Scaling Engagement Through Strategic Interaction Design

Text or Unmatch

Role

Product Designer

Time

2 weeks

Company

Mello App

Team

Sole Contributer

As part of a two-week collaboration with Mello, a parenting social network, I was tasked with increasing user engagement through a newly introduced swiping feature. While Mello’s mission was to help parents “find their village,” data revealed a significant drop-off post-match, limiting the platform’s ability to foster meaningful connections. Many users would enter the app but not engage with each other, creating a barrier to long-term retention. My approach prioritized a growth-focused product strategy, leveraging behavioral psychology, data-informed iteration, and interaction design to drive sustainable engagement.

Growth Challenge: Activating Users Beyond the First Interaction

The swiping feature was introduced to create lightweight interactions, but it quickly became evident that low-effort matching did not translate into high-value engagement. Research on dating and professional networking apps indicates that while swiping mechanics are intuitive, they often encourage passive usage rather than action-oriented engagement.

For Mello, the key questions were:

  • How do we transform passive users into active community participants?

  • What behavioral triggers can drive conversation rates post-match?

  • How can UX design optimize the user journey to improve retention and engagement?

Growth Challenge: Activating Users Beyond the First Interaction

The swiping feature was introduced to create lightweight interactions, but it quickly became evident that low-effort matching did not translate into high-value engagement. Research on dating and professional networking apps indicates that while swiping mechanics are intuitive, they often encourage passive usage rather than action-oriented engagement.

For Mello, the key questions were:

  • How do we transform passive users into active community participants?

  • What behavioral triggers can drive conversation rates post-match?

  • How can UX design optimize the user journey to improve retention and engagement?

Hypothesis & Strategic Approach

Hypothesis: Introducing a friction point that incentivizes conversation before allowing additional swiping would increase meaningful interactions and long-term engagement.

To test this, I designed “Text or Unmatch,” a mechanism requiring users to send a message to their match before continuing to swipe. This approach leveraged the Zeigarnik Effect, which suggests that people are more likely to complete an interrupted task, creating an intrinsic motivation to engage in conversations rather than accumulate passive matches.

Execution & Design Decisions

  1. Interrupting Passive Behavior: Swiping was gated by the requirement to initiate a conversation, nudging users toward active participation.

  2. Integrated Message Prompts: The first message preview was embedded in the swipe interface, reducing cognitive load and making engagement effortless.

  3. Optimizing Language for Engagement: Usability testing revealed that “matching” carried romantic connotations. We repositioned the feature as “Teaming Up”, better aligning with Mello’s brand values and community-driven vision.

User Testing Insights & Strategic Recommendation

During testing, an unexpected behavioral insight emerged—parents were more interested in connecting over shared interests rather than personal one-on-one interactions. This indicated a misalignment between the engagement mechanism and user needs. While the swiping feature successfully increased initial engagement, a group-based interaction model was a more scalable solution for long-term retention and community-building.

Recommendation: Pivoting to Interest-Based Group Matching

Rather than optimizing one-on-one interactions, I recommended shifting towards interest-based group matching, enabling users to join micro-communities based on shared parenting experiences. This transition would:

  • Enhance engagement density by fostering ongoing discussions within groups rather than isolated one-on-one interactions.

  • Improve retention by providing structured community participation rather than ephemeral swiping-based engagement.

  • Align with Mello’s core mission of building a support network for parents, strengthening both user value and business objectives.

Results & Strategic Impact

Through testing and user feedback, it was clear that requiring interaction before continuing swiping led to deeper engagement. However, shifting toward interest-based groups became the more strategic direction for sustained growth.

Takeaways

  • Product-market fit isn’t static—engagement strategies must evolve. Initial engagement mechanisms may succeed, but continuous iteration based on user behavior is necessary to drive long-term value.

  • Strategic friction is a tool, not a blocker. The right kind of friction, like conversation gating, can increase activation and retention by reinforcing meaningful engagement over empty interactions.

  • Community-driven engagement models scale better than transactional ones. Shifting from one-on-one swiping to interest-based groups provides compounding value and stronger retention loops.

  • Behavioral design should drive retention, not just acquisition. Swiping mechanics can attract users, but deeper habit-forming mechanisms are required to sustain engagement over time.

  • Growth design isn’t just about features—it’s about ecosystems. A successful engagement strategy aligns interaction design, business goals, and user psychology into a scalable system.

What’s Next?

This case reinforced the importance of designing for sustainable engagement rather than short-term interaction spikes. Moving forward, I would explore:

  • A/B testing variations of group-matching mechanics to refine onboarding and participation rates.

  • Layering gamification and habit-forming triggers to incentivize ongoing engagement within micro-communities.

  • Further optimizing the balance between friction and accessibility to ensure ease of participation without reducing engagement depth.

By continuously refining engagement models based on behavioral insights and growth metrics, we can create scalable, high-impact product experiences that drive long-term user retention.

Takeaways

  • Product-market fit isn’t static—engagement strategies must evolve. Initial engagement mechanisms may succeed, but continuous iteration based on user behavior is necessary to drive long-term value.

  • Strategic friction is a tool, not a blocker. The right kind of friction, like conversation gating, can increase activation and retention by reinforcing meaningful engagement over empty interactions.

  • Community-driven engagement models scale better than transactional ones. Shifting from one-on-one swiping to interest-based groups provides compounding value and stronger retention loops.

  • Behavioral design should drive retention, not just acquisition. Swiping mechanics can attract users, but deeper habit-forming mechanisms are required to sustain engagement over time.

  • Growth design isn’t just about features—it’s about ecosystems. A successful engagement strategy aligns interaction design, business goals, and user psychology into a scalable system.

What’s Next?

This case reinforced the importance of designing for sustainable engagement rather than short-term interaction spikes. Moving forward, I would explore:

  • A/B testing variations of group-matching mechanics to refine onboarding and participation rates.

  • Layering gamification and habit-forming triggers to incentivize ongoing engagement within micro-communities.

  • Further optimizing the balance between friction and accessibility to ensure ease of participation without reducing engagement depth.

By continuously refining engagement models based on behavioral insights and growth metrics, we can create scalable, high-impact product experiences that drive long-term user retention.

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