Benjamin Erxleben

Lead Product Designer

Gaming

Startup

B2C SaaS

The SUMO family — companion apps for game coaching

Gaming

Startup

B2C SaaS

The SUMO family — companion apps for game coaching

Gaming

Startup

B2C SaaS

The SUMO family —
companion apps for game coaching

My Role
My Role

Design Team Lead &
Senior Product Designer

Team Lead & Sr. Product Designer

About the Client

Dojo Madness is a gaming startup harnessing big data to build tools & services that help players to master their favorite games.

Timeframe
Timeframe

2+ years
2016 — 2018

2+ years • 2016 — 2018

My Role

Team Lead & Sr. Product Designer

About the Client

Cara Care develops a SaaS medical App to improve the quality of life for people with digestive issues like IBS, IBD and others.

Dojo Madness is a gaming startup harnessing big data to build tools & services that help players to master their favorite games.

Dojo Madness is a gaming startup harnessing big data to build tools & services that help players to master their favorite games.

Timeframe

2+ years • 2016 — 2018

Achievements

&

Summary

Applied Services, Deliverables & Impact

Achievements

&

Summary

Applied Services, Deliverables & Impact

Achievements

Achievements

Achievements

Achievements

Scaled and led a team of 5 senior designers & 1 freelancer across multiple product lines

Scaled and led a team of 5 senior designers & 1 freelancer across multiple product lines

Scaled and led a team of 5 senior designers & 1 freelancer across multiple product lines

Scaled and led a team of 5 senior designers & 1 freelancer across multiple product lines

End-to-end Product design for 3 products, balancing brand cohesion with game-specific user needs across mobile, web & desktop platforms

End-to-end product design for three coaching products across web, mobile & desktop platforms

End-to-end Product design for 3 products, balancing brand cohesion with game-specific user needs across mobile, web & desktop platforms

End-to-end Product design for 3 products, balancing brand cohesion with game-specific user needs across mobile, web & desktop platforms

Creation & maintenance of a design system improving visual consistency and streamlining development across all SUMO verticals

Creation & maintenance of a design system improving visual consistency and streamlining development across all SUMO verticals

Creation & maintenance of a design system improving visual consistency and streamlining development across all SUMO verticals

Creation & maintenance of a design system improving visual consistency and streamlining development across all SUMO verticals

Launched OVERSUMO from concept to monetization, growing it to 5M+ users

Launched OVERSUMO from concept to monetization, growing it to 5M+ users

Launched OVERSUMO from concept to monetization, growing it to 5M+ users

Launched OVERSUMO from concept to monetization, growing it to 5M+ users

Designed high-converting in-app upgrade flows and teaser surfaces, accelerating revenue growth and improving user adoption

Designed high-converting in-app upgrade flows and teaser surfaces, accelerating revenue growth and improving user adoption

Designed high-converting in-app upgrade flows and teaser surfaces, accelerating revenue growth and improving user adoption

Designed high-converting in-app upgrade flows and teaser surfaces, accelerating revenue growth and improving user adoption

Supported marketing, sales & content teams in print, merchandise, web & motion needs

Supported marketing, sales & content teams in print, merchandise, web & motion needs

Supported marketing, sales & content teams in print, merchandise, web & motion needs

Supported marketing, sales & content teams in print, merchandise, web & motion needs

Summary

Summary

Summary

Summary

13

13

13

M

M

M

Downloads

13

13

13

M

M

M

Downloads

4.5

4.5

4.5

avg. Store Rating

4.5

4.5

4.5

avg. Store Rating

5

5

5

digit

digit

digit

MRR

5

5

5

digit

digit

digit

DAU

SUMO became a family of mobile coaching apps helping players improve in competitive titles like LoL, Overwatch, and DOTA 2.

By adapting our core experience to multiple games with very different data landscapes, we built a flexible system that users trusted and returned to.

The monetization model, subscription-based and relatively new to this space at the time, was well received by our core audience and helped fund future product pivots.

SUMO became a family of mobile coaching apps helping players improve in competitive titles like LoL, Overwatch, and DOTA 2.

By adapting our core experience to multiple games with very different data landscapes, we built a flexible system that users trusted and returned to.

The monetization model, subscription-based and relatively new to this space at the time, was well received by our core audience and helped fund future product pivots.

SUMO became a family of mobile coaching apps helping players improve in competitive titles like LoL, Overwatch, and DOTA 2.

By adapting our core experience to multiple games with very different data landscapes, we built a flexible system that users trusted and returned to.

The monetization model, subscription-based and relatively new to this space at the time, was well received by our core audience and helped fund future product pivots.

SUMO became a family of mobile coaching apps helping players improve in competitive titles like LoL, Overwatch, and DOTA 2.

By adapting our core experience to multiple games with very different data landscapes, we built a flexible system that users trusted and returned to.

The monetization model, subscription-based and relatively new to this space at the time, was well received by our core audience and helped fund future product pivots.

Applied Services & Skills

IC & Team Lead

IC & Team Lead

Research, Concept & Ideation

Research, Concept & Ideation

Prototyping & Validation

Prototyping & Validation

Product Design

Product Design

Digital & Print Media Design

Digital & Print Media Design

Audit, Testing & QA

Audit, Testing & QA

Varying Constraints

&

Unified Experience

Designing consistent user value despite fragmented and inconsistent data sources

Varying Constraints

&

Unified Experience

Designing consistent user value despite fragmented and inconsistent data sources

Varying Constraints

&

Unified Experience

Designing consistent user value despite fragmented & inconsistent data sources

Varying Constraints

&

Unified Experience

Designing consistent user value despite fragmented and inconsistent data sources

Challenge: Different game developers, different data

Challenge: Different game developers, different data

Each game vertical posed its own data constraints: League of Legends offered a robust API, Overwatch required scraping Blizzard’s public player profiles and Dota 2 provided only limited stats. These differences made it hard to offer consistent, timely and granular insights across apps.

Each game vertical posed its own data constraints: League of Legends offered a robust API, Overwatch required scraping Blizzard’s public player profiles and Dota 2 provided only limited stats. These differences made it hard to offer consistent, timely and granular insights across apps.

Solution: Unified experience via flexible feature design framework

Solution: Unified experience via flexible feature design framework

To tackle this issue, we created a modular design system & feature architecture that allowed us to adapt each app’s depth and specificity while maintaining a coherent visual and functional experience. This let us scale the SUMO brand without sacrificing usability or trust.

To tackle this issue, we created a modular design system & feature architecture that allowed us to adapt each app’s depth and specificity while maintaining a coherent visual and functional experience. This let us scale the SUMO brand without sacrificing usability or trust.

Multiple Designers

&

Shared Foundation

Maintaining cohesion across product lines while moving fast with a growing team.

Multiple Designers

&

Shared Foundation

informed Decisions towards Product Market Fit

Multiple Designers

&

Shared Foundation

Maintaining cohesion across product lines while moving fast with a growing team.

Multiple Designers

&

Shared Foundation

Maintaining cohesion across product lines while moving fast with a growing team.

Challenge: Cross-team coordination at scale

Challenge: Cross-team coordination at scale

With several designers working on different verticals with varying complexity, maintaining a unified design language & code base was a constant balancing act. Each game required rapid iteration and app-specific tweaks, but still had to feel like “SUMO.”

With several designers working on different verticals with varying data & feature complexity, maintaining a unified design language & code base was a constant balancing act. Each game required rapid iteration and app-specific tweaks, but still had to feel like “SUMO.”

Solution: Shared design system & active collaboration culture

Solution: Shared design system & active collaboration culture

We invested in a central design system and held regular design reviews, cross-vertical sparring sessions and check-ins with dev leads. This helped us evolve shared patterns, find blind spots early, and accelerate implementation while keeping quality high.

We invested in a central design system and held regular design reviews, cross-vertical sparring sessions and check-ins with dev leads. This helped us evolve shared patterns, find blind spots early, and accelerate implementation while keeping quality high.

Limited Data

&

Coaching Expectations

Turning incomplete data into coaching users could trust and act on.

Limited Data

&

Coaching Expectations

Turning incomplete data into coaching users could trust and act on.

Limited Data

&

Coaching Expectations

Turning incomplete data into coaching users could trust and act on.

Limited Data

&

Coaching Expectations

Turning incomplete data into coaching users could trust and act on.

Challenge: Delivering insights from sparse or delayed data

Challenge: Delivering insights from sparse or delayed data

Due to the functionality on API-supported SUMO verticals, players expected real-time feedback and detailed coaching in each app. But in some cases we only had delayed or incomplete data to work with due to dependencies on external data sources. This mismatch threatened product experience, user trust and engagement.

Due to the functionality on API-supported SUMO verticals, players expected real-time feedback and detailed coaching in each app. But in some cases we only had delayed or incomplete data to work with due to dependencies on external data sources. This mismatch threatened product experience, user trust and engagement.

Solution: Creative coaching logic & progressive disclosure

Solution: Creative coaching logic & progressive disclosure

We combined player-specific stats with scraped community knowledge and aggregated performance patterns to offer actionable tips. By using progressive disclosure and contextual explanations, we kept users informed and engaged even when full data wasn’t available.

We combined player-specific stats with scraped community knowledge and aggregated performance patterns to offer actionable tips. By using progressive disclosure and contextual explanations, we kept users informed and engaged even when full data wasn’t available.

Product Value

&

Monetization Trust

Introducing a new business model without losing credibility or loyalty.

Product Value

&

Monetization Trust

From News-Feed to platform specific use-case split

Product Value

&

Monetization Trust

Introducing a new business model without losing credibility or loyalty.

Product Value

&

Monetization Trust

Introducing a new business model without losing credibility or loyalty.

Challenge: Subscription fatigue & external service dependency

Challenge: Subscription fatigue & external service dependency

Introducing a subscription-based model was uncommon at the time, especially in companion apps for gaming. On top of that, our core value depended on third-party data sources that occasionally failed or changed.

Introducing a subscription-based model was uncommon at the time, especially in game companion apps. On top of that, our core value depended on third-party data sources that occasionally failed or changed.

Solution: Transparent upsells & layered premium offering

Solution: Transparent upsells & layered premium offering

We designed upgrade flows that clearly communicated added value, using tiered features like ad removal, in-depth analytics, and custom coaching. When data outages occurred, we prioritized transparency and timely user communication to maintain trust.

We designed upgrade flows that clearly communicated added value, using tiered features like ad removal, in-depth analytics, and custom coaching. When data outages occurred, we prioritized transparency and timely communication of details & expected duration to maintain user trust.

Audience Access

&

Brand Trust

Building authentic engagement with a digitally native, high-expectation user base.

User Access

&

Brand Trust

Solving Problems through Multichannel Guidance

Audience Access

&

Brand Trust

Building engagement with a digitally native, high-expectation user base.

Audience Access

&

Brand Trust

Building authentic engagement with a digitally native, high-expectation user base.

Challenge: Young users, high standards, short attention spans

Challenge: Young users, high standards, short attention spans

The SUMO audience was tech-savvy and skeptical of traditional marketing. Reaching them for sufficient user growth required more than flashy visuals. We needed to speak their language, prove our value quickly and offer direct, two-way communication on their terms.

The complexity of the markets prescription / reimbursement system had to be tackled through a well structured and extensively guiding customer journey that enables multiple entry points (doctor referrals, self-managed, etc.) and confidently guides the user with supportively chunked steps, reminders & info material.

Solution: Community-first marketing & trust-driven surfaces

Solution: Community-first marketing & trust-driven surfaces

As part of the marketing efforts, we launched a dedicated product landing page, including a short explanation video and targeted influencer placements to introduce OVERSUMO in a tone and style that resonated with the gaming community.

To foster user trust and get a channel for direct, unfiltered user feedback, we created a dedicated subreddit for announcements, feedback and support — enabling async, transparent communication through upvoting and community replies.

Together, these efforts turned marketing into an extension of the product experience and gave users a sense of ownership in the app’s evolution.

The complexity of the markets prescription / reimbursement system had to be tackled through a well structured and extensively guiding customer journey that enables multiple entry points (doctor referrals, self-managed, etc.) and confidently guides the user with supportively chunked steps, reminders & info material.

Summary

&

Reflection

Distilling the essence of Digital Product Design

Summary

&

Reflection

Distilling the essence of Digital Product Design

Summary

&

Reflection

Distilling the essence of Digital Product Design

Summary

&

Reflection

Distilling the essence of Digital Product Design

Outcome

Outcome

SUMO grew into a widely recognized family of coaching apps that empowered competitive gamers to understand and improve their performance through data-driven insights.

Across LOLSUMO, OVERSUMO, and DOTASUMO, we reached over 13 million downloads, maintained an average store rating of 4.5 stars, and achieved a five-digit monthly recurring revenue.

The successful monetization of SUMO products laid the foundation for the company’s shift toward a broader platform strategy thinking well beyond the original apps.

SUMO grew into a widely recognized family of coaching apps that empowered competitive gamers to understand and improve their performance through data-driven insights.

Across LOLSUMO, OVERSUMO, and DOTASUMO, we reached over 13 million downloads, maintained an average store rating of 4.5 stars, and achieved a five-digit monthly recurring revenue.

The successful monetization of SUMO products laid the foundation for the company’s shift toward a broader platform strategy thinking well beyond the original apps.

13

13

13

M

M

M

Downloads

5

5

5

digit

digit

digit

Revenue/month (MRR)

5

5

5

digit

digit

digit

MRR

4.5

4.5

4.5

avg. Store Rating

Reflection

Reflection

Leading AND actively participating in design across the SUMO family taught me to balance consistency with flexibility, craft with systems, and team support with product focus.

Particularly my two-sided mentoring approach on equal footing allowed me to significantly improve my coaching style and grow together as a team.

I also saw firsthand how the lack of direct control over data sources can drasticly challenge UX, but also open the door to creative, out of the box solutions.

Leading AND actively participating in design across the SUMO family taught me to balance consistency with flexibility, craft with systems, and team support with product focus.

Particularly my two-sided mentoring approach on equal footing allowed me to significantly improve my coaching style and grow together as a team.

I also saw firsthand how the lack of direct control over data sources can drasticly challenge UX, but also open the door to creative, out of the box solutions.

Client & Peer Reviews

Praises, kind words & honest opinions

Client & Peer Reviews

Praises, kind words & honest opinions

Client & Peer Reviews

Praises, kind words & honest opinions

Pawel Lewinski

Tech Lead

Pawel Lewinski

Tech Lead

Beni was one of those rare designers who really understood how to work with tech.

He had a strong product mindset, always thinking a few steps ahead and making sure design decisions made sense for both users and implementation.

Working with him was smooth — he was well-organized, open to feedback, and focused on finding solutions rather than getting stuck on problems. Plus, he brought a really positive and supportive energy to the team, which made a big difference in day-to-day collaboration.

Pawel Lewinski

Tech Lead

Pawel Lewinski

Tech Lead

Beni was one of those rare designers who really understood how to work with tech.

He had a strong product mindset, always thinking a few steps ahead and making sure design decisions made sense for both users and implementation.

Working with him was smooth — he was well-organized, open to feedback, and focused on finding solutions rather than getting stuck on problems. Plus, he brought a really positive and supportive energy to the team, which made a big difference in day-to-day collaboration.

Pawel Lewinski

Tech Lead

Pawel Lewinski

Tech Lead

Beni was one of those rare designers who really understood how to work with tech.

He had a strong product mindset, always thinking a few steps ahead and making sure design decisions made sense for both users and implementation.

Working with him was smooth — he was well-organized, open to feedback, and focused on finding solutions rather than getting stuck on problems. Plus, he brought a really positive and supportive energy to the team, which made a big difference in day-to-day collaboration.

Pawel Lewinski

Tech Lead

Pawel Lewinski

Tech Lead

Beni was one of those rare designers who really understood how to work with tech.

He had a strong product mindset, always thinking a few steps ahead and making sure design decisions made sense for both users and implementation.

Working with him was smooth — he was well-organized, open to feedback, and focused on finding solutions rather than getting stuck on problems. Plus, he brought a really positive and supportive energy to the team, which made a big difference in day-to-day collaboration.

Want to talk?

Want to talk?

Want to talk?

No matter if you want to talk about your current / future product, problems to solve or just want to discuss design philosophy

Just book a quick 15 minute call and I will curiously unpack your story to see where our potential overlap might take us.

No matter if you want to talk about your current / future product, problems to solve or just want to discuss design philosophy

Just book a quick 15 minute call and I will curiously unpack your story to see where our potential overlap might take us.

No matter if you want to talk about your current / future product, problems to solve or just want to discuss design philosophy

Just book a quick 15 minute call and I will curiously unpack your story to see where our potential overlap might take us.

Book a Call

Book a Call

Contact Options

Contact Options

© 2025 Benjamin Erxleben

All rights reserved

© 2025 Benjamin Erxleben

All rights reserved