Accelerate your digital product development
Build scalable mobile, web and AI apps with a top-tier engineering team at your side.
Accelerate your digital product development
Build scalable mobile, web and AI apps with a top-tier engineering team at your side.
Accelerate your digital product development
Build scalable mobile, web and AI apps with a top-tier engineering team at your side.
Book a free strategy call with our CEO
Book a free strategy call with our CEO
Book a free strategy call with our CEO
Our Senior AI & Research Team
Your trusted experts in applied AI and scalable systems



I’m Marcin
I’m Marcin
I’m Marcin
CEO & Lead Engineer
CEO & Lead Engineer
CEO & Lead Engineer



I’m Jakub
I’m Jakub
I’m Jakub
Senior AI Developer, PhD
Senior AI Developer, PhD
Senior AI Developer, PhD



I’m Michał
I’m Michał
I’m Michał
Senior Embedded Software Engineer
Senior Embedded Software Engineer
Senior Embedded Software Engineer



I’m Piotr
I’m Piotr
I’m Piotr
Senior Web Developer
Senior Web Developer
Senior Web Developer
End-to-End
Product Delivery
End-to-End Product Delivery
From concept to launch
and beyond


Product Strategy & Design
Product Strategy & Design
Product Strategy & Design
We shape your product vision and translate ideas into clear, testable concepts — through discovery workshops, user insights,
and rapid prototyping.
We shape your product vision and translate ideas into clear, testable concepts — through discovery workshops, user insights,
and rapid prototyping.
We shape your product vision and translate ideas into clear, testable concepts — through discovery workshops, user insights, and rapid prototyping.



Custom Software Development
Custom Software Development
Custom Software Development
From fast backends to refined interfaces
— we deliver web and mobile apps using proven technologies and scalable architecture.
From fast backends to refined interfaces — we deliver web and mobile apps using proven technologies and scalable architecture.
From fast backends to refined interfaces
— we deliver web and mobile apps using proven technologies and scalable architecture.


AI & Embedded Technology
AI & Embedded Technology
AI & Embedded Technology
We build AI-powered systems — from LLMs to vision — and deploy them on custom devices and embedded hardware for smooth
on-device performance.
We build AI-powered systems — from LLMs to vision — and deploy them on custom devices and embedded hardware for smooth
on-device performance.
We build AI-powered systems — from LLMs to vision — and deploy them on custom devices and embedded hardware for smooth on-device performance.


Cloud Architecture & DevOps
Cloud Architecture & DevOps
Cloud Architecture & DevOps
We build secure, scalable infrastructures — from AWS to on-prem — with automation,
CI/CD, and cloud-native tooling tailored
to your product’s growth.
We build secure, scalable infrastructures — from AWS to on-prem — with automation, CI/CD, and cloud-native tooling tailored to your product’s growth.
We build secure, scalable infrastructures — from AWS to on-prem — with automation, CI/CD, and cloud-native tooling tailored to your product’s growth.


QA & Ongoing Support
QA & Ongoing Support
QA & Ongoing Support
We ensure long-term stability through continuous testing, monitoring, and audits — keeping your product fast, secure,
and reliable at scale.
We ensure long-term stability through continuous testing, monitoring, and audits — keeping your product fast, secure,
and reliable at scale.
We ensure long-term stability through continuous testing, monitoring, and audits — keeping your product fast, secure, and reliable at scale.
Certified partners
A solution for managing and scaling in-app subscriptions, powering 50,000+ apps and generating over $8 billion in annual revenue.
A solution for managing and scaling in-app subscriptions, powering 50,000+ apps and generating over $8 billion in annual revenue.
A solution for managing and scaling in-app subscriptions, powering 50,000+ apps and generating over $8 billion in annual revenue.
“ As a technology partner, we help businesses maximize their subscription models. ”
“ As a technology partner, we help businesses maximize their subscription models. ”
“ As a technology partner, we help businesses maximize their subscription models. ”


Marcin, CEO



A solution for creating and optimizing in-app purchase screens, powering over 1 billion users and 700K monthly conversions.
A solution for creating and optimizing in-app purchase screens, powering over 1 billion users and 700K monthly conversions.
A solution for creating and optimizing in-app purchase screens, powering over 1 billion users and 700K monthly conversions.
Recent work

iOS & Android
System
Cross-platform
App
Educational tech.
Industry

iOS & Android
System
Cross-platform
App
Educational tech.
Industry


iOS & Android
System
Cross-platform
App
Educational tech.
Industry

iOS & Android
System
Cross-platform
App
Educational tech.
Industry

iOS & Android
System
100 000+
Downloads
1500+
5-star reviews

iOS & Android
System
100 000+
Downloads
1500+
5-star reviews


iOS & Android
System
100 000+
Downloads
1500+
5-star reviews

iOS & Android
System
100 000+
Downloads
1500+
5-star reviews
Why businesses choose us
Why businesses choose us
See 10 reasons why
See 10 reasons why
1
1
We form lasting partnerships
We form lasting partnerships





100k+ app downloads, 1500+ 5-star reviews
100k+ app downloads, 1500+ 5-star reviews
100k+ app downloads,
1500+ 5-star reviews
"I wanted to find the right person who I felt that I can really trust. And there was something about Marcin — he just seemed to have status to really know what he was talking about."
"I wanted to find the right person who I felt that I can really trust. And there was something about Marcin — he just seemed to have status to really know what he was talking about."
Tara Menzies
CEO, Christian Hypnobirthing & Daily Stillness
2
Proven track record
Over 100
positive reviews across:
4
A Friendly and Professional Team
At Inventively LLC, we believe that great projects start with great relationships. Our team is known for being approachable, professional, and easy to work with. We take a personal approach to every project, building trust and ensuring a smooth collaboration from start to finish.












6
Experience at Scale
"Marcin set up new processes that positioned our company for long-term success. His blend of technical, UX design and marketing skills makes him an invaluable partner.
We plan to hire more developers from Marcin's company to expand our engineering capability. Two developers from his team engaged in this project too and they were very professional and knowledgeable. We're excited to see what we can achieve together!"
Migrate Web App to Mobile with 225K Users
Consultant with Subscription Expertise Needed
5.0
/
5.0
8
Creative and Timely
"Absolutely loved working with Marcin. He delivered on time, figured out how to make my demands work. Was creative and timely. The app was prepared for iOS and Android and submitted to the app stores perfectly. Would highly recommend him and work with him again."
Eline Van Der Velden
Founder and CEO of Particle6
5.0
/
5.0
10
Trusted Partners & Advisors
"Throughout the project, Marcin provided invaluable advice and helped keep the project on course. His professionalism, discipline, and ability to command respect from everyone involved were instrumental in the success of the app's development.
I highly recommend Marcin for his expertise in UI/UX design and his exceptional project management skills. He is a true asset to any team and can effectively guide a project from concept to completion."
Naki Ufuk Soyturk
Founder of UltraV
5.0
/
5.0
3
Quality of work
"Absolutely loved working with Marcin. He delivered on time, figured out how to make my demands work. Was creative and timely. The app was prepared for iOS and Android and submitted to the app stores perfectly. Would highly recommend him and work with him again."
Ali Iberraken
CEO, Chapperone
5
We Help You Start Smart
"Valuable investment! We started with a paid discovery phase which reshaped our initial ideas, producing a project scope and estimates. Guidance on UX design, tech and business was very helpful."
Luka
Founder of Motokaii
5.0
/
5.0
7
Addressing real business needs
"Marcin brought clarity and speed to our project. He stayed focused on business outcomes, not just features or visuals. His input solved real problems and helped us work smarter and serve customers better. I highly recommend working with him!"
Marten
Client from Berlin
9
We take responsibility for the success of the project
We take responsibility for the success
of the project
"I can recommend Marcin's development firm. They are transparent about their processes, pricing, and progress, and they take responsibility for the success of the project. Very proactive and skilled in both technology and business. Our business has been growing so all the pieces on the digital side came together nicely."
Will
Client from Toronto
5.0
/
5.0






2
Proven track record
Over 100
positive reviews across:
3
Quality of work
"Absolutely loved working with Marcin. He delivered on time, figured out how to make my demands work. Was creative and timely. The app was prepared for iOS and Android and submitted to the app stores perfectly. Would highly recommend him and work with him again."
Ali Iberraken
CEO, Chapperone
4
A Friendly and Professional Team
At Inventively LLC, we believe that great projects start with great relationships. Our team is known for being approachable, professional, and easy to work with. We take a personal approach to every project, building trust and ensuring a smooth collaboration from start to finish.












5
We Help You Start Smart
"Valuable investment! We started with a paid discovery phase which reshaped our initial ideas, producing a project scope and estimates. Guidance on UX design, tech and business was very helpful."
Luka
Founder of Motokaii
5.0
/
5.0
6
Experience at Scale
"Marcin set up new processes that positioned our company for long-term success. His blend of technical, UX design and marketing skills makes him an invaluable partner.
We plan to hire more developers from Marcin's company to expand our engineering capability. Two developers from his team engaged in this project too and they were very professional and knowledgeable. We're excited to see what we can achieve together!"
Migrate Web App to Mobile with 225K Users
Consultant with Subscription Expertise Needed
5.0
/
5.0
7
Addressing real business needs
"Marcin brought clarity and speed to our project. He stayed focused on business outcomes, not just features or visuals. His input solved real problems and helped us work smarter and serve customers better. I highly recommend working with him!"
Marten
Client from Berlin
8
Creative and Timely
"Absolutely loved working with Marcin. He delivered on time, figured out how to make my demands work. Was creative and timely. The app was prepared for iOS and Android and submitted to the app stores perfectly. Would highly recommend him and work with him again."
Eline Van Der Velden
Founder and CEO of Particle6
5.0
/
5.0
9
We take responsibility for the project’s success.
"I can recommend Marcin's development firm. They are transparent about their processes, pricing, and progress, and they take responsibility for the success of the project. Very proactive and skilled in both technology and business. Our business has been growing so all the pieces on the digital side came together nicely."
Will
Client from Toronto
5.0
/
5.0
10
Trusted Partners & Advisors
"Throughout the project, Marcin provided invaluable advice and helped keep the project on course. His professionalism, discipline, and ability to command respect from everyone involved were instrumental in the success of the app's development.
I highly recommend Marcin for his expertise in UI/UX design and his exceptional project management skills. He is a true asset to any team and can effectively guide a project from concept to completion."
Naki Ufuk Soyturk
Founder of UltraV
5.0
/
5.0
Available for projects
Let’s build your product together
Book a free strategy call with our CEO

Available for projects
Let’s build your product together
Book a free strategy call with our CEO

Available for projects
Let’s build your product together
Book a free strategy call with our CEO

Available for projects
Let’s build your product together
Book a free strategy call with our CEO

Available for projects
Let’s build your product together
Book a free strategy call with our CEO
