Overview
$25 - $49/hr
10 - 49
2012
We help companies and individuals who seek mobile development achieve great business results and get wizardly-polished apps. We deliver great results for our clients because our team is formed of passionate developers and skilled managers and we know that in the modern world quality and innovation are the things that really matter. 

We help companies and individuals who seek mobile development achieve great business results and get wizardly-polished apps. We deliver great results for our clients because our team is formed of passionate developers and skilled managers and we know that in the modern world quality and innovation are the things that really matter. 

Key Clients

Successful individual entrepreneurs and stratups, small and midsize companies

ua
Ukraine
Factorial Complexity
Kharkiv, Ukraine , Kharkiv, Kharkiv 61002
+1-424-777-2021
Focus Area
Service Focus
  • Mobile App Development
  • App Designing (UI/UX)
  • Web Designing (UI/UX)
60%
20%
20%
Client Focus
  • Small Business(< $10M)
100%
Industries Focus
  • Information Technology
100%
Customer Reviews
5.0 (6 Reviews)

Met all our expectations related to the projects.

Raj Bhandari
posted on 28/9/16

The client is a game development company based in the US focusing primarily on puzzle and war games. The client approached Factorial Complexity to help in designing and developing multiple gaming applications for Android and iOS platforms. Factorial Complexity has been working with the client since 2012 and has developed some eight projects for them.



The client is very satisfied with Factorial Complexity since they delivered everything as per client’s expectations and within the promised timeline and budget. They often recommend them to their colleagues and friends.


Project Details
Multiple iOS & Android Game Development
Mobile App Development
$10001 to $50000
In progress

The client is a game development company based in the US focusing primarily on puzzle and war games. The client approached Factorial Complexity to help in designing and developing multiple gaming applications for Android and iOS platforms. Factorial Complexity has been working with the client since 2012 and has developed some eight projects for them.



The client is very satisfied with Factorial Complexity since they delivered everything as per client’s expectations and within the promised timeline and budget. They often recommend them to their colleagues and friends.


posted on 28/9/16
  • Quality of deliverable
  • Value for money
  • Customer support
  • Overall ratings

Clearly understood the scope and delivered as per requirements.

A
posted on 29/9/16

The client is an app design & development firm that majorly does projects for cultural institutions. The client takes care of the designing part of the applications and allocates the technical work to Factorial Complexity which is their development partner.



The client has been working with Factorial Complexity for quite some time now and has developed and designed multiple projects together. The client is highly satisfied with the services of Factorial Complexity and praises their technical skills. They are highly recommended by the client to work with.


Project Details
Multiple App Development Projects For A Designing Firm
Mobile App Development
$50001 to $200000
In progress

The client is an app design & development firm that majorly does projects for cultural institutions. The client takes care of the designing part of the applications and allocates the technical work to Factorial Complexity which is their development partner.



The client has been working with Factorial Complexity for quite some time now and has developed and designed multiple projects together. The client is highly satisfied with the services of Factorial Complexity and praises their technical skills. They are highly recommended by the client to work with.


posted on 29/9/16
  • Quality of deliverable
  • Value for money
  • Customer support
  • Overall ratings

Have strong technical capabilities.

A
posted on 3/10/16

The client is a mobile app development company based in the US developing all types of applications from simple to complex. The client wanted a development partner to expand their business and thus partnered with Factorial Complexity which helped the client in developing multiple iOS apps over the years.



According to the client, Factorial Complexity has successfully delivered the projects on time and as per their expectations. The client highly recommends them to their colleagues as they have been a good fit for all of the client’s development requirements since years. 


Project Details
Multiple iOS App Development Projects
Mobile App Development
$200000+
In progress

The client is a mobile app development company based in the US developing all types of applications from simple to complex. The client wanted a development partner to expand their business and thus partnered with Factorial Complexity which helped the client in developing multiple iOS apps over the years.



According to the client, Factorial Complexity has successfully delivered the projects on time and as per their expectations. The client highly recommends them to their colleagues as they have been a good fit for all of the client’s development requirements since years. 


posted on 3/10/16
  • Quality of deliverable
  • Value for money
  • Customer support
  • Overall ratings

Kept us updated with the latest developments.

Michael Lapico
posted on 4/10/16

The client is a mobile and web app development firm based in the US. Factorial Complexity has been working with the client since a long time and has done multiple projects for them. Lastly, they developed and designed an iOS application for the client which was a visual kitchen timer to manage multiple cooking times.



The client is highly satisfied with Factorial Complexity since their deliverables are of high quality and they always deliver projects on time. The client highly recommends them to their colleagues.


Project Details
iOS App Development For A Visual Kitchen Timer
Mobile App Development
$0 to $10000
Completed

The client is a mobile and web app development firm based in the US. Factorial Complexity has been working with the client since a long time and has done multiple projects for them. Lastly, they developed and designed an iOS application for the client which was a visual kitchen timer to manage multiple cooking times.



The client is highly satisfied with Factorial Complexity since their deliverables are of high quality and they always deliver projects on time. The client highly recommends them to their colleagues.


posted on 4/10/16
  • Quality of deliverable
  • Value for money
  • Customer support
  • Overall ratings

Partners - not just coders

Ward Parsons
posted on 29/8/19
What I liked most about Factorial Complexity is their focus on solving business problems. They were so much more than mere coders, providing development hours. They always had a bigger picture in mind and used their immense mobile experience to help us get want our business really needed. They understood my needs and helped steer us to a great solution.

The time estimates, provided by a team, were quite accurate and reasonable. I was able to track spendings and manage the project budget easily. When I had a new feature request - their estimates continued to be spot on and reasonable.

The workflow was fully transparent. I was given access to the team's communication channel, time and issue tracking tools. Likewise, I was receiving automatic weekly reports, and they were always there to update me on the project status and answer all my questions.

I've had a great expereince working iwth Vitaly and team - and will do so in the future.

What is it about the company that you appreciate the most?

Transparency, communication, skill and quality

Project Details
Mobile App Development
$10001 to $50000
posted on 29/8/19
  • Quality of deliverable
  • Value for money
  • Customer support
  • Overall ratings

Great team

Antony Burrows
posted on 20/9/19
I have worked with Factorial Complexity for many years on several projects. They are a very talented and honest team. They not only are upfront and set expectations, but they also are great at suggesting ideas and improvements to make your project better. I recommend them whole heartedly.

What is it about the company that you appreciate the most?

Tech knowledge, UI/UX, honesty, Proactive suggestions, cost

Project Details
App Designing (UI/UX)
$10001 to $50000
posted on 20/9/19
  • Quality of deliverable
  • Value for money
  • Customer support
  • Overall ratings
Executive Interview
Tatiana Danshyna
Tatiana Danshyna
CEO/Director, Factorial Complexity
Please introduce your company and give a brief about your role within the company?
Our company is called Factorial Complexity. We provide superior services in mobile app development, UI/UX design, application testing and a bit of web development. Thus, our team can help all the way to create an application from concept and design development to the product itself.
As a CEO I do my best to make our company recognized and, at the same time, to embody projects that matter not only for customers but also for team members to allow them to work on something meaningful.
What was the idea behind starting this organization?
The idea was of making great products for our clients using contemporary technologies and absolutely transparent workflow.
What are your company’s business model–in house team or third party vendors/ outsourcing?
In-house team including designers, project managers, and quality engineers.
How is your business model beneficial from a value addition perspective to the clients compared to other companies' models?
We are flexible, agile-oriented and work closely with project owners because that is the most efficient way to deliver the value-adding results to our clients.
What industries do you generally cater to? Are your customers repetitive? If yes, what ratio of clients has been repetitive to you?
We work with start-ups mostly, and our clients are from different spheres (education, transportation, finance). Some of our clients work with us for more than 4 years in a row. All together we help startups/technological business to build their products, and we help different businesses to develop stand out mobile applications in their business areas.
Mention the objectives or the parameters critical in determining the time frame of developing a mobile app.
A time frame for the development of an application is defined individually for every project. First, we discuss the timeframes with a customer before the start, then approve them and only after this, we launch the project.
How much effort in terms of time goes into developing the front end and back end of a mobile app?
It depends on the application specifics. The project can be for one week if it’s only an interface for one platform or for half of a year if it’s a complex cross-platform solution with back-end and interface development.
What are the key parameters to be considered before selecting the right platform for a mobile application?
There many of them! It depends on a business model and an auditory the application is targeted for, their revenue, location and so on. One of the main parameters is, of course, budget.
Which platform do you suggest your clients to begin with when they approach you with an idea (Android or iOS) and why?
It’s always up to a customer. As far as once again, it depends on many factors. To start with, we suggest deciding whether they are going with a native or a cross-platform solution. Then, they need to make a decision taking into consideration their budget, target audience, business model, app purpose and so on.
Android or iOS, Native or Hybrid — which platform is best to use to build your app? What are your recommendations?
We build native (iOS, Android) and cross-platform applications using React Native, because we are sure that these solutions are the best in terms of money, effort and quality. We strongly suggest our clients to choose between these two options to ensure the best user-experience and quality.
What are the key factors that you consider before deciding the cost of a mobile application?
The cost of a mobile application is referred to as the amount of work needed to bring the app to life. There is also a way of constant improvement of the application in the form of application support, update or add additional functionality.
Do you take in projects which meet your basic budget requirement? If yes, what is the minimum requirement? If no, on what minimum budget you have worked for?
We don’t set a minimum budget for new projects. The budget of the simplest application is about $7,000-$10,000. It is so called MVP - minimum viable product. Isolated tasks also can be performed, and their cost could be less.
What is the price range (min and max) of the projects that you catered to in 2018?
It has a fairly wide range from $700 to tens of thousands of dollars. So, we are ready to help everyone who needs a mobile app.
Which business model do you suggest to your clients enabling them to generate revenue from mobile applications? Why?
We are a team of true developers. So, on this particular milestone of our life, we do not consult our clients on the marketing success of the applications or advertisement promotion.
Kindly share your feedback on how GoodFirms has been doing so far in increasing your visibility among potential clients.
We enjoy being a part of such a big IT community. It’s good to know that we have space to work, gain experience, share success and meet new clients. Thank you, GoodFirms.
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