Best App Prototyping

178+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated June 2026

From beginner-friendly picks to power-user tools, our app prototyping list covers 178+ iPhone apps updated through June 2026. Compare ratings, prices, and screenshots in one place.

Top Picks for App Prototyping

Pixelmost: AI App Prototyping#2

Pixelmost: AI App Prototyping by Appmost AB

Prototype & Create App Mockups
Strong Contender
🎨 Graphics & Design
4.3(4 ratings)
FreeAdsIn-App Purchases
Pixelmost: AI App Prototyping screenshot 1
Pixelmost: AI App Prototyping screenshot 2
Pixelmost: AI App Prototyping screenshot 3
Pixelmost: AI App Prototyping screenshot 4
Pixelmost: AI App Prototyping screenshot 5
Pixelmost: AI App Prototyping screenshot 6

Effortlessly design stunning app mockups with a next-generation tool powered by AI, allowing you to visualize, refine, and export your ideas quickly. Create high-quality designs with ease using AI-driven features, pre-built templates, and intuitive editing tools, and start bringing your creative vision to life today.

Xpage - Prototyping Design#3

Xpage - Prototyping Design by 刚 彭

App Prototyping Maker
Worth Considering
🎨 Graphics & Design
4.3(67 ratings)
FreeIn-App Purchases
Xpage - Prototyping Design screenshot 1
Xpage - Prototyping Design screenshot 2
Xpage - Prototyping Design screenshot 3
Xpage - Prototyping Design screenshot 4
Xpage - Prototyping Design screenshot 5

Create and demonstrate app prototypes directly on your mobile phone with an easy-to-use tool. Design, prototype, and share your app ideas with features like data-driven and event-driven interactions, animation, and customizable native components.

More App Prototyping apps to explore

4
Marvel — Design and Prototype
Marvel — Design and Prototype
Marvel — Design and Prototype
Design and Prototype Apps
Free

Transform your app ideas into interactive prototypes with ease using Marvel. Design and link screens from sketches or mockups, then share and demo your creations seamlessly via Email, SMS, or Twitter. Access and edit your prototypes across devices for ultimate convenience. Start prototyping now!

📊 Productivity
(2.6K)
5
App Store Connect
App Store Connect
App Store Connect
For App Developers
Free

Manage your apps, beta tests, submissions, and performance with ease. Stay updated on key events in real-time. Elevate your app development experience today.

🛠️ Developer Tools
(14K)
6
Mockup - UI/UX Design
Mockup - UI/UX Design
Mockup - UI/UX Design
Sketch, Wireframe, Prototype
Free

This application allows users to design and create visual mockups of user interfaces for websites and mobile apps. With features for drag-and-drop elements, customizable templates, and collaboration tools, users can quickly prototype designs. Try it now to streamline your UI design process!

🎨 Graphics & Design
(52)
7
App Studio: Create an app
App Studio: Create an app
App Studio: Create an app
for Businesses, Orgs and Teams
Free

Create your own mobile app with ease using our code-less developer tool, perfect for businesses, teams, organizations, and events. Design, customize, and publish your app without any coding knowledge required. Subscribe for access to additional features starting at $14.99/month.

💼 Business
(2.3K)
8
Lovable: Build Apps With AI
Lovable: Build Apps With AI
Lovable: Build Apps With AI
Build Websites & Tools Fast
Free
📊 Productivity
(383)
9
TestFlight
TestFlight
TestFlight
Beta testing made simple
Free

TestFlight simplifies beta testing for apps and App Clips, allowing developers to gather feedback before launch. Testers can provide valuable insights through crash logs and usage information, improving app quality. Visit testflight.apple.com for installation instructions and data handling details.

🛠️ Developer Tools
(77K)
10
ProtoPie Player
ProtoPie Player
ProtoPie Player
Code-free Prototyping Tool
Free

This code-free prototyping tool companion app allows users to view, experience, and test prototypes on iOS and iPadOS devices, accessing them from the cloud or locally. Ideal for designers, stakeholders, and users, it enables easy testing, remote usability testing, and interaction design validation.

📊 Productivity
(26)
11
Replit: Vibe Code with AI Fast
Replit: Vibe Code with AI Fast
Replit: Vibe Code with AI Fast
Idea to app, fast
Free

Code projects effortlessly from anywhere with Replit - the ultimate platform supporting hundreds of languages and frameworks. Collaborate in real-time, deploy instantly, clone projects, set up custom domains, and more. Whether you're a beginner or an expert, Replit is your go-to for coding projects on the go!

🛠️ Developer Tools
(18K)
12
Appifex - AI App Builder
Appifex - AI App Builder
Appifex - AI App Builder
Generate apps with vibecoding
Free
📊 Productivity
(18)
13
'Proto' for Figma
'Proto' for Figma
'Proto' for Figma
Inofficial Figma Prototype-App
Free

Experience full-screen prototypes designed in Figma on your smartphone, exactly as you created them with the Figma Mirror app. Save prototypes for quick access and seamless viewing. Explore 'Proto' now!

🛠️ Developer Tools
(24)
14
Blanks - AI App Builder
Blanks - AI App Builder
Blanks - AI App Builder
Vibe code apps in minutes
Free

Create your own app in minutes with a personal software studio powered by AI, where you can build, edit, and customize your mini-app with features and design ideas, and collaborate with friends in real-time. Get started now and turn your ideas into reality without coding or setup!

📊 Productivity
(45)
15
Expo Go
Expo Go
Expo Go
by Nametag
Free

Build interactive projects using web technologies with Expo Go on your iOS device and computer. Develop experiences with gestures and graphics using JavaScript and React. Join now to start creating!

🛠️ Developer Tools
(3.2K)
16
Origami Live
Origami Live
Origami Live
Design Prototyping
Free

This companion app allows users to take interactive UI prototypes created on a Mac to their iPhone or iPad, enabling on-the-go testing and sharing. Try it out by exporting your prototypes and experiencing them live on your device!

📊 Productivity
(59)
17
MIT App Inventor
MIT App Inventor
MIT App Inventor
by Massachusetts Institute of Technology
Free

An educational tool for learning computational thinking through building mobile apps. Design and code projects using a blocks-based programming language with over 60 components, including user interface elements, sensors, and multimedia features. Start creating and exploring computational actions today!

📚 Education
(834)
18
MockApp Wireframe UI Mockup
MockApp Wireframe UI Mockup
MockApp Wireframe UI Mockup
Figma prototype mock up tool
Free
🛠️ Developer Tools
(32)
19
Justinmind
Justinmind
Justinmind
Preview your prototypes
Free

This prototyping tool allows users to create fully functional, interactive prototypes with mobile gestures, transitions, and effects, and share them on the cloud or download for offline access. Design and test mobile app prototypes that behave like the real thing, and experience your work on your mobile phone or tablet device.

📊 Productivity
(15)
20
App Collector: Your Favorites
App Collector: Your Favorites
App Collector: Your Favorites
Save App Ideas & Design Inspo
Free
🌟 Lifestyle
(3)