iOS is a mobile phone and tablet operating system built by Apple, Inc. It is a light weight touch screen OS based on the Mac OS UNIX called Darwin.

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106
votes
19answers
9k views

How could one prevent drunk users from using a mobile application?

Consider a mobile application which for some reason needs to prevent drunk users from using it (e.g. to avoid dreaded "drunk dials" or "drunk texts"). How could "sober authentication" be executed from ...
26
votes
5answers
2k views

Should Android and iPhone UI be different?

I'm not completely new to developing apps, but I'm at a point where I'm trying to develop something and deploy it on several mobile platforms. To only concentrate on two major ones, suppose I'm ...
24
votes
3answers
8k views

Is Apple's or Google's meaning of the three-horizontal-bar icon more popular?

Apple and Google are going head-to-head to define meaning of the three-horizontal-bars icon: In iOS this icon means "drag me to rearrange items in a list" while Google Chrome's version means "click ...
24
votes
2answers
939 views

Should I follow the Android guideline or keep my app's own style when porting it from iOS?

My new project is to port an iOS app to Android platform. Before get started, I'm quite confused on whether I should follow google's guideline since some big titles on Android platform still keep the ...
19
votes
6answers
752 views

Custom rating slider

I have made a custom interface object to handle user rating in a take-away app I am currently building. But I am not sure if it's intuitive enough in its form. Q : Would you understand an object ...
18
votes
2answers
8k views

Do spinner-based date pickers on iOS & Android detract from the user's experience?

Generally speaking, the rule of thumb on mobile devices is to follow the platform conventions, and that native controls are almost always better than custom UIs. However, I'm at a loss as to whether ...
16
votes
3answers
2k views

Asking feedback/rating for a mobile app?

p;                                  ...
15
votes
7answers
2k views

Designing for the iPad

I'd like to make my site accessible to people that have the iPad or other iOS devices. What considerations do I need to take into account when designing a user interface that is compatible with the ...
13
votes
6answers
350 views

What is it about our mental models that app-centric seems more intuitive than content-centric?

I always thought that content-centric was the easiest for people to deal with, i.e. "I want to change this document", and not "Let's run this app so I can then change that document". It seems that ...
12
votes
6answers
2k views

Is it appropriate to use Metro style design for a cross-platform mobile app

I'm finding it really difficult to design UI's for android and ios after falling in love with the windows metro design. I wondered if providing a metro style app across all platforms would be such a ...
12
votes
2answers
850 views

Why do the iPhone and iPad keyboards use different shades of gray for the keys and background?

I noticed when working with iPhone and iPad keyboards that they are quite a significantly different colour: Is there any particular reason for this?
12
votes
2answers
235 views

What are the functional advantages of disabling user access to the filesystem on the iPad?

It is not possible for users to access the filesystem on the iPad since this access is not permitted on devices running iOS. How is the function of the iPad improved by preventing users from ...
11
votes
13answers
3k views

Custom UI vs Default UI [closed]

This question is mainly for iOS/Android developers, but anybody can answer. Do you prefer using the default UI provided by the OS or do you prefer using custom UI. I've heard many developers argue ...
10
votes
7answers
818 views

How should I indicate an added row of buttons above the iPad's keyboard is scrollable?

In my iOS app, I have an extra toolbar that appears above the keyboard, using the same style of buttons as the keyboard. This toolbar is horizontally scrollable. Currently, in all devices and ...
10
votes
6answers
952 views

What are some tools to monitor user interaction in mobile apps? [closed]

What tools and services are available for monitoring user interaction in a running mobile (iOS) app? Is there a way to monitor users taps, time spent in between taps etc?
9
votes
5answers
671 views

Should I lock to portrait my iOS app?

I'm developing a "reading" app for iOS. I'm wondering if it's useful to have the app running both on portrait and landscape mode. As a reader I usually keep books (or my kindle, or my iPhone browser, ...
9
votes
6answers
677 views

Do iOS application icons need to be updated for iOS 7?

as a graphic designer, would an application icon need to be updated to match the simplicity and flat UI of iOS 7? Do you think this would contribute to the UX overall?
9
votes
3answers
125 views

Can we assume users know the devices they're working on?

I'm developing an iPhone app that uses pretty standard UI, follows Apple's human-interface guidelines, and in some cases imitates behavior as seen in stock iPhone apps. For example, a table view from ...
9
votes
6answers
4k views

best image to indicate swipe left right

What is the most appropriate image to indicate to users to swipe left or right? i am using http://cubiq.org/swipeview but i feel like it needs a swipe indicator in the background somewhere. Edit: for ...
9
votes
3answers
2k views

Are “submit” buttons important for forms on iPhone and Android apps?

When inputting text on the last text field in a form on an iPhone and Android app, the enter key can be highlighted or (on iOS anyway) renamed "done", so that tapping it will submit the form. ...
8
votes
4answers
860 views

How to hint that there's more beyond what you see in a scroll view?

I'm developing an (iOS) app that mainly consists of a UIScrollView. The view is paged and the scroll bar turned off, so currently there is nothing to indicate to the user that they can scroll down and ...
8
votes
6answers
1k views

How to properly indicate that a chat message is sent-received-seen? The WhatsApp way?

We are building a cross platform mobile application and I am kind of responsible for iOS part. I'm the first one to begin to work on the instant messaging feature, so my decisions will affect my ...
8
votes
5answers
398 views

Should I display timezone if the user is not in the same location as the event?

In a number of the apps I design, the relative time from now is the preferred time reference. E.g. 'last updated 10 mins ago'. When it comes to events or broadcast from a location this becomes less ...
8
votes
2answers
200 views

How do people react to voice commands in AI?

I'm looking for documentation on how people react to talking to an artificial intelligence system like, say, Siri (especially now that iOS6 has dictation). How 'comfortable' is it to use voice ...
7
votes
5answers
1k views

Why are icons on mobile phone menu screens square or rectangular but not circular?

If you take a look at the app page of any mobile OS, for example iOS, Android, Ubuntu, Win8, BADA, etc., they all have square icons, either with rounded corner or sharp corners (shown in the first ...
7
votes
3answers
835 views

Do I need to design four different apps for Android, iOS, smartphones, or have one common design?

I have to start designing for an app which will be used by Android & IOS users both on Smartphones and Tablets. Do I need to design four different apps or have one common design and then ...
7
votes
4answers
609 views

How many elements are too many for one screen of a mobile (iOS/Android) application?

Without scrolling, what would be the maximum amount of centered buttons I could arrange on a vertical axis before it became too cluttered? Interface Builder gives suggested distances between ...
7
votes
2answers
2k views

What is the reason behind the upper-case-lower-case behaviour of the Apple iOS keyboard?

On Windows and Android phones/tablets the case of the keypad letters alters when pressing SHIFT: But Apple seems to ignore this presumably useful feature. Does Apple really know it's better NOT to ...
7
votes
4answers
2k views

How to show the mandatory fields on an iOS device?

I have to show more than 11 fields within the screen. 4 fields are mandatory. How should I indicate the mandatory fields? Is there any standard or any ideas?
7
votes
2answers
4k views

How to handle “Facebook style” slide in / fly in / side navigation menu in iOS7?

With the recent announcement of iOS 7 a new system wide slide from left edge to right gesture to go back has been introduced. This appears to affect applications that use navigation controllers. When ...
7
votes
2answers
426 views

What is the rationale behind not providing Dashboard/Home screen landscape mode?

I'm an adept Android user, but know my way around iOS as well. Something both platforms has in common is the stubborn conviction of not introducing the landscape mode for their Dashboard/Home screen ...
6
votes
4answers
1k views

What do you call non-retina displays?

With the introduction of high density pixel displays (Retina being the brand name Apple uses) what do we now call non-retina (low pixel density) displays? Legacy Displays Low Pixel Density Displays ...
6
votes
4answers
405 views

Should apps' design evolve according to the OS version?

In iOS 7, Apple revamped the whole OS's look and feel. Removing a lot of gloss and 3D stylistic elements. Does this mean that the apps built for iOS 7 must change as well to match this new style? ...
6
votes
4answers
837 views

Suggestions for a touch UI used to book seats on a bus

I am trying to design the layout for a Bus Ticket Booking App. User is allowed to choose the seats he wishes to book. Below is the layout provided to us. I am looking for some inspiration and ...
6
votes
4answers
366 views

Social network login or not?

I am developing a niche social networking iPhone app of my own. I was wondering if it would be best to allow the user to connect to social networks such as Facebook and Twitter to login to my app ...
6
votes
7answers
282 views

How much choice should I give users?

I am considering adding an update to my iPhone app that allows the user to choose many new features such as the background image, where certain buttons are located, button colors, button design, ...
6
votes
3answers
407 views

Tabbar inside Modal View - iPhone

Is it ok to have TabBar in Modal view in iOS UI (iPhone)? I have a "Select Contact" view in my app and I plan to make it as modal view. But "Select Contact" is a set of views: "Favourites", ...
6
votes
2answers
291 views

Is it necessary to use titles on the navigation bar of an iOS app, or could I get away with displaying the logo all the time?

Within my app there are several views accessible from a side navigation pull-out panel. Is it necessary to put the title in the navigation bar all the time?
6
votes
1answer
2k views

When to use Pull Down to Refresh and when to use a Refresh Button?

I'm building an iPhone app but I'm torn which type of refresh UI to use. I understand that pull down to refresh makes sense when you have things being added to the top of a list like twitter feeds. A ...
6
votes
1answer
586 views

Porting iOS to Android

I'm not really a designer/UX expert, however I have been developing on Android for some time now and I always try to stick to the look and feel of the standard (ICS) look and feel (with some degree of ...
6
votes
3answers
198 views

Need help Displaying an Elimination Chart on a small display (iPhone/Android/etc..)

I'm building an Application for mobile device that needs to display an Elimination Bracket for a tournament (16, 8, 4, 2, 1) I haven't seen any application doing something similar and I'm "jammed" ...
6
votes
5answers
3k views

Modal views vs popovers in iPad

I'm transitioning from an iPhone app to iPad, in the iPhone version I have a view hierarchy similar to this: That is, an UITableView, while tapping on a cell the app navigates to another view with ...
6
votes
3answers
90 views

Preparing Positioning Specs for iOS Developers

After designing your pixel-perfect application in Photoshop, naming and exporting everything correctly - what is the best method / tools that we can use to explain to developers where we specifically ...
5
votes
4answers
5k views

Comparison between Android and IOS apps UI one-to-one

I am currently doing some research trying to describe differences between IOS and Android UI in detail. I know, there are a few questions before and some stuff on Google (I'm already going through ...
5
votes
3answers
701 views

Why is the new Twitter menu bar on the bottom on iPhone?

Twitter recently released a complete redesign for all major platforms, in part the redesign has been made to unify the experience across platforms. But, because of this goal I couldn't help noticing ...
5
votes
3answers
2k views

Why do some custom iOS apps use the native nav bar?

I'm talking about Instagram or Foursquare, they are custom designed but still are using default themed menu bar for navigation. Is there some dirty secret behind it?
5
votes
2answers
1k views

Is spacing between touch targets an unnecessary recommendation by Microsoft?

A recent Microsoft IE10 blogpost gave general guidelines for building touch friendly sites suggesting two rules for touch targets: Target size Margin between targets Apple's iOS guidance only ...
5
votes
4answers
173 views

What are alternatives to the verb “follow”?

I'm designing a mobile app that has an independent activity feed. One option on items in the feed is to "follow" individual stories/threads. What verbiage can I use to convey the idea of "following" a ...
5
votes
3answers
1k views

Implementing UI Design of iOS to Android App, Good Idea?

I found a similar question here but I want to hear the answer to my questions. Our team has launched an iOS version of our app, let's call it X App. We have sold this to 3 clients and they like it. ...
5
votes
2answers
445 views

Spinner is to Android, as “____” is to iOS?

In Android, to make a selection from a list of predefined options, we'd use the Spinner element seen below. What is the best approach to replicating this on iOS? The iOS SDK offers pickers, segmented ...