CrystallBall




Founding Designer
Double Finance

Website
-
Service
Product, UX, Web

Area
Consumer  ·  B2C  ·  Finance


Crystallball (Separate Double’s product) is an AI-powered finance tool that helps users invest into tailored strategies using simple natural-language prompts. It combines intelligence, personalization, and simplicity to make investing intuitive and accessible.



Problem: Despite the rise of fintech products, there were no tools that allowed users to invest in strategies through fast, relevant, and personalized AI interactions. The goal was to create a unique and reliable experience that removes complexity from traditional investing.


Solution: Designed a seamless, human-centered interface that empowers users to discover and invest in strategies with a single prompt. Focused on clarity, trust, and real-time performance insights while ensuring scalability for future integrations.
Impact


1 Month

MVP was created


Built as a standalone experience with smooth synchronization to the Double account ecosystem, enabling effortless investing and portfolio management. Delivered the full product experience in just two weeks, from rough idea to fully workable prototype inlcuidng UX and interface.
Started by defining what exactly needed to be built and how to make the experience as intuitive as possible. The biggest challenge was time—we had only two weeks to complete the entire project from start to finish.


Exploring
The process began with defining what needed to be built and determining how to make the experience as intuitive as possible. The main challenge was the limited timeframe, with only two weeks allocated for the entire project from start to finish.
This is how WIP looks like



After initial testing and multiple discussions, a clear onboarding flow with guiding questions was introduced to better understand users’ needs before suggesting strategies.

After a few iterations, arrived at a simple and intuitive experience.
Homescreen needed to be simple—featuring just a prompt input and examples of what others are exploring, to spark curiosity and help users understand how the tool works.
Before proceed with right strategy for the user, we need to ask a few questions before to get most relevant answer.
Short information what is going to be done i nnext few minutes
Proccess of research
Process of research
Strategy ready-to-be invested in

This is the overall the whole flow of the app 
Details



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© Vitali Zahharov, 2025