Make a Agency Site App with Flutter

What This App Does

A Agency Site app serves a specific need in today's mobile-first world. Building one with Flutter means you ship to iOS, Android, and the web from a single codebase, cutting development time dramatically while keeping a native-quality experience.

Main Features

Feature	Why It Matters
Portfolio Grid	Responsive masonry grid of past projects with category filters
Service Cards	Visually distinct cards for each service offered (design, dev, marketing)
Testimonial Carousel	Auto-rotating client quotes with star ratings and avatars
Contact Form	Validated form that sends an email via a backend API endpoint

How to Make a Agency Site App with Flutter

Portfolio Grid

class PortfolioGrid extends StatelessWidget {
  final List projects;

  const PortfolioGrid({super.key, required this.projects});

  @override
  Widget build(BuildContext context) {
    return SingleChildScrollView(
      child: Column(
        children: [
          Wrap(
            spacing: 8,
            children: ['All', 'Web', 'Mobile', 'Design']
              .map((cat) => FilterChip(
                    label: Text(cat),
                    selected: cat == 'All',
                    onSelected: (_) {},
                  ))
              .toList(),
          ),
          const SizedBox(height: 16),
          MasonryGridView.count(
            crossAxisCount: 2,
            mainAxisSpacing: 8, crossAxisSpacing: 8,
            shrinkWrap: true,
            physics: const NeverScrollableScrollPhysics(),
            itemCount: projects.length,
            itemBuilder: (ctx, i) {
              final p = projects[i];
              return Card(
                clipBehavior: Clip.antiAlias,
                child: Column(
                  crossAxisAlignment: CrossAxisAlignment.start,
                  children: [
                    Image.network(p.imageUrl, fit: BoxFit.cover),
                    Padding(
                      padding: const EdgeInsets.all(12),
                      child: Text(p.title, style: const TextStyle(fontWeight: FontWeight.bold)),
                    ),
                  ],
                ),
              );
            },
          ),
        ],
      ),
    );
  }
}

Recommended Libraries

Package	Purpose
flutter_staggered_grid_view	Masonry layout for portfolio items
url_launcher	Open email client and phone dialer
http	Submit contact form to backend

UI & UX Suggestions

Use a white background, blue primary, accent orange for CTA buttons colour palette to match the app's purpose. Keep the navigation simple — a bottom nav bar or a single-scroll layout works best for this type of app. Make sure every interaction provides haptic or visual feedback so the app feels responsive and polished.