Apple is one of the leading mobile brands. Developing applications for Apple users (iOS, watchOS or tvOS) turns out to be a huge benefit for a development company.

iOS lifecycle has following components

iOS Application Design
iOS Application Development
iOS Application Testing
iOS Application Maintenance

iOs App Development Tips and Tricks:

1. Fit To Screen
There should be a minimum scroll, zooming-in and out involved in an application. A mobile screen should accommodate all the content to the available size as far as possible.
2. Typography
It involves font size, font style, font color and other details to be manipulated. Size of the font matters when it has to be readable by users. A dark color background can cope up with brighter shades of font and viceversa.
3. Use of Emulators For Testing
It's the developer's responsibility to decide operating versions to support.
Generally, emulators are available for testing the apps for all kinds of devices with different sizes. Developers make their product compatible with at least the most common sizes.
4. User Interaction In 3D Touch
3D Touch adds an additional dimension to touch-based interaction. On supported devices, people can access additional functionality by applying varying levels of pressure to the touchscreen. Apps can respond by displaying a menu, showing additional content, or playing an animation.
5. Error/Exception Handling Techniques
Exceptions are caused by programming faults and must be fixed or handled. Errors are expected to happen from time to time and should be dealt with.
They both can be reported to Raygun and Use NSError for Most Errors.
6. Create A Directory Structure
There are multiple experts working on a project sometimes. It is always a rule of thumb to create a hierarchy of project files which will show up different levels for file systems you are working with. Without intuitive project structure, your code can get messy and unorganized.

Managing iOS projects are not the tough tasks when followed the above guidelines.