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Top Rated App Design Software with Open source - Page 3

Last updated: November 2026

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116 software options

HotGloo logo

Online, interactive wireframing & prototyping tool

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With HotGloo's run-anywhere web-based tool supports comments, notifications and live communication or review wireframes with clients. It offers library of interactive elements (prebuilt menus, sign up forms, nav bars). Prototype for the web or use the latest iPhone & iPad UI widgets.

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Devum logo

If You Can Dream It, You Can Build It

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Devum® is a low-code platform that enables users to create enterprise-grade web and mobile applications. With Devum®, streamline operations, enhance engagement, and automate processes. The platform provides integrated software solutions that yield tangible ROI. Deploy on cloud of your choice.

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Wavity logo

Frictionless business on a budget

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Wavity enables organizations to build easy-to-use digital workflows quickly and cost effectively.

We offer solutions to support many digital workflows - IT, Sales and Marketing, HR, Work and Project Management and other workflows that are unique to your organization and your teams.

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Chapitô logo

For your event, your application. Create it!

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Chapitô allows event organizers to create a custom mobile application at low cost and without web and mobile development skills.

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Plant an App logo

Low-Code Development Platform

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Plant an App is a user-friendly low-code platform that offers the flexibility & customization capabilities users need to create & deliver software solutions faster. The software was built to be used by anyone, from business users to professional developers.

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Visual LANSA logo

Application development software for IT professionals

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Visual LANSA is a cloud-based application development solution designed to help software developers build multi-experience applications for web, desktop, and mobile devices. The WYSIWYG screen editor allows teams to improve any aspect of existing applications using a single programming language.

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Supernova logo

Build better products, faster

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Supernova accelerates product development - from idea to prototype, spec, and final feature - cutting the time manual processes take. Built on the world’s most powerful design system platform, trusted by thousands of product teams, it supercharges your delivery like you've never experienced before.

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Zeroqode logo

Zeroqode: No-code app templates, courses, plugins and more.

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No-code technology is eliminating the barriers to starting impactful startups. You no longer need a technical co-founder or VC financing to get started with your idea.

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Penpot logo

Penpot: Full-stack design

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Penpot is the open-source design platform for teams that build digital products at scale.


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Astah UML logo

Focused UML modeling with AI assistance

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Astah UML supports application design with UML 2.x models of structure and behavior. Reverse-engineer Java code into class diagrams, generate sequence diagrams from code with AI Code Reverse, and let AI agents read and edit your models through a local MCP server (your own API key required).

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Zorp logo

Apps for mobile workforce, in minutes

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Zorp is a no-code tool which can help you create apps for your internal use cases in minutes. With Zorp, you can manage tasks, users and automate workflows.
Say no to Google Forms and Whatsapp groups.

Zorp is highly collaborative and can be used across your organisation.

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smapOne logo

Create apps and optimize processes. No coding is needed.

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Designed in Germany, smapOne is a no-code application-building solution that helps businesses create business apps via artificial intelligence (AI) technology.

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Softools logo

Enterprise-Grade DIY Apps

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The Softools Web App is a quick and simple way to bring your business process into the 21st century. Whether your process lives in Excel, on paper, or a legacy system, any problem process can be tamed and turned into a Softools App.

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Caspio logo

AI platform for building custom business applications.

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Caspio is an AI platform for building custom business applications: the databases, portals, dashboards, and workflow tools organizations rely on to run operations.

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Moqups logo

Wireframe, Diagram & Whiteboard Online

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Moqups is a cloud-based visual collaboration tool that helps organizations create & validate functional prototypes for designing websites or mobile applications. Whiteboard functionality lets teams collaborate on wireframes, mockups, and diagrams, and develop sitemaps, storyboards or flowcharts.

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Firefly logo

Design Annotation and Prototyping tool

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Firefly is a design annotation tool that allows teams to share their visuals (mockups, sketches, pictures, even existing web page) and add comments directly on top of them.

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eLegere logo

All-in-one Low-Code & No-Code Application Building Platform

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eLegere is a Low-Code and No-Code application building platform for process management. It transforms shadow and unstructured operational processes and data into centralized, AI-ready digital assets.

It's available on-premises, in cloud, and in hybrid mode.

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Kalipso Studio logo

Low-code mobile app generator for Android, iOS, and Windows.

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With no developer knowledge needed and a common design platform for Windows, Android, and iOS, Kalipso Studio is a low-code platform that can drastically reduce a user's project development costs and time.

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Backlight logo

Collaborative platform for design systems on the code-side

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Collaborative platform to manage design systems on the code side and build reusable components, stories and documentation. The source of truth for front-end teams.

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ProtoPie logo

The number #1 tool for advanced prototyping.

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ProtoPie is an advanced prototyping tool favored by top firms like Google and Meta. It enables designers to create realistic, interactive prototypes for web, mobile, and IoT, enhancing design workflows with ease and efficiency.

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Daxium-Air logo

The all-in-one solution for custom app building

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Daxium-Air is a no-code platform that enables users to create customized web and mobile applications without coding. It allows teams to collect, share, and compile field data, automate processes, and manage client interactions. Daxium-Air offers personalized web and mobile solutions, real-time dashboards, automated reports, and the ability to track field teams and consolidate data with existing systems.

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Sofy logo

The modern no-code testing platform for engineers

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Sofy is a no-code test automation platform that uses AI powered testing to enable “create once and run anywhere” tests without a single line of code. Using our library of real devices, run manual, automated and exploratory tests, and release great apps.

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Draftbit logo

Open-source React Native visual builder with Expo built-in

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Draftbit is a web-based app building software designed to help businesses create, launch, and customize mobile applications from within a web browser. The platform lets teams penalize every detail of the application using advanced properties, custom codes, and themes.

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Pega Platform logo

Business process management software

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Pega platform is a business process management software designed to help organizations in various industries, including retail, financial services, and healthcare enhance customer loyalty, generate new business, and improve productivity. It helps companies manage and automate their business processes, offering features like self-service portals, analytics and reporting, workflow automation, and management of documents.

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Bubble logo

The best way to build web apps without code.

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Bubble is a full-stack platform for building, launching, and hosting web applications – all without needing to write code.

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