If you are hiring the best iPhone app developers, then the following are qualities you need to look at. 

Creativity: Creativity plays a crucial role whenever it comes to iPhone development. The developer should think out of the box. He/she should be capable enough of making unique yet enthralling applications. 

Analytical skills: Alongside creativity, an app developer needs to be a problem solver. The logical yet innovative developer is an ideally suitable option for app development. Always ensure to hire an experienced developer who identifies and tackles the needs of clients effectively and efficiently. 

High completion rate: Always look for developers who work day and night to complete the application tasks within a given timeframe. The app developer should be enthusiastic and capable of project completion. A goal-accomplishing developer always succeeds in captivating the attention of users. 

Cross-platform development: A good developer should be efficient in every operating system. They must be capable enough for creating the application, no matter what device or features are required. If a developer can create applications that function on more than one platform, then he/she is a commendable choice for the employer.