivery, hosting, and operations. In a regulatory and geopolitical context where dependence on non-European actors becomes a strategic risk, we give organizations back control of their data.

Discuss a need

13 years of experience Delivery, IT integrations, support, and governance.
Capabilities Full-stack, JS, Python, Linux, Docker, Ansible, governance, and project management.
Scope of work Development, integration, hosting, support.

Trusted by

Clients

Public and private clients trust us with their projects.

Institutional context with high compliance and security requirements.

Mission-critical projects with rigorous integration and delivery.

All logos and trademarks belong to their respective owners.

Approach

A simple method

A clear framework to move forward, validate, and integrate without surprises.

Framing

Goals, scope, risks, IT constraints, and compliance.

Prototype

Mockups, specs, architecture choices, delivery plan.

Build

Iterative development, tests, security, documentation.

Go live

Deployment, monitoring, handover, run, and continuous improvement.

References

Portfolio

Products already delivered and deployed, with references in France, including in institutional contexts.

Folio

Financial tracking

Account tracking: bank connections, history, performance, and views by account type.

Performance curves
Breakdown by account type
Centralized bank connections

View Folio

TerriaDesk

Tickets & projects

Ticketing and projects hub: team workflows, multi-workspaces, European SaaS deployment or on-premise.

Separate workspaces
SaaS or on-premise
Data hosted in Europe (GDPR)

View TerriaDesk

A responsible partner, from framing to run.

HelloStay combines systems experience, delivery, and governance to make your web, mobile, and IT products reliable. You get a stable, governed solution, hosted in France/EU — and a clear working relationship with no gray area.

Let's talk about your need

Contact

Contact & information

A question, a need, an audit? Let's talk.

Contact

Email: contact@hellostay.fr

Availability: typically within 24-48h.

Legal information

Company name: HELLO STAY
SIREN: 979 645 082
Head office SIRET: 979 645 082 00012
EU VAT number: FR61 979 645 082
Address: 58 RUE DE MONCEAU 75008 PARIS
Legal form: SARL (limited liability company)
NAF/APE code: 82.99Z
Registered with RNE (INPI)

Location

Annecy, remote work across Europe.