Free Forever Team Chat

Simplified User Acquisition, Driving 50% higher Month 1 Activation than benchmark competitors.

Pumble

Active users in 90 days

10,000

Driven by optimized onboarding that resulted in 20% faster Time-to-First-Action (TTFA) than competitors.

User Satisfaction

95%

(18K+) Ratings across App Store, Play Store and Windows Store. Ranging 46 industries and 1,200 companies

Free Forever Team Chat

Simplified User Acquisition, Driving 50% higher Month 1 Activation than benchmark competitors.

Active users in 90 days

10,000

Driven by optimized onboarding that resulted in 20% faster Time-to-First-Action (TTFA) than competitors.

User Satisfaction

(18K+) Ratings across App Store, Play Store and Windows Store. Ranging 46 industries and 1,200 companies

95%

Research Insights


120 interviews · 500+ surveys · 3- benchmarked competitor analysis later...



120 interviews · 500+ surveys · 3- benchmarked competitor analysis later...



120 interviews · 500+ surveys · 3- benchmarked competitor analysis later...


Goals & Strategy (KPIs)

The core mandate for the Pumble redesign was to eliminate competitors' friction points and strategically align the product's value proposition with the broader Cake.com freemium ecosystem for growth and monetization.

Conversion Goal (Monetization): Drive 25 % free-to-paid conversion to Cake.com's bundle package (Clockify, Pumble, Plaky) by optimizing the user journey toward team-level value.

UX Goal (Efficiency): Reduce the time users spend searching for key information by 40%, directly addressing the competitor's "knowledge loss" problem and increasing user satisfaction.​


Activation Goal (Friction): Accelerate the time-to-value by driving Faster Onboarding (TTFA), ensuring teams experience Pumble's core functionality quickly and effortlessly, 60-second onboarding from sign-up to first message.



42% of SMBs cite “too complicated” as #1 reason for abandoning chat tools. 28% of interviewed users cited onboarding complexity, and drop-offs occurred at a 35%  rate during setup.

The Activation Wall

Slack’s 10k message cap forces 38% of teams to upgrade too early (Frustrating Paywall).

In our product, users were aware of the bundle but failed to understand the integrated value of Pumble, Clockify, and Plaky, viewing them as separate apps.

The Monetization Blocker

85% of users say “search is the feature I use most.” BUT 40% of users are frustrated by history loss after 90 days. The primary search tool prioritized channels over direct content, causing 46% of users to abandon a search after 3 attempts.

The Search & Value Trap

"I have to download all our files every 90 days. It makes the system feel temporary, and I just stop using it for important conversations."  
-User Quote



Our conclusion



Make knowledge findable in under 3 seconds — for free

Design Strategy

Our initial mandate involved a full visual overhaul to distinguish Pumble in the market. However, quantitative analysis and usability testing revealed that radical change was an activation blocker. The data pointed toward a more strategic, friction-reducing approach.

Strategic Pivot: The design team formally shifted focus from a visual redesign to a functional simplification. The goal was to leverage existing muscle memory from established competitors while removing their core pain points.

Strategic Mandate & Execution
Preserve Muscle Memory
Retained familiar core UI elements and navigation patterns from established competitors.
TTFA (Faster Onboarding): Reduced cognitive load to accelerate time-to-value.
Remove What They Hate
Aggressively stripped away confusing, complex, and low-usage features (no feature parity goal).
Activation Wall: Addressing the 42% citing "too complicated."
Focus on Core Value
Reallocated visual overhaul budget entirely to performance optimization and feature simplification.
North Star: "Make knowledge findable in under 3 seconds — for free."

Designing for Ubiquity: Cross-Platform Consistency

Designing for Ubiquity: Cross-Platform Consistency

The strategic requirement to compete globally meant designing for full cross-platform parity from day one, ensuring a seamless experience for all users, regardless of their operating system.

Targeted Platforms: iOS, Android, Web, macOS, Windows, and Linux.

Design Constraint: Maintain 100%  functional consistency while optimizing the UI/UX for each unique screen size and input method

Key Solutions

Executing the Strategy

1.Content-First Search:
Introduced a dedicated, persistent "Search all messages" Call-to-Action (CTA) in the primary search bar, explicitly advertising the unlimited history value proposition.

1.Content-First Search:
Introduced a dedicated, persistent "Search all messages" Call-to-Action (CTA) in the primary search bar, explicitly advertising the unlimited history value proposition.

2. Simplified & Responsive UI:
Reduced feature clutter by 30%  (fewer sidebar items), creating a cleaner, goal-focused interface that minimizes cognitive load.

3. Integrated Value & Monetization Bridge:
Embedded reliable video calls/meeting links and core integrations (e.g., Google Calendar) that function robustly without overwhelming the simplified UI.

The seamless integration provides primary value to upsell the full Cake.com productivity suite

The seamless integration provides primary value to upsell the full Cake.com productivity suite

Design Trade-off: Familiarity vs Differentiation

Initial Complex Flow
Complex Setup Wizard
Advanced Filter Sidebar
Multi-Tab Analytics View
Hidden Nested Menus
"High cognitive load for non-tech users"
"Increased drop-off in testing"
Streamlined Final Flow
Main Workspace
# general
# marketing
Simplified, direct access UI

Early in the project, there was strong pressure to match Slack’s feature density and create a more visually differentiated interface. However, after user testing with non-technical SMB teams, I made the deliberate choice to prioritize familiarity and simplicity over feature parity and visual novelty. I pushed back on heavy animations, complex workflows, and major UI departures — arguing that our core advantage wasn’t looking different, but removing the pain of lost message history while staying instantly understandable. This meant saying no to several visually impressive concepts. The restraint paid off: we achieved faster onboarding, higher adoption among the target audience, and stronger retention by respecting how users actually work.

Designing For Ubiquity

The most common failure point for enterprise tools is inconsistency between mobile and desktop operating systems. To ensure true ecosystem fidelity, we implemented a single, unified design language across the web, desktop, and mobile platforms. This approach ensured that high-value features, such as integrated video calls and calendar scheduling, functioned identically and seamlessly whether a user was at their desk or on the go.
We were especially able to identify a market gap for Linux operating system as communication tools available were often glitching.

Designing For Ubiquity

The most common failure point for enterprise tools is inconsistency between mobile and desktop operating systems. To ensure true ecosystem fidelity, we implemented a single, unified design language across the web, desktop, and mobile platforms. This approach ensured that high-value features, such as integrated video calls and calendar scheduling, functioned identically and seamlessly whether a user was at their desk or on the go.
We were especially able to identify a market gap for Linux operating system as communication tools available were often glitching.

The core challenge was to integrate high-value, complex features—such as native voice/video calling, screen sharing, and integrated scheduling—without compromising our Aggressive Simplification mandate. By seamlessly consolidating these functionalities directly into the chat composer and unified call screen, we drastically lowered the cognitive load and improved the Time-to-First-Action (TTFA) for critical enterprise workflows.

The core challenge was to integrate high-value, complex features—such as native voice/video calling, screen sharing, and integrated scheduling—without compromising our Aggressive Simplification mandate. By seamlessly consolidating these functionalities directly into the chat composer and unified call screen, we drastically lowered the cognitive load and improved the Time-to-First-Action (TTFA) for critical enterprise workflows.

The Integrated Pumble System

The Integrated Pumble System

Results

User Satisfaction

95 % User Satisfaction

Based on 18k ratings across 6 platforms (App store, Playstore, Windows, MacOs and Linux

Market Adoption

317,828 Teams

Currently use Pumble across 46 industries and 1,200 companies

User Retention

35 % Retention at Month 3
at M3 vs 20% benchmark, 10,000 active users and 20% faster onboarding

Monetization

25 % Bundle Conversion

First-Month Retention (M1) of 28% which improved to36% by the third month (M3)

User Satisfaction

95 % User Satisfaction

Based on 18k ratings across 6 platforms (App store, Playstore, Windows, MacOs and Linux

Market Adoption

317,828 Teams

Currently use Pumble across 46 industries and 1,200 companies

User Retention

35 % Retention at Month 3
at M3 vs 20% benchmark, 10,000 active users and 20% faster onboarding

Monetization

25 % Bundle Conversion

10 % above the15 % industry average for suite bundles

Monetization

35 % Retention at Month 3
at M3 vs 20% benchmark, 10,000 active users and 20% faster onboarding

Market Adoption

317,828 Teams
Currently use Pumble across 46 industries and 1,200 companies

User Satisfaction

95 % User Satisfaction

Based on 18k ratings across 6 platforms (App store, Playstore, Windows, MacOs and Linux

User Retention

25 % Bundle Conversion

First-Month Retention (M1) of 28% which improved to36% by the third month (M3)

Lessons Learned

Lessons Learned

Van Sarna

System v2.6 // 2026

Remote across EMEA

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