ITERATIONS
Now that our goals and approach were set, I established this main design approach:
How might we reduce the cognitive load on the user by streamlining the UI and other details so customers can make their choice with confidence before the time runs out?
This helped me navigate/resolve the following considerations & iterations:
ITERATIONS: DEFAULT

- Should we have a default choice preselected? - Yes, to see if that can help increase deposits
- Do we stick to the same layout, or try something else? - Stakeholder preference was to stick to same layout due to customer familiarity
- Should we have same UI for all options, or mix? - Use mix since sticking to same layout
- Do we always need to show the disclaimer copy? - Yes, per our legal team
ITERATIONS: PRICE BUCKETS

- How many options will we have? - Stick to the same 4 (2 price buckets, 1 for custom amount, 1 for seamless pay)
- How should user make their choice? How should that be reflected in the UI? - Use the chips design pattern but make it evenly distributed across the width of the screen
ITERATIONS: CUSTOM AMOUNT

- Do we keep/remove the ability to enter a custom amount? - Keep due to the engagement data we saw, and flexibility it gives users
ITERATIONS: SEAMLESS PAY

- How can reduce cognitive load for this option? - Reduce copy
- When should we show this option? - Do not show to first time users since it was prone to be misunderstood; only show to postFBM users
- Can we change how this works? - No, we could change the logic (i.e. the 10-minute pre-auth)
ITERATIONS: OTHER

- Which CTA button styling should we use? - We wanted to try the version where the primary button was bigger in size to see if that could help with conversions as well
- Any other CTA changes? - Have the copy be dynamic to reflect how pricing options would reflect in time added
- Include ability to change payment method? - No because user only has 1 minute to decide
- Increase/reduce time to make a decision? - No because that could interfere with evaluating the results of other changes
FINAL DESIGNS
As I reviewed these iterations across several meetings, the product team and other stakeholders offered the following key feedback that contributed to making the final designs:
- Bottom sheet design pattern was applicable to all mobile platforms so we should leverage it
- CTA button sizes varied but could encourage more conversions
- They preferred to not stack the options on top of each other since it could appear as if it was "too much to read"
- The chip buttons should be easier to select and be more evenly distributed across the layout
- We should not give new users in particular the option to change their payment method at this moment (especially if they only have 1 minute to decide)
- We should not show "seamless pay" option for new users as it was prone to be misunderstood
- The disclaimer copy had to remain for all use cases

RESULTS
As mentioned earlier, we ran an A/B test across all platforms and although mobile app saw a 9.5% increase in deposits, responsive web platforms remained unaffected.
During retrospectives, it was determined that responsive web experiences more "noncommittal users" than mobile app because new users come in through different marketing channels. However, when you download an app, you're more likely to at least engage with it which was especially true for Keen since it's a niche marketplace.