# Preview App

Now you must be wondering how will you preview your changes? You MUST download the Twinr Preview app and test your App in realtime!

### Android & iOS Preview

* For Android : <https://play.google.com/store/apps/details?id=com.twinr.builder.previewer>

<div align="left"><figure><img src="https://3731994945-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MlBy5z08zL1UoCwNqmg%2Fuploads%2FxluklH02sP4m4Ls8Fael%2Fandroid_preview_app_qr.png?alt=media&#x26;token=be575d4a-8764-4831-8b48-0036a9352aa9" alt="" width="188"><figcaption></figcaption></figure></div>

* For iOS : <https://apps.apple.com/ca/app/twinr/id6446420501>

<div align="left"><figure><img src="https://3731994945-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MlBy5z08zL1UoCwNqmg%2Fuploads%2FRdr4xsTaroQ44DkJCEpa%2FiOS_preview_app_qr.png?alt=media&#x26;token=34f4cccc-63c4-4156-b7b9-fe142b9e3468" alt="" width="188"><figcaption></figcaption></figure></div>

* Once you install the Twinr Previewer App, you can login with the same credentials that you have used for [Twinr portal.](https://builder.twinr.dev/)&#x20;
* Select the application you want to preview.

<mark style="color:red;">**NOTE**</mark>**: Everytime you do any change, you should click "SAVE AS DRAFT" and then "Refresh" the preview using refresh button provided in the preview app.**

<figure><img src="https://3731994945-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MlBy5z08zL1UoCwNqmg%2Fuploads%2Ff2DWALkZZDGkcy5Bj1H5%2FIMG_0599.PNG?alt=media&#x26;token=5733f984-cf1c-4ca7-be76-a0e2e2e59a46" alt="" width="188"><figcaption></figcaption></figure>

**The floating button in the Twinr app is only to let you refresh or go back in the preview.&#x20;**<mark style="color:red;">**This button won't be there in the actual app.**</mark>

<figure><img src="https://3731994945-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MlBy5z08zL1UoCwNqmg%2Fuploads%2FLdUDmitxu16cEIkD9Dr4%2FIMG_0597.PNG?alt=media&#x26;token=1864ed48-23b8-474c-acd0-3515a92f76db" alt="" width="188"><figcaption></figcaption></figure>