Applications web mobile

Guides and resources on custom web applications (Next.js + PostgreSQL) and mobile applications (PWA).

Clearly define the difference between a site, a Headless site, a web app and a mobile app — without jargon, with concrete examples.

The 5 signals that indicate a project moves out of the website scope into applicative territory. A simple test, concrete examples, a recommendation at the end.

The 4 concrete limits of WordPress facing an applicative project — illustrated by real cases. And why forcing the CMS past these limits costs more than a custom build.

Breaking down a web app: front, database, autonomous admin, hosting. Understand what's under the hood of a Next.js + PostgreSQL platform — without becoming a developer.

A decision-grade comparison, concrete examples, when each one wins and when one advantageously replaces the other.

The key promise of a custom web app on the management side: you stay in control day-to-day, without ongoing technical dependency.

Cost breakdown (scoping, design, dev, infrastructure, maintenance), ranges by typology, levers for reduction (TIH/OETH), traps to avoid.

Standard phasing of an applicative project (scoping, MVP, V1, evolutions), illustrated by Panorama Pub delivered in 2 months. What takes time, what can be sped up.

Product strategy, technical fundamentals, monetization models, Panorama Pub feedback. Questions to ask before committing a budget.

When to invest in custom rather than a market SaaS — criteria, ROI, independence. An honest decision grid, no dogma.

Geolocation, offline, home screen, notifications — what changes vs a responsive mobile site. The 2026 PWA maturity check.

Authentication (sessions, JWT), roles, GDPR, reduced attack surface — without technical overload. What a web app commissioner should understand.

When and how to leave a SaaS to regain control of your data and business logic. Criteria, steps, traps, real-world feedback.