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20% Abandonment Reduction: Turning Complexity into Confidence at By Miles

In 2025, I helped By Miles turn complex device activation into a confidence- building experience. Clearer guidance, faster setup, and a 20% drop in abandonment on the highest-friction screen through research and iteration.

Hand holding a By Miles Tracker device against a white background. The small black device measures miles driven for pay-per-mile car insurance.
Small device, big challenge. The By Miles Tracker powers pay-per-mile insurance and inspired a redesigned experience that helped members connect with confidence.

Summary (TL;DR)

A 12 percentage point reduction in abandonment on the highest-friction onboarding screen. Clearer setup guidance. Early signs of reduced support demand.

By rethinking how new members install and activate their Miles Tracker devices, I helped By Miles deliver a more human, reassuring, and data-driven onboarding experience. The work also reshaped how the company approaches experimentation and cross-functional problem solving.

Background: By Miles and the Tracker That Powers Pay-Per-Mile Insurance

By Miles is a UK-based car insurance company that helps people who drive less, pay less. Members pay an annual upfront fee to stay insured while parked, then a variable monthly cost based on their actual miles driven.

To track those miles accurately, each member receives a Miles Tracker, a small device about the size of a matchbox that plugs into their car’s OBD-II port. Once installed and activated, it automatically sends mileage data to the By Miles app, so members can see trips, costs, and driving insights in real time.

The app’s onboarding flow is therefore pivotal. It bridges the gap between purchase and first real-world use, a moment where clarity and reassurance can make or break trust.

The Challenge: Tackling Early-Stage Drop-Off

The Senior Product Manager identified a critical moment of friction, the period between purchasing a Miles Tracker policy and completing the first trip.

Most new members followed our in-app onboarding journey, giving us a rare opportunity to build confidence early. Yet, 6–10% of policies were cancelled within 30 days due to comprehension issues, meaning members simply didn’t understand how the policy worked.

Our goals were ambitious but focused:

By Miles Tracker packaging with instructions to download the app and plug the device into the car.
The Miles Tracker packaging promises a simple, one-minute setup, yet our data and member feedback revealed that this early step was where many began to drop off.

Mapping the Post-Purchase Experience

To understand the problem’s full scale, I co-facilitated a workshop with colleagues from Product, Marketing, Dev, CX, and Compliance.

What started as an app-specific review quickly turned into a revelation about the entire post-purchase ecosystem. I discovered friction not only in the onboarding flow but across:

The challenge wasn’t a single broken step. It was a fragmented experience stretching across multiple touchpoints.

Finding the Friction: What the Data Revealed

To explore the problem space further, I turned to our analytics to uncover where members were dropping off. One metric leapt out:

59% of members were abandoning the flow on the “Hold tight” screen.

That screen was supposed to reassure members that their Miles Tracker was activating. Instead, it was the point where over half simply gave up.

Something about that message, “Sit back, relax, and have a cuppa”, wasn’t working.

A funnel chart showing completion and abandonment rates across six steps of the Miles Tracker onboarding journey. The data shows a pronounced 59% abandonment rate at the “Hold Tight” stage, indicating this as the most critical friction point within the wider flow.
Onboarding funnel data revealed significant friction during the “Hold Tight” stage, where nearly 60% of users abandoned before their Miles Tracker activated. While the project involved a full end-to-end redesign of the onboarding flow, this sharp drop-off highlighted the urgency of improving this particular step to rebuild user confidence and reduce early-stage frustration.

Sitting in Our Members’ Driving Seat

To understand why so many members were dropping off, I combined first-hand experience with a deeper review of the full post-purchase journey.

I ordered a Miles Tracker, waited for it to arrive, and went through onboarding like any new member would, sitting in my car on a rainy morning, phone in hand. The light wasn’t terrible, but it was dim enough to make certain steps awkward, a realistic reminder that not every installation happens in ideal conditions.

That moment behind the wheel helped bring to life what the data and CX insights had already been hinting at. Across my discovery work, I uncovered recurring friction points that made installation more confusing and emotionally charged than intended:

The combination of these issues painted a clear picture: this wasn’t just a UI problem, it was a service-level challenge affecting every touchpoint, physical, digital, and human.

Experiencing the journey firsthand gave me empathy for the stress and uncertainty members felt, while the broader discovery confirmed that this stress was systemic, not situational. Together, they provided the clarity needed to reframe the problem around confidence, not just connection.

Going Undercover: Testing the Support Experience

To understand how support factored into the onboarding journey, I went a step further and contacted our Customer Experience team anonymously via live chat, posing as a new member who was struggling to activate their Tracker.

The results were eye-opening. While the first response arrived within 30 seconds, the language used created new friction rather than resolving it. Phrases such as “black box” and “LED light” surfaced, despite being terms I deliberately avoid for clarity and compliance reasons.

As a company that proudly won a Plain English Award in 2018, I take great care to communicate using plain, simple, and accessible language. In this instance, a friendlier term such as “flashing light” or “blinking light” would have been clearer and more reassuring for members who are less familiar with technical jargon.

When the conversation paused for more than eight minutes midway through, I experienced the same frustration many members would feel — a moment of uncertainty with no progress indicator or fallback option.

Later, I received an extension cable in an unlabelled bag with no explanation of how to use it, forcing me to search YouTube for help. This reinforced a critical gap: our digital and human touchpoints weren’t working in unison.

These findings revealed that even with a well-designed interface, inconsistent language, tone, or handovers could undermine confidence just as much as a broken flow.

From Discovery to Definition

After auditing the full end-to-end experience, I discovered that new members had to progress through 11 to 13 app screens before even reaching the first Miles Tracker onboarding or activation step. This included multiple welcome screens, login and verification flows, and biometric setup prompts, all before any meaningful progress toward the core task of installing their Tracker.

It was clear the problem wasn’t just about design quality, but about focus and sequencing. To move forward, I broke the broader challenge into five clear, manageable problem statements:

  1. Balancing efficiency and education in onboarding.
  2. Reducing anxiety and uncertainty during activation.
  3. Guiding members to the app for installation and activation.
  4. Enhancing support accessibility and consistency.
  5. Tailoring onboarding to different levels of tech confidence.

Each was reframed using techniques like abstraction laddering and inversion, helping us articulate why the problem mattered.

I then defined UX success metrics, including onboarding completion rate, Time to Value (TTV), and improved app-store sentiment, linking them directly to By Miles’ OKRs around profitability, ease, retention, and sales.

Ideation and Early Testing

I developed ideas ranging from simple enhancements like video tutorials to ambitious innovations like AR-assisted port location and live video installation support.

Each was documented with a clear description, hypothesis, and measurable success criteria.

To prioritise, I ran Sacrificial Concept Testing, sharing deliberately rough concepts to spark honest reactions without attachment to fidelity.

I initially hand-sketched everything, but then experimented with Generative AI to visualise early ideas. It was a valuable experiment, though in truth, I spent hours chasing perfection that wasn’t needed.

If I were to do it again, I’d still use AI, but timebox it ruthlessly and trust my design instincts sooner.

A grid of AI-generated mobile screens showing various design iterations for simplifying the Miles Tracker installation experience.
A selection of early AI-generated concepts showing different approaches to installation guidance before narrowing down to ideas worth testing with real drivers.

Testing with Real Drivers

Using UserTesting, I ran a remote, unmoderated study with six participants split into two cohorts:

Across both groups, several insights stood out:

The results gave us a clear direction, clarity, control, and reassurance were non-negotiable.

Quote from a research participant describing difficulty reaching their car’s port and suggesting that video installation guidance would be helpful.
A research participant describing the physical challenges of installing a tracker in their own car, reinforcing how important clear, visual guidance can be.

Prototyping and Iteration

I then created low- to mid-fidelity prototypes focused on each of the five problem statements, iterating through two rounds of user testing before handing over refined designs to our Product Designer for high-fidelity UI work.

One of the biggest breakthroughs came from the “Hold tight” screen. I renamed it to the more action-orientated title of “Connecting…” and redesigned it around transparency and reassurance.

Research showed that:

In essence, simplicity created confidence, and flexibility created trust.

Early wireframes showing the connection and success states for the ‘Connecting to your Miles Tracker’ experience, including activating, success, and troubleshooting screens.
Early wireframes for the ‘Connecting to your Miles Tracker’ experience. These focus specifically on the connection and success states, exploring how to keep members informed, reassured, and supported while their device activates or if issues arise.
Final UI designs for the Connecting to your Miles Tracker flow, showing how research insights informed the structure, flow, and tone of the high-fidelity experience.
Final UI designs for the ‘Connecting to your Miles Tracker’ flow. While I did not produce the UI designs, they closely reflect the high-fidelity representation of the revised low-to-mid fidelity concepts I developed and validated through two rounds of user testing. They show how the research insights shaped the structure, flow, and tone of the final experience.

From Concept to Continuous Improvement

Once validated, we began rolling out the new experience incrementally from June 2025.

Rather than a “big-bang” launch, I championed a continuous improvement approach, allowing us to monitor results, gather data, and refine as we went.

This shift in release strategy marked a wider cultural change. We stopped treating onboarding as a static journey and began treating it as a living, measurable system.

Impact and Reflection

The results spoke clearly:

Macro-level results were more nuanced:

Overall, the redesign improved clarity, tone, and user confidence, even if structural issues, such as pre-purchase messaging and hardware reliability, continued to shape the bigger picture.

This experience highlighted a key truth: UX design can move the needle, but lasting impact requires cross-functional alignment.

The project also highlighted how service and product experiences must be designed together. My “secret shopper” tests showed that terminology, support handovers, and after-hours availability were just as influential on user confidence as the in-app design itself.

Learnings and What I Would Do Differently

This project was as much about empathy and process as it was about pixels. It taught me how deeply human experiences can be shaped by small, systemic details.

If I could do it again, I would:

What I would absolutely do again:

This project reminded me that great onboarding isn’t about screens or devices.
It’s about helping people feel confident, capable, and cared for from the very first moment.

A By Miles member smiling while standing beside their car, representing confidence and ease after successfully connecting their Miles Tracker.
Putting members first. Every improvement, test, and design decision was made with real drivers in mind, to make connecting and driving with By Miles feel simpler, calmer, and more transparent.

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