What is the usual rate for iOS developers?
The cost of mobile app development projects varies greatly depending on the complexity of your app, the project duration, and the level of expertise you need. However, there are guides on cost estimates readily available on the internet which you can use for reference.
Below is a quick table comparing the annual salaries and hourly rates of iOS developers from the UK, the US, Canada and Australia. All figures are from PayScale.
| |
Average iOS Developer Annual Salary |
Average iOS Developer Hourly Rate |
| United Kingdom |
GBP 36,435 |
GBP 30 |
| United States |
USD 98,847 |
USD 57.60 |
| Canada |
CAD 64,473 |
CAD 25.50 |
| Australia |
AUD 74,284 |
AUD 40.50 |
While hiring locally is the common way to go, there are companies from startups to large tech firms which are looking for more cost-efficient and quick alternatives to find the tech talent they need. This is where IT outsourcing providers enter the picture.
As your IT outsourcing partner, we address startups and small and medium-sized enterprises’ needs to be able to find alternatives to hiring iOS developers that is vital in expanding and growing the business. We offer competitive industry rates that allow companies to find the best iOS app developers while saving on overhead costs. Know more about offshore developer rates in this blog.
What interview techniques should you use to hire the best iOS developer?
Q: What are solid principles?
A: S.O.L.I.D. stands for:
- S — Single responsibility principle (A class should only have one job)
- O — Open closed principle (Objects or entities such as classes, modules, functions, etc., should be open for extension but closed for modification)
- L — Liskov substitution principle (Derived classes must be substitutable for their base classes)
- I — Interface segregation principle (Make simple abstractions based on the clients’ needs)
- D — Dependency Inversion principle (Entities must depend on abstractions, not on specific classes/structures or concretions)
Q: What is a managed object context?
A: A managed object context is an instance of NSManagedObjectContext and it represents a single object space or scratch pad. It mainly manages a collection of managed objects and keeps note of all changes to the object layer.
Q: What is the difference between viewDidLoad and viewDidAppear?
A: viewDidLoad is called when the view is loaded from a Xib file or a storyboard, or when it is programmatically created in loadView. On the other hand, viewDidAppear is called every time the view is presented on the device.
For data that is fairly statics and is not likely to change, it can be loaded in viewDidLoad and cached. For data that changes regularly, it will be better to load it using viewDidAppear. However, in both situations, the data should be loaded asynchronously on a background thread so it doesn’t block the UI.
Q: What are the different application states in iOS?
- Not Running. As its name suggests, the app is not running. Either it has not been launched, or it has been terminated
- Inactive. In this state, the app is running in the foreground but is not receiving events. An iOS app can be placed into an inactive state if the user has locked the device with the app active, or when a call or SMS message is received.
- Active. When the app is “in use”. The app is running in the foreground and is receiving events.
- Background. The app is running in the background. It is no longer on-screen but still executing code.
- Suspended. The app is in the background and is still resident in memory, but no code is executed.
Q: What is the difference between retain and assign?
A: Both retain and assign creates a reference from one object to another, the difference lies in the retain count. Retain increases the retain count of the source object, while assign does not.
Here is an example of retain:
if (_variable != object)
{
[_variable release];
_variable = nil;
_variable = [object retain];
}
Here is an example of assign:
if (_variable != object)
{
[_variable release];
_variable = nil;
_variable = object;
}
This question is taken from Codementor.
Q: Spot the bug in the following code and suggest how to fix it:
@interface MyCustomController : UIViewController
@property (strong, nonatomic) UILabel *alert;
@end
@implementation MyCustomController
- (void)viewDidLoad {
CGRect frame = CGRectMake(100, 100, 100, 50);
self.alert = [[UILabel alloc] initWithFrame:frame];
self.alert.text = @"Please wait...";
[self.view addSubview:self.alert];
dispatch_async(
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),
^{
sleep(10);
self.alert.text = @"Waiting over";
}
);
}
@end
A: The code should be modified so that all UI updates must be done on the main thread.
dispatch_async(
dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0),
^{
sleep(10);
dispatch_async(dispatch_get_main_queue(), ^{
self.alert.text = @"Waiting over";
});
});
How can Cloud Employee help you?
As a UK-managed IT outsourcing firm, Cloud Employee provides global businesses access to the best tech talent and iOS developers in the Philippines. We help you find and hire offshore iOS developers who work full-time for your company without the risks and hassle.
With our simple business process, you can hire offshore iOS developers in just weeks. Simply let us know your job requirements, skill sets needed, and other relevant information. Our recruitment team scouts for available skilled iOS developers at no recruitment fees. We then provide you with a shortlist of pre-screened CVs from which you select candidates for interviews and technical testing. We ensure that no commitment will be made until you are fully satisfied with your offshore iOS developer.
Once hired, your offshore iOS developers work 100% exclusively with you at your preferred time-zone. They report directly to you and use your preferred tools and standards, making them an effective member of your in-house team.
Meanwhile, Cloud Employee provides your offshore iOS developer with a great office environment and full IT support. In addition, we take care of all administrative functions such as taxes, payroll, license, HR, and other back-office tasks allowing you to focus on your business.
An offshore iOS developer can help you with a range of services for developing iOS applications. With Cloud Employee, you can hire offshore iOS developers with a broad range of skill sets including Objective-C, Swift, Cocoa Touch, Xcode, APNs integration, and other related technologies.
What is the dedicated developer model?
The Dedicated Hiring Model is a hiring model we employ here at Cloud Employee to help you avoid the risks and extra costs of traditional outsourcing. Through this model, the dedicated offshore iOS development team you hire with us is seamlessly added to your in-house team, using only your processes, tools, and standards.
This model is considered the best engagement model, thanks to the flexibility it offers. Scaling your team according to your business requirements whenever you need it is made possible—and more efficient.
Moreover, you only pay a single sum of money that already covers the offshore team member’s monthly salary and the outsourcing provider’s fee.
Pros
- Ideal for long-term projects, especially those with a constantly changing scope and undefined specifications
- Works fine with a predictable budget even with an indefinite project scope
- As the client, you have full control from recruitment and interviews to the management of your outsourced iOS development team
- You monitor and assess the product quality directly
- The dedicated iOS developers you hire work exclusively for you, so they understand your objectives, goals, standards, and expectations clearly
Moreover, the dedicated hiring model suits these businesses the most:
- Those which prefer to work with a dedicated iOS team for their project
- Those which are looking to reduce their hiring and recruitment expenses
- Those that want flexibility and scalability especially during the development
More than a hundred startups and SMEs from all over the world are trusting Cloud Employee for their iOS development needs because of its convenient and client-oriented model. Our developers follow our clients’ time zones, allowing them to work together at the same time and to reduce the risks of miscommunication and other inconveniences. The outsourced team becomes an efficient extension of the in-house team.
All of these services are offered at competitive industry rates, which makes us and our business model the top choice for many startups and firms.
