# Proto.io

> Mobile app for previewing and interacting with Proto.io prototypes using touch gestures. (iPhone/iPad app by Proto.io.)

- Source: https://appshunter.io/ios/app/protoio/id854504039 (this page in markdown: same URL + `.md`)
- Developer: [Proto.io](https://appshunter.io/developer/854504042)
- Category: Productivity, Utilities
- Price: Free
- Rating: 3.70/5 from 6 App Store ratings · 55 written reviews indexed
- Age rating: 4+
- Requires: iOS 10.0 · 34 MB
- Languages: American English, Danish, Dutch, French (France), German (Germany), Greek, Hebrew, Italian, Japanese, Korean and 8 more
- Released: 2014-04-23
- Data updated: 2026-06-09
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/protoio/id854504039/reviews.md

## What is Proto.io?

Proto.io App brings your Proto.io projects to life! It allows you to use all the native gestures to interact with elements and makes full use of your screen estate. 

**Key features include:**
- Preview projects shared with you
- Login and access all your projects in your Proto.io account.
- Preview your projects in full screen without any obstructions.
- Ability to interact with your projects using all supported touch gestures: Pinch, swipe, tap, tap & hold and more.
- Preview any prototype on any device/screen size regardless of the device /screen size it was designed for.
- When previewing a project it is saved in your device cache so that you can view it again without an internet connection
- Record and share your interactions with a prototype

## Key features

- Preview shared Proto.io projects
- Access all projects from your account
- Full-screen prototype viewing
- Interact with native touch gestures
- Preview on any device/screen size
- Offline viewing of cached projects
- Record and share prototype interactions

## Recent user reviews (10 of 55)

All indexed reviews: https://appshunter.io/ios/app/protoio/id854504039/reviews.md

### 1/5 — 13 pro max doesn’t work

*2024-11-02, version 2.43*

Can’t login.

### 1/5 — Didn’t let my close my account

*2023-04-04, version 2.40*

Took me a long time to delete my account as every time I pressed delete it would direct me back to the same page. Still not sure if I have deleted it now as after I have ‘deleted’ my account it left me on a blank page so I could not double check if I have deleted it or not as I do not want to pay the subscription fee.

### 5/5 — Awesome Product

*2021-06-23, version 2.37*

This service made prototyping so simple.I am not a graphic designer and I’ve never made a prototype before, however, this software made it possible with relative ease. It has powerful features and functions that make prototyping easy, simple, and quick. I’m very happy I found this service.

### 5/5 — Really good

*2020-09-28, version 2.35*

The prototype is responsive and easy to use and it has live updates from your computer to your phone. Really love it, it’s helped me build my prototype.

### 5/5 — Amazing

*2020-06-12, version 2.34*

Have been using this service for quite a few months now and it’s an incredible way to flesh out an idea. Little bumps and glitches along the way are fixed when you ask the online support who are really helpful. Cool service

### 5/5 — Great

*2020-04-28, version 2.34*

Wonderful job

### 5/5 — Exceptional

*2020-03-23, version 2.34*

This is really remarkable software. Almost no learning curve, and outstanding functionality. Stoked!

### 5/5 — Excellent iPhone and iPad app

*2020-03-08, version 2.34*

Surprised many of the other reviews here are experiencing bugs, I’ve been using the app every day for 2 week with no issues. I originally was using Figma’s Smart Animate feature but performance was unreliable and it lacked a timeline so I switched over to Proto.io.

### 5/5 — By far the best

*2020-02-09, version 2.34*

This is by far the best prototyping platform available. The extend to which you can control details about animations and user interactions completely surpasses that of Adobe XD. 

I would like to see update UI elements for iOS 13 but other than that it's brilliant.

### 1/5 — Share link, Login issues

*2019-08-15, version 2.32*

Can’t view shared links or log in with credentials, currently support is slow to respond

## Frequently asked questions about Proto.io

### What does the Proto.io App do?

The Proto.io App allows you to bring your Proto.io projects to life on your mobile device. You can preview prototypes shared with you or access all your projects from your Proto.io account. It enables interaction with elements using native touch gestures and offers full-screen viewing.

### What are the key features of the Proto.io App?

Key features include previewing shared projects, accessing all your Proto.io account projects, full-screen viewing without obstructions, and interacting with prototypes using touch gestures like pinch, swipe, and tap. It also allows previewing on any device size and offline viewing of cached projects.

### Is the Proto.io App free to use?

Based on the provided information, the Proto.io App is free to use. There are no mentions of in-app purchases or advertisements, suggesting a free monetization model for this specific application.

### Can I use my Proto.io projects on any device with this app?

Yes, the app allows you to preview any prototype on any device or screen size, regardless of the size it was originally designed for. This ensures a consistent viewing experience across different platforms.

### Can I view my prototypes offline?

Yes, when you preview a project, it is saved in your device's cache. This means you can view it again later without needing an internet connection, making it convenient for testing on the go.

## Version history (last 5 releases)

### 2.43 — 2023-06-21

Fixed a rare crash issue that occurred during loading a project for preview.

### 2.42 — 2023-05-02

Better memory management when reloading projects containing videos

### 2.41 — 2023-04-26

Better memory management when playing videos

### 2.40 — 2022-08-10

Minor bug fixes

### 2.38 — 2022-03-25

Minor fix for iPads

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-09.*