What happens when you try to book a car and the screen feels… off?
You’re not quite sure where to look, the icons don’t explain themselves. A bright orange button appears, but it’s unclear what you just selected (or why). You squint. You tap. You hesitate.
That hesitation? It’s friction. And friction kills flow.
We audited Cambio, a car-sharing app used in Belgium and Germany, and focused on one of its most crucial moments: the car reservation screen.
Our question was simple: how can we make this feel effortless?
At dualoop, we help product teams level up by designing interfaces that feel smooth, smart, and invisible in the best way. Sometimes, we dive into products we love and fix what doesn’t quite click.
Friction points on Cambio’s mobile app
To improve Cambio’s car reservation page, we identified three areas for improvement:
Consistency & standards
In the top-right corner of the screen, there’s an illustration that acts as a toggle between list view and map view, but that’s not clear right away. The visual doesn’t follow a widely recognised pattern, so most users will only discover what it does by tapping on it.
We also noticed some inconsistency in the bottom navigation: some icons in the bottom navigation have a description while others don’t. This can create confusion.
Usability heuristic 4: Consistency and Standards - Source
Aesthetic & minimalist design
Key information that users need to input is displayed with labels that mix text and icons. As labels are displayed both horizontally and vertically, it is difficult to quickly scan in one view, and difficult to read.
Usability heuristic 8: Aesthetic and Minimalist Design - Source
Accessibility & understanding
On this screen, additional explanations are partially hidden, cut off in a way that makes them unreadable. If a user doesn’t already understand how the system works, they’re unlikely to get the support they need.
We also saw that the difference between options is displayed only in orange. This is insufficient and also inaccessible to colourblind users. It is unclear what the different options mean and which one the user should select to continue, as there is no guidance or clear indication.
Usability heuristic 10: Help and Documentation - Source
Solution design : Our UX/UI improvements for Cambio’s car sharing app
We approached the redesign with one goal: reduce friction by simplifying the experience and guiding the user step by step.
We've evaluated the car reservation page, identifying key UX/UI and accessibility issues. Leveraging our expertise in product design, we have strategically applied our insights to enhance the page's overall usability.
The original screen combined both input and results on one page. We found it more effective to split them across two screens, one for entering search criteria, and one for browsing available cars.
Screen 1: Input information
✅ Users only need to input information.
The illustration on the top right corner has been removed to reduce confusion.
✅ The layout of the information input has been simplified and reduced to 3 fields: location, duration, and filters. There is no longer a mix of icons and text labels.
✅Each item in the menu now includes a label for consistency.
Screen 2: View results
✅ By default, the available cars are displayed on a map instead of a list, to visualise the distance to the user’s current location. Switching to a list view is still possible.
✅ Cars that don’t fully match the requested hours are not shown at this stage, to avoid unnecessary distractions.
Thanks to these changes, the path to booking a car becomes easier, faster, and more intuitive. Users can focus on what they want to do without unnecessary distractions.
A more fluid experience helps drive stronger engagement and increases the chances users will come back, again and again.
🔥 Want a free UX/UI audit for your product?
We love collaborating with teams who care about the details. A short UX audit can reveal quick wins that make a big difference both for your users and your business.
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