For your app to be successful, it must be accessible. The term "accessibility" focuses on your users' vision, auditory, motor and learning/cognitive experience. Individuals who may have disabilities or impairments benefit greatly from accessible design, which centres around removing barriers and ensuring everyone can enjoy the benefits of technology.
Without good, sound, accessible design principles, you are essentially excluding a percentage of your audience by making your app difficult to use. Proactive design principles will optimize the user experience of everyone who uses your application, and the following tips and tricks will help in this regard:
Have a high colour contrast ratio
Your users should not have difficulty using your app, so you should use a minimum colour contrast ratio of 4.5:1 for standard text and 3:1 for large text. For example, a significant percentage of the population may have visual impairments such as colour blindness. Even bright sunlight can make it hard to see everything on the screen, so you need to test this aspect to ensure users are not struggling when viewing your app.
Use large font sizes between 14px and 18px. Apple also provides an accessibility inspector tool in their Developer membership subscription. Keeping dark text on a light background (or the opposite, light text on a white background) are good places to start with colour contrast.
Focus on the dynamic type and auto-layout
The dynamic type will allow your users to size up or down their preferred font size, and your app will be able to adjust accordingly. When this aspect is combined with auto-layout rules, your app will look exactly as you expect it to look, and users will be able to select any font size they feel comfortable with visually.
Adjust the size of your tap targets
We've all tapped the wrong button while visiting certain apps, and this can be both awkward and frustrating, so you should not put your users in this position. To prevent this from happening, make sure they don't have to tap tiny buttons and adjust the size of your tap targets. Target size is essential for users with motor impairments and low vision, so keep this in mind.
Use multiple modes to communicate important information
When you limit modes of communication, you cannot cater to all of your users, and many of them will have difficulty using your app. When designing your screen, you need to consider each user: consider changing colours, adding messages, and using VoiceOver support to communicate valuable information. You can never be certain about how your users prefer communication, so different modes would allow every user to enjoy your app.
Keep the user interface simple
A confusing UI will turn users away because most people prefer simplicity over clutter, leading to confusion. Your colour scheme should be simple so that it does not overwhelm users. Simplicity is important because it's suitable for every type of user, regardless of their abilities or age. The last thing you want for your app is for users to become frustrated and stop using it, so prioritize simplicity at all times.
Remember to incorporate basic UI principles, including clarity, flexibility, user control and familiarity and allow users to reverse their actions easily. It’s also important to note that you can partner with a company for this task because it’s common for the design and coding of apps to be done by different firms. This would allow you to get the best of both worlds, and you would have peace of mind knowing every aspect of your app is created perfectly.
Communicate with your users
Talk to them about their experience and how they interact with their phones so that you can use this information to improve your app and make it more accessible. Make it clear that they can contact you if they encounter accessibility issues and provide ways for them to connect with you. The good news is that you don't have to do all the heavy lifting on your own. There are accessibility options built into OSs themselves, so users can access these options if the application requirements are followed.
In today's world, it's becoming more and more important to develop a mobile app to be part of the information economy. But starting development - especially if you don't have a software business can be tough.
Here at Konverge, we want to be your development partner, no matter if you need a simple app to guide users to your store, or want them to be able to complete purchases on their mobile devices, we've got you covered. Contact us today for a free consultation.