Proto.io
Proto.io is a web-based, no-code tool for creating interactive prototypes for iOS, Android, and web.
What Proto.io is
Proto.io is a web-based, no-code tool for creating interactive prototypes for iOS, Android, and web. It includes native iOS and Android apps, more than 250 UI components, and over 1,000 customizable web and mobile templates. Its asset library lists more than 6,000 icons, stock images, and sound effects. Prototypes can use over 80 events, over 40 actions, and 18 built-in screen transitions, including nested and multidirectional scrolling. Users can share links and snapshots or export to PDF, PNG, or HTML. The free plan allows one user, one active project, five screens, and 10 MB of storage, with no additional reviewers. It includes single-click sharing and exports, and a 15-day trial is listed. Paid plans include 256-bit SSL encryption.
Good
- No coding skills are required.
- Supports iOS, Android, and web prototypes.
- Includes over 1,000 customizable templates.
- Exports to HTML, PNG, and PDF.
- Supports user testing platforms.
Watch out
- Free plan allows five prototype screens.
- Free plan has 10 MB storage.
- Free plan has no additional reviewers.
- Freelancer costs $29 per month.
Who it suits
Proto.io suits individuals and teams building clickable prototypes for mobile apps and websites without coding. The free plan is limited to one user and one active project, while paid plans offer greater team capacity.
Verdict
Proto.io combines interactive prototyping, sharing, and exports in a web-based no-code tool. The free plan has tight project and reviewer limits; paid monthly plans begin at $29.
Plans and prices
From Proto.io's own pricing page, checked 21 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free plan | — | 1 user · 1 active project · 5 prototype screens · 10 MB storage · No additional reviewers |
| Freelancer | $29 a month | Annual billing shows $24 per month; 1 user, 5 active projects, unlimited reviewers · 1 user · 5 active projects · paid monthly |
| Startup | $49 a month | Annual billing shows $40 per month; 2 users, 10 active projects, unlimited reviewers · 2 users · 10 active projects · paid monthly |
| Agency | $99 a month | Annual billing shows $80 per month; 5 users, 15 active projects, unlimited reviewers · 5 users · 15 active projects · paid monthly |
| Corporate | $199 a month | Annual billing shows $160 per month; 10 users, 30 active projects, unlimited reviewers · 10 users · 30 active projects · paid monthly |
| Enterprise | — | Additional users · Unlimited projects · SSO · Enterprise-grade security · Tailored plan |
| Free Account | Free | Limited-feature plan available after the trial expires |
The facts
Each one read from Proto.io's own pages, with the date it was checked.
What it does
- Digital Assets
- The library includes more than 6,000 static and animated icons, stock images, and sound effects.checked 28 Sep 2026
- Interaction Options
- Proto.io offers over 80 events and over 40 actions, with nested and multidirectional scrolling.checked 28 Sep 2026
- Screen Transitions
- Users can connect screens with 18 built-in transitions.checked 28 Sep 2026
- Sharing And Export
- Users can share links, export to PDF, PNG, or HTML, and share snapshots at exact points in time.checked 28 Sep 2026
- SSL Encryption
- Paid plans include 256-bit SSL encryption, and Proto.io uses industry-standard SSL security.checked 28 Sep 2026
- Support Resources
- Resources include documentation, sample projects, video tutorials, guides, webinars, and case-by-case support.checked 28 Sep 2026
- Template Library
- Proto.io provides more than 1,000 customizable web and mobile templates.checked 28 Sep 2026
- UI Components
- The product includes more than 250 UI components that mimic native behavior.checked 28 Sep 2026
- User Testing
- Proto.io supports user testing with popular user testing platforms.checked 28 Sep 2026
- Web-Based No-Code
- Proto.io is web based and requires no coding skills.checked 28 Sep 2026
Money
- Free plan
- Yeschecked 21 Sep 2026
- Free Plan Exports
- The free plan supports HTML, PNG, and PDF export, plus design-tool import and branding.checked 28 Sep 2026
- Free Plan Limits
- The free plan includes 1 user, 1 active project, 5 prototype screens, and 10 MB storage.checked 28 Sep 2026
- Free Plan Sharing
- The free plan includes single-click sharing but no additional reviewers.checked 28 Sep 2026
- Free Trial
- The trial lasts 15 days and requires no credit card.checked 28 Sep 2026
The company
- Headquarters
- 44 Montgomery St. STE 300, San Francisco, CA 94104, United Stateschecked 28 Sep 2026
- Team Security
- Its granular security model supports working alone or in teams of any size.checked 28 Sep 2026
Where it runs
- Supported Platforms
- Proto.io supports iOS, Android, and web prototypes, with native iOS and Android apps.checked 28 Sep 2026
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