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FlutterFlow Agency — Paris

Your FlutterFlow mobile app is up and running.Your back office, web version, and SI integration, however, don’t exist yet.

Scroll has built apps in FlutterFlow. We know the tool, its strengths for rapid mobile development, and the walls you always end up hitting: no web app, Firebase costs that scale quickly, no business admin, and no serious AI integration.

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Target architectureMobile + Web
Mobileexists
FlutterFlowFlutter / DartFirebase
Web + back officeto be built
Next.jsSupabasebusiness API
coexistence during the transition
Mobile service never downFirebase → Supabase gradual
01 — What we do

Three scenarios
where we step in on a FlutterFlow project.

Build the mobile app, audit the existing solution, or create the missing web layer. The right move depends on your product’s maturity—not a pre-set sales pitch.

01

FlutterFlow Development

You want an iOS/Android mobile app quickly to validate a concept or equip a field team. FlutterFlow is a smart choice for a mobile MVP—provided you don’t lock it into Firebase from the start.

Mobile MVPiOS / AndroidTime-to-market
02

Existing Solution Audit

Your FlutterFlow app works, but you need a back-office, an API for third-party integrations, or a web version. We audit what exists and propose an extension or migration plan.

AuditBack-officePlan
03

Migration to a Full Web Stack

The mobile app stays, but you need a proper web layer: admin interface, business API, ERP/CRM integrations, AI layer. We build all of this in Next.js and Supabase, ensuring both coexist until the switch.

Next.jsSupabaseCoexistence
02 — Unmet needs

What you always ask us for
after delivering a FlutterFlow app.

FlutterFlow delivers a working mobile app. But the product doesn’t stop there. Here are the four recurring needs — and the ones the platform doesn’t address.

01

A back-office to manage data

FlutterFlow builds the user-facing mobile interface. But who manages accounts, moderates content, handles permissions, or exports data? The Firebase console isn’t a business back-office. It’s one of the first needs that arises post-launch.

02

A web version accessible from a browser

A Flutter/mobile app doesn’t open in a browser. As soon as a client or colleague requests web access, FlutterFlow falls short. A separate web interface must be rebuilt from scratch.

03

Reliable SI integrations

Connecting a CRM, ERP, invoicing tool, or enterprise SSO to Firebase via FlutterFlow results in fragile, unmonitored, hard-to-debug connectors. Once the app enters a real SI environment, Firebase’s infrastructure shows its limits.

04

Generative AI on your data

Building an AI assistant, RAG on internal documents, or business agents requires a backend stack you control. Firebase and FlutterFlow aren’t designed for this.

They trusted usSee our case studies
Ubki
Perfway
Hexa
Art Explora
Bellman
Cabaia
03 — Migration stack

What we build alongside
— then as a replacement.

We start by building the missing web layer alongside the existing mobile app. Then, when justified, we replace the Firebase backend with Supabase. Each need gets its own clean, versioned, and self-hosted component.

NeedFlutterFlow / FirebaseScroll stack
Web interface & back-officeMissingNext.js, React, TypeScript
DatabaseFirebase (NoSQL, pay-as-you-go)Supabase (PostgreSQL, fixed cost)
AuthenticationFirebase AuthSupabase Auth, Auth0, SAML SSO
Business API & integrationsLimited, fragileNode.js, Next.js API routes
File storageFirebase StorageSupabase Storage, S3
AI & agentsNot feasible cleanlyNative LLM + n8n + MCP servers
CI/CD & testingAbsentGitHub Actions, Jest, Playwright
The FlutterFlow mobile app can keep running while we build the web layer. We don’t disrupt the existing service.
04 — FAQ

Frequently asked questions

The most common questions we get during scoping. If yours isn’t here, reach out!

No. The mobile app keeps working throughout the project. We build the web layer and new backend in parallel. The switch from Firebase to Supabase is gradual, with data sync during the transition.

Firebase has two issues for growing projects: usage-based costs become hard to predict, and data is hosted with Google in the US. For sensitive data or contexts where sovereignty matters, this is a dealbreaker.

Yes, that’s often the first step. We build a Next.js back-office that initially connects to Firebase, then we gradually migrate the database to Supabase when justified.

For a simple back-office + business API: 6 to 10 weeks. For a full overhaul with Firebase → Supabase migration: 3 to 5 months, depending on data volume and workflow complexity.

For non-critical mobile MVPs, yes. For projects needing a web app, SI integrations, or AI from the start, we recommend a web stack and using a PWA or React Native if mobile is essential.
Get started

Your FlutterFlow app is in production. The rest of the product, however, isn’t yet.

We’ll review together what’s missing and how to build it without breaking everything.

Contact details
contact@agence-scroll.com
+33 6 48 03 90 27
20 Rue des Taillandiers
75011 Paris
Response within 24 business hours.