What is the reason behind different touch target size recommendations between Android and iOS?

Touch target size on Android: 48dp
Touch target size on iOS: 44pt
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Why use borders around dropdowns in a mobile app?

I’m working on a mobile app with a GUI similar to the Gasbuddy mobile app.
The first screenshot is what Gasbuddy looks like now. The 2nd screenshot is the same thing but without the borders around the dropdowns.
I may be overthinking, but …
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Bottom sheet on top of popup on mobile

Is it problematic to open a bottom sheet on top of a popup on mobile?
Flow
User is shown a popup
User taps "Select option" dropdown-like input field
Bottom sheet with options are shown on top of popup
Please share any related r…
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converting a result listing into a mappable result listing on mobile

I currently have a web app that works quite well (if I may say so) on both mobile and desktop via the use of media-queries and by keeping things simple. The UI looks like this
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Wizard/Stepper in mobile app: navigation options in final review step of wizard

I have an 8-step wizard in my app and in the penultimate step, the user has to review all of the choices made in previous steps.
The user may only proceed to the final step of the wizard if the choices are confirmed. The final step is then…
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Wizard/Stepper in mobile app: "abort wizard" and "back button"

I have an 8-step wizard in my app and want the user to be able to abort the whole wizard.
My app has a title bar and usually, the top left icon is either a "burger icon" (opening the main drawer) or a "back arrow"
For m…
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Access one of the pages frim two diffrent paths in mobile app

We have a feature in our mobile application that can be accessed from the main menu of the application, is it possible to access this page in another place of the application? Whether a page can be accessed from two different paths is good…
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What is the best place to put the delete button?

Well, this maybe the simple question but it has given me a headache for days.
I’m making an app, from design, code, etc…. The app is a note app, user can select multiples of them, and then can archive or delete them, it will look like th…
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Tree List Filter for Mobile

Is there an equivalent of a tree list filter for iOS/Android?
Users need the ability to filter down a list. For example, they might filter across multiple options (countries, states, cities). They should be able across countries (across al…
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Surveys for mobile- from UX point of view is it better to implement questions on 1 scrollable landing page or 1 question-1 page flow?

Currently, I’m redesigning the survey and I’m looking for any use case/research in which flow increases completion rates. Does someone have any insights?