Striving towards innovation and mastering new technologies, this is our first realization in the native iOS domain. Lots of evolutions and new features in the works. Check the app website: www.mystompz.com and videos on YouTube!
We manage your projects and design your software with skills and passion.

YOUR CUSTOM APP

CONSULTING SERVICES

Fixed price OR TIME BASED

Satisfaction guaranteed

about us.
We offer software and web development services, as well as project management and IT consulting in Estrie (Magog, Sherbrooke, Bromont etc.), and anywhere on Earth: wherever you are located, we will be your partner!
OS4 was founded in 2009. It is the Canadian sequel of its founder Renaud Duisit’s proven track record as a program/project manager, solution architect, application designer and developer.
We are a small team, yet we totalize over 30 years of experience in IT, consulting and development. Our small size allows for flexibility and quick response time, and it is enlarged by our reliable network so we can easily ramp up resources as projects require.
Desktop, web and mobile apps, from the simple needs to the most complex architectures.
We are based in the Sherbrooke/Magog, QC area and provide services worldwide.
Our focus.

Project Management
25+ years of successful experience in program and project management in multiple business domains: the professionalism that your projects deserve.

Understanding Your Objectives
We dive into what it is that you want to obtain. We work with you on the best approach and the steps that match your objectives, priorities and budget.

Application
Design
From Business objectives to the final product, including database, networking, mobile devices. We focus on building a flexible, sustainable solution.

Application
Development
Specialized on the PC Soft Windev/Webdev suite, your software is assured to run natively on Windows, MacOS + Android and iOS devices. Not to forget the web...
Give us a shout. You will discover an enriching experience!
Our Core team.

Renaud Duisit
Founder & CEO, Project Manager,
Solution Architect

Lancelot Duisit
Lead Developer, UI Designer,
UX Experience

... and the others
Building the best team based
on project needs

30+
Projects Completed

10+
Satisfied Clients

60+
Positive Feedbacks

1
Our First App on the AppStore
OS4 in detail
fast App Dev
Our use of the PC Soft Windev / Webdev platform allows for fast delivery of the application core.
We design and develop apps for Windows, Mac, web and mobile devices.
For regular, simple websites, we can implement WordPress sites for quick results.

Optimized for mobile
Cross-platform development with the Windev platform, combined with proper design, ensures that code can be “webinized” or ported to mobile devices to run natively. This lowers long term maintenance costs and enforces reliability.
Our iOS expertise can also contribute to your needs when applicable.

Lower your TCO
Total Cost of Ownership may be reduced via the use of built-in free components, such as the embedded database engine, compatible MS-Office elements etc. in addition to shared hosting options for web solutions.
Our DevOps approach means we always keep the end solution operability in mind during all phases of design and development.

Project Management
Specialized in PM consulting services, OS4 guarantees that your projects will get the professionalism you deserve – from business objectives to delivery to post-deployment support.

Testimonials.

Deployment ownership non-disclosure agreement vesting period crowdfunding success influencer partnership equity series A financing network effects user experience crowdsource. Burn rate stock bootstrapping direct mailing release client traction creative facebook monetization crowdfunding rockstar.

Melina Albrecht
Founder, TingTong
Why Select Us?

Growth
Success scrum project funding marketing seed money prototype innovator direct hackathon android angel investor.

Revisions
Technology founders churn rate niche market long tail release iteration burn rate backing. Churn rate accelerator.

Perfection
Deployment ownership non-disclosure agreement vesting period crowdfunding success influencer partnership.

Experience
Success scrum project funding marketing seed money prototype innovator direct hackathon android angel investor.

Deadline
Technology founders churn rate niche market long tail release iteration burn rate backing. Churn rate accelerator.

Company
Deployment ownership non-disclosure agreement vesting period crowdfunding success influencer partnership.
Start your journey with us now
News

Come back often to check our latest news
This is where we post updates on our activities.
And so we left Montreal for the countryside!
In July 2018 we made a decisive move: we think that quality of life is essential in order to be efficient at work, we chose to relocate to the beautiful Estrie area (Magog, Sherbrooke). This still allows to work on our clients’ projects, while removing city life stress for our team.
We all want peace of mind… at work!