9 Best App Builders to Try in 2025 (For Web & Mobile Apps)

Building mobile and web apps no longer requires coding skills.

Modern app builders use visual interfaces and AI-powered tools to turn your idea into reality. You describe what you want, and they generate working apps that can be deployed to the App Store or Google Play.

Many platforms also support real-time previews to speed up app development and streamline the build process.

We spent weeks testing app builders to find the best options based on output quality, ease of use, and value for money.

Our top picks:

• Instance: Best for beginners using conversational AI
• FlutterFlow: Best for native mobile apps
• Builder.io: Best for design-to-code conversion
• Rork: Best for React Native apps
• Origin AI: Best for internal enterprise tools
• Adalo: Best for marketplace and community apps
• Bubble: Best for highly scalable apps
• Softr: Best for client portals and internal tools
• Passion.io: Best for creator-focused community apps

Let’s explore each of them in detail.

1. Instance: Best AI app builder for beginners and personal use

Instance is an AI app builder that turns product ideas into code—perfect for both personal and professional use.

You can create a custom app for web/mobile, or a website — simply by describing what you want.

For example, you could build a feedback app for clients, an internal CRM, a dashboard for tracking analytics, or an app that generates bedtime stories for your kid.

Then, refine your application through a simple conversation. 

Ask for new features, change colors, or modify layouts with natural language instructions.

Most projects go from concept to working prototype in minutes rather than days. Instance handles interface design, backend logic, database structure, and API integrations automatically.

The platform also handles both interface design and backend logic simultaneously. 

This means you can create not just the visual elements and screens, but also the database structure, user authentication, and functional workflows—without any coding.

Top features

• AI generation: Create functional apps from text descriptions
• Rapid iteration: Make changes by typing simple prompts or using visual editing
• Full-stack capabilities: Build both frontend interfaces and backend systems
• User authentication: Implement secure login systems automatically
• Database integration: Set up and connect to data sources without configuration
• Code export: Download the generated code for further customization

Pricing

• Free tier: Limited access to core features
• Paid plans: Start at $10/month 

2. FlutterFlow: Best for building native mobile apps

FlutterFlow turns UI design into native mobile applications through a visual editor.

The platform uses a drag-and-drop approach. 

You can build interfaces by selecting from 200+ pre-designed UI components and connecting your app logic.

What makes FlutterFlow stand out is its focus on native mobile app development. 

Your apps run directly on the device's operating system rather than through a browser, giving them faster performance and access to features like cameras and GPS. 

This matters for users creating customer-facing mobile apps where speed and user experience are critical.

Top features

• Visual UI builder: Use the drag-and-drop interface with 200+ UI components
• Visual logic editor: Build app logic through the Action Flow Editor without code
• Data connections: Use native integrations with Firebase and Supabase databases
• Custom design systems: Import themes from Figma or create your own
• Team collaboration: Branch-based development with comments and task assignment
• Code ownership: Export your Flutter code anytime with no vendor lock-in

Pricing

• Free tier: Limited version for building and testing
• Paid plans: Start at $30/month

3. Builder.io: Best AI app maker for design-to-code conversion

Builder.io transforms Figma designs into working code for apps. 

This eliminates the traditional handoff process between designers and developers.

Instead of designers creating mockups and then waiting weeks for developers to implement them, teams can generate working prototypes in minutes. 

Marketing departments can also use this to quickly create landing pages and campaign sites without developer resources. 

For product teams, it helps test functional prototypes with real users before committing engineering time to full implementation.

Top features

• Design-to-code conversion: Import Figma designs and convert them to functional code
• AI code generation: Build applications from text prompts with Fusion
• Repository integration: Connect to GitHub to leverage your existing components
• Visual editor: Modify generated code through a drag-and-drop interface
• Multi-platform support: Create web apps, marketing sites, and ecommerce website prototypes
• Enterprise collaboration: Add team workflows with roles and permissions

Pricing

• Free tier: Limited version for individuals 
• Paid plans: Start at $24/month

4. Rork: Best for creating quick mobile apps

Rork is an online app builder that generates React Native mobile apps for both iOS and Android from text prompts.

Describe the app you want to build, and the AI creates functional code. You can then test it on your phone using a QR code scanner.

It works best for non-developers looking to create simple applications like fitness trackers, to-do lists, and marketplace apps.

Entrepreneurs can use it to validate their mobile app ideas before investing in professional development. 

Small business owners can create customer-facing apps to compete with larger companies that have dedicated development teams.

Top features

• React Native foundation: Create mobile apps that work on iOS and Android
• QR code testing: Scan to preview mobile apps on physical devices
• Database integration: Store user data and enable features like posts and likes
• GitHub connection: Sync code to repositories (available in paid plans)
• Code editor: Access and modify generated code (available in paid plans)
• Template library: Start with pre-configured app templates

Pricing

• Free tier: Limited version for testing the tool
• Paid plans: Start at $20/month

5. Origin AI: Best for building internal business apps

Origin AI works especially well for mid-sized companies that need custom internal tools.

For example, finance teams use this no-code app builder to create expense trackers, while HR departments can build internal employee management tools.

We tested it by creating an internal calendar booking tool:

The platform also offers powerful enterprise features. 

It handles complex data relationships, multi-step workflows, and role-based permissions for complex internal business processes.

Top features

• Complete application generation: Create both frontend and backend code
• Deployment flexibility: Host apps on Origin's cloud or your own infrastructure
• Templates: Use pre-built starting points for business apps and admin panels
• Source code access: Download and modify your application's code
• CI/CD pipeline: Use automated deployment and testing for your apps
• Team collaboration: Add multiple user accounts with different permissions

Pricing

• Free tier: For building apps with limited tasks
• Paid plans: Start at $25/month

6. Adalo: Best for creating business apps

Adalo is a visual app builder you can use to create business products.

It works perfectly for building marketplace, community, and booking platforms. 

Small businesses can also use it for appointment scheduling, booking systems, payment collection, customer management, and more.

What sets Adalo apart is its focus on business functionality rather than just design. 

The platform includes specialized components for user management, content sharing, messaging, and document handling to power business operations.

Top features

• Drag-and-drop interface: Create apps by arranging components visually
• Responsive design: Build once and deploy to mobile and web platforms
• Database capabilities: Store and manage information with built-in databases
• Payment processing: Integrate with Stripe for in-app purchases and subscriptions
• User authentication: Create member-only areas with login systems
• Component marketplace: Extend functionality with additional components

Pricing

• Free tier: For building apps with limited tasks
• Paid plans: Start at $45/month

7. Bubble: Best for building production-ready web apps

Bubble is great option if you have a business idea you want to implement without hiring a team of developers.

What makes it production-ready is its comprehensive backend capabilities. 

The platform includes built-in database creation with custom data types and relationships, scheduled workflows that trigger automatically, and enterprise-grade security features like data encryption.

This app builder also offers features typically found in professional development environments: version control with branches, change history tracking, and security vulnerability scanning. 

All these tools help manage larger projects as they grow from initial concept to product release.

Top features

• Full-stack capabilities: Use a backend database and frontend interface in one platform
• Workflow automation: Schedule tasks and create multi-step business processes
• Security compliance: Add SOC 2 Type II certification and encryption for production data
• Version control: Leverage the collaborative development with branches and change tracking
• AI integration: Connect to OpenAI, Anthropic, and other AI services
• Mobile publishing: Create and submit native iOS and Android applications

Price

• Free tier: Available learning and development
• Paid plans: Start at $29/month 

8. Softr: Best for client portals and knowledge bases

Softr generates business applications by connecting to your existing data sources rather than building databases from scratch.

The platform is designed for specific business use cases: client portals where customers can access their project information, vendor portals for partner management, and internal knowledge bases for company resources. 

For example, you can use it to replace spreadsheets and manual emails to give clients direct visibility into project status.

Softr connects with 14+ external data sources, including Airtable, Google Sheets, SQL databases, Notion, and HubSpot. 

This means you can build interfaces on top of data you already manage in other tools without migration or duplication.

Top features

• User permissions: Control what information different users can access
• Pre-built blocks: Build applications from ready-made components
• Data source connections: Connect to Airtable, Google Sheets, SQL, Notion, and more
• Portal templates: Use templates for client, vendor, and employee portals
• Mobile publishing: Convert web apps to mobile apps with one click
• Workflow automation: Create custom actions for business processes

Pricing

• Free tier: For trying out basic features
• Paid plans: Start at $59/month for simple projects

9. Passion.io: Best for creator-focused community apps

Passion.io is a specialized app maker for content creators, coaches, and course instructors. 

It supports a variety of use cases, including:

• Subscription fitness program for personal trainers
• Interactive courses with community features for business coaches
• Membership apps with exclusive content for content creators

The platform also offers specialized features for digital content businesses: subscription management, drip content scheduling, interactive courses, and community forums. 

Top features

• Course creation: Build interactive learning experiences with progress tracking
• Community tools: Create member forums and social-media-like engagement
• Content delivery: Schedule drip content and offer on-demand videos/audio
• Monetization options: Set up subscriptions, one-time purchases, and coaching sessions
• Push notifications: Send updates and reminders to keep users engaged
• Offline sync: Allow users to download content for offline viewing

Pricing

• Paid plans: Start $119/month

How we chose these no-code AI app builders

We tested 30+ app builders and picked these 9 because each one solves a different need really well.

This hands-on approach with different use cases—from client portals to inventory systems—revealed their core strengths and limitations.

We focused on these key factors:

• App quality: We assessed the functionality, design, and reliability of applications created with each platform.
• User-friendly experience: We evaluated how easy each tool is to navigate for users without technical backgrounds.
• Customization options: We looked at how much control users have over their applications while still maintaining a no-code approach.
• Integration capabilities: We tested connections with common business tools and data sources.
• Value proposition: We compared pricing structures against actual capabilities to identify the best investments.
• Specialization: Finally, we identified each platform's particular strengths to help match tools to specific use cases.

Choose the best app builder tool for your project

Selecting the right app builder depends on your specific needs, technical skills, and project goals. 

Based on our testing, here are our top recommendations for different use cases:

• Instance: Best no-code platform for beginners creating their first apps or professionals needing quick prototypes
• FlutterFlow: Best for building native mobile apps with professional performance
• Bubble: Best for creating complex web applications with custom workflows
• Origin AI: Best for internal business tools that replace spreadsheet-based processes
• Passion.io: Best for content creators monetizing expertise through community apps