# Proto.io

![](https://2135962229-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LwkvnWhBIGHXl8EUA4O%2F-Lx5dAHI4F789xgxZ9Od%2F-Lx5dklk93LDL3edaLR7%2Fprotoio.png?alt=media\&token=b35f6956-4933-4dfd-8f65-282833cf74c8)

### Step 1

Install Proto.io app (scan the appropriate QR code below); it allows you to preview your app prototype on your own mobile phone.

| Apple iOS                                                                                                                                                                                                                                                                        | Android phone                                                                                                                                                                                                                                                        |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| <p></p><p><img src="https://2135962229-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LwkvnWhBIGHXl8EUA4O%2F-Lx5eFRv6lbxLv7-dTEC%2F-Lx5fDQ6pDIeUDcgbvaq%2Fprotoio-apple.png?alt=media&#x26;token=3c6cbe9d-ef05-4f47-ab5b-b2c6367335ec" alt=""></p><p></p><p></p> | <p><img src="https://2135962229-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LwkvnWhBIGHXl8EUA4O%2F-Lx5eFRv6lbxLv7-dTEC%2F-Lx5f6YkJsDP8nuDOIN0%2Fprotoio-android.png?alt=media&#x26;token=47a719fc-036e-4453-b574-0e053716879a" alt=""></p><p></p> |

### Step 2

Sign up for a free account at <https://proto.io/> using any email address.