### Author:  [@ealalin13s68](https://community.thunkable.com/u/ealalin13s68)
#### Post date: [February 3, 2022, 5:28pm UTC](https://community.thunkable.com/t/using-responsive-web-app-to-take-app-previews-and-screenshots/1714113/1 "2022-02-03T17:28:05Z")
To prepare my IOS App Soumission , I need to compleet the section App Previews and Screenshots. 10 schreen shot on different Iphone tyoes and 3 App preview are required.
For this I have staart the Responsice Web app from the 3 point upper right on the screen I choise =\> More tools =\> Developper tools . I get the following screen
In this configuration I can set for exemple Iphone 6,7,8Plus -5.5" screen (1080 x 1920 px)
Then I want to copy this screen setting using the 3 littel buttons + \
### Author:  [@ealalin13s68](https://community.thunkable.com/u/ealalin13s68)
#### Post date: [February 4, 2022, 2:37pm UTC](https://community.thunkable.com/t/using-responsive-web-app-to-take-app-previews-and-screenshots/1714113/2 "2022-02-04T14:37:45Z")
I m still in the same situation ; I m not abble to provide enough screen shot to compleet my preparation for submission in Appel Store Connect .
Can some one help me ?
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### Author:  [@tatiang](https://community.thunkable.com/u/tatiang)
#### Post date: [February 4, 2022, 5:48pm UTC](https://community.thunkable.com/t/using-responsive-web-app-to-take-app-previews-and-screenshots/1714113/3 "2022-02-04T17:48:27Z")
I realize that taking screenshots from a web app is really useful but could you take the screenshots on a mobile device for now?
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### Author:  [@muneer](https://community.thunkable.com/u/muneer)
#### Post date: [February 4, 2022, 6:31pm UTC](https://community.thunkable.com/t/using-responsive-web-app-to-take-app-previews-and-screenshots/1714113/4 "2022-02-04T18:31:02Z")
Trying to change the size in the `Dev Tools` is not a good idea. Once you get the screenshot you want use any of the online converters to change the size.
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### Author:  [@ealalin13s68](https://community.thunkable.com/u/ealalin13s68)
#### Post date: [February 5, 2022, 8:16pm UTC](https://community.thunkable.com/t/using-responsive-web-app-to-take-app-previews-and-screenshots/1714113/5 "2022-02-05T20:16:15Z")
Tatiang indeed I have take 2 pictures , one from my IPH 10 and one from my Iphone 5c , i get then 2 pictures , not a second picture is accepted in the same category of Iphone , so I still need 8 pictures ( 8 different type of Iphone !!!) + 3 types of mp4 .
Muneer I have never use a online converter , but I will look on this area.
Thank you both for your support , I will keep you posted with the result
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### Author:  [@ealalin13s68](https://community.thunkable.com/u/ealalin13s68)
#### Post date: [February 7, 2022, 8:46am UTC](https://community.thunkable.com/t/using-responsive-web-app-to-take-app-previews-and-screenshots/1714113/6 "2022-02-07T08:46:02Z")
The solution with the online converter has perfectlly worked.
Hier is the result ( 1 of the 10 pictures) into the Appel preparation for submission
Thanks for the type , now I will search further for the 3 requested mp4 records because i receive as result : frame definition to high , I have try severall lower definition without success .
I will keep you posted at the same time any other type of infotmations are the welcome
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### Author:  [@system](https://community.thunkable.com/u/system)
#### Post date: [May 8, 2022, 8:46am UTC](https://community.thunkable.com/t/using-responsive-web-app-to-take-app-previews-and-screenshots/1714113/7 "2022-05-08T08:46:18Z")
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