Mark
Vassilevskiy
Product Designer, 7+ yrs crafting iOS & Android apps that delight users and hit KPIs.
Mark
Vassilevskiy
Product Designer, 7+ yrs crafting iOS & Android apps that delight users and hit KPIs.
Mark
Vassilevskiy
Product Designer, 7+ yrs crafting iOS & Android apps that delight users and hit KPIs.
25M+
monthly active users touched by my designs
5×
apps featured in Google Play’s “Editor’s Choice”
Design mentor
at ADPList & Dribbble
25M+
monthly active users touched by my designs
5×
apps featured in Google Play’s “Editor’s Choice”
Design mentor
at ADPList & Dribbble
My clients
(2018-25)
Case studies
Projects
I turn complex ideas into thumb‑stopping mobile experiences that feel effortless, delight users, and drive real business outcomes.
Case studies
Projects
I turn complex ideas into thumb‑stopping mobile experiences that feel effortless, delight users, and drive real business outcomes.
Case studies
Projects
I turn complex ideas into thumb‑stopping mobile experiences that feel effortless, delight users, and drive real business outcomes.
2023
UKeeper
FinTech
Health
SaaS
I turn complex ideas into thumb‑stopping mobile experiences that feel effortless.
2023
UKeeper
FinTech
Health
SaaS
I turn complex ideas into thumb‑stopping mobile experiences that feel effortless.
2023
UKeeper
FinTech
Health
SaaS
I turn complex ideas into thumb‑stopping mobile experiences that feel effortless.
2024
2024
2024
2025
2025
2025
See all 15 projects in detail on the dedicated case‑study page.
Latest reviews
1/3
“
Mark transformed our cluttered finance dashboard into a delightfully simple experience that even first‑time investors trust.
From the first user interview to the final motion spec, his card‑based IA pushed KYC completion to an all‑time high.
@SophiaMTan
Sophia Tan • VP Product at NovaBank
Latest reviews
1/3
“
Mark transformed our cluttered finance dashboard into a delightfully simple experience that even first‑time investors trust.
From the first user interview to the final motion spec, his card‑based IA pushed KYC completion to an all‑time high.
@SophiaMTan
Sophia Tan • VP Product at NovaBank
Latest reviews
1/3
“
Mark transformed our cluttered finance dashboard into a delightfully simple experience that even first‑time investors trust.
From the first user interview to the final motion spec, his card‑based IA pushed KYC completion to an all‑time high.
@SophiaMTan
Sophia Tan • VP Product at NovaBank
Pricing & Packages
* I move from brief to validated prototype in roughly 3–4 weeks
€ 1 200
UX Sprint Audit
Quick expert review of an existing mobile app
Heuristic audit (30+ annotated insights)
Recorded walkthrough (60 min)
Action‑prioritised roadmap
5 working days
€ 6000
MVP Design Package
3‑week engagement
€ 4 500 / month
Growth Partnership
3‑month minimum
Pricing & Packages
* I move from brief to validated prototype in roughly 3–4 weeks
€ 1200
5 working days
UX Sprint Audit
Quick expert review of an existing mobile app
Heuristic audit (30+ annotated insights)
Recorded walkthrough (60 min)
Action‑prioritised roadmap
€ 6000
3‑week engagement
MVP Design Package
€ 4500 / month
3‑month minimum
Growth Partnership
Pricing & Packages
* I move from brief to validated prototype in roughly 3–4 weeks
€ 1 200
UX Sprint Audit
Quick expert review of an existing mobile app
Heuristic audit (30+ annotated insights)
Recorded walkthrough (60 min)
Action‑prioritised roadmap
5 working days
€ 6000
MVP Design Package
3‑week engagement
€ 4 500 / month
Growth Partnership
3‑month minimum
Full Process
* The steps flex to fit your goals and timeline.
Transparent, data‑driven roadmap
Grounded in user insight, validated by live metrics, and built for long‑term scale.
01
Research
02
UX Strategy & Journey
03
Design System & Components
04
UX Details & Performance
05
Experiments & Monetisation
06
Release → Improve
Full Process
* The steps flex to fit your goals and timeline.
Transparent, data‑driven roadmap
01
Research
02
UX Strategy & Journey
03
Design System & Components
04
UX Details & Performance
05
Experiments & Monetisation
06
Release → Improve
Grounded in user insight, validated by live metrics, and built for long‑term scale.
Full Process
* The steps flex to fit your goals and timeline.
Transparent, data‑driven roadmap
01
Research
02
UX Strategy & Journey
03
Design System & Components
04
UX Details & Performance
05
Experiments & Monetisation
06
Release → Improve
Grounded in user insight, validated by live metrics, and built for long‑term scale.
Ready to launch an app people can’t quit?
End-to-end mobile design, validated by live metrics.
Or send your brief via email
mark@uxbydesign.com
Ready to launch an app people can’t quit?
End-to-end mobile design, validated by live metrics.
Or send your brief via email
mark@uxbydesign.com
Ready to launch an app people can’t quit?
End-to-end mobile design, validated by live metrics.
Or send your brief via email
mark@uxbydesign.com
Answers Hub
FAQ
What kinds of projects do you take on?
We specialize in end-to-end mobile app development — from idea validation and UI/UX design to development, deployment, and post-launch support.
Do you also code the apps you design?
Yes, absolutely. We handle both design and development in-house, ensuring seamless handoff and faster turnaround. Our team brings your app from concept to code.
What deliverables will I receive?
You’ll receive everything you need to launch and grow your app, including: A polished, fully functional mobile application (iOS and/or Android) UI/UX design files.
How do you price your work?
Our pricing is based on the scope and complexity of your project. We offer flexible models — from fixed packages for MVPs to custom quotes for larger builds.
What’s the typical timeline?
Most users can launch their mobile app site within a day. With ready-to-use sections and clean layouts, it’s just a matter of plugging in your content and hitting publish.
Answers Hub
FAQ
What kinds of projects do you take on?
We specialize in end-to-end mobile app development — from idea validation and UI/UX design to development, deployment, and post-launch support.
Do you also code the apps you design?
Yes, absolutely. We handle both design and development in-house, ensuring seamless handoff and faster turnaround. Our team brings your app from concept to code.
What deliverables will I receive?
You’ll receive everything you need to launch and grow your app, including: A polished, fully functional mobile application (iOS and/or Android) UI/UX design files.
How do you price your work?
Our pricing is based on the scope and complexity of your project. We offer flexible models — from fixed packages for MVPs to custom quotes for larger builds.
What’s the typical timeline?
Most users can launch their mobile app site within a day. With ready-to-use sections and clean layouts, it’s just a matter of plugging in your content and hitting publish.
Answers Hub
FAQ
What kinds of projects do you take on?
We specialize in end-to-end mobile app development — from idea validation and UI/UX design to development, deployment, and post-launch support.
Do you also code the apps you design?
Yes, absolutely. We handle both design and development in-house, ensuring seamless handoff and faster turnaround. Our team brings your app from concept to code.
What deliverables will I receive?
You’ll receive everything you need to launch and grow your app, including: A polished, fully functional mobile application (iOS and/or Android) UI/UX design files.
How do you price your work?
Our pricing is based on the scope and complexity of your project. We offer flexible models — from fixed packages for MVPs to custom quotes for larger builds.
What’s the typical timeline?
Most users can launch their mobile app site within a day. With ready-to-use sections and clean layouts, it’s just a matter of plugging in your content and hitting publish.
Socials
Stay in the loop
Book a 15-min call
Weekly posts
LinkedIn
Hot takes
X (Twitter)
UI shots
Dribbble
Deep dives
Medium
Framer
Free comps
5-min vids
YouTube