Google Pay: Gamifying the Diwali Spirit
How a collectible-based "Stamps" campaign engaged 40M+ users and became a national phenomenon.
Overview
To drive user acquisition and retention in the highly competitive Indian fintech market, Google Pay launched its first-ever gamified marketing campaign. We designed a "collectible" experience where users earned cultural stamps for everyday transactions, leading to a viral social movement.
Role
Lead UI Designer (Visual Direction, Asset Creation, Marketing Collateral)
Timeline
8 Weeks (from ideation to launch)
Team
1 Senior UX Designer, Marketing Team, Engineering Team.
Impact
40M+ Active Users, 3-day campaign extension due to demand.
The goal of this campaign was to increase engagement and awareness of the app. This campaign was the first-ever marketing campaign to promote the app in Google Pay India.
Challenge
High Stakes, Short Window
Diwali is the biggest festive season in India, but it is also the most cluttered time for digital advertising. Our challenge was twofold:
1. Cultural Resonance:
Creating a visual language that felt "local" to every region in India.
2. Rapid Execution
Moving from a blank canvas to a high-fidelity, functional micro-app within the Google Pay ecosystem in just weeks.
The Strategy: The Power of Collectibles
We utilized the Endowment Effect and Loss Aversion. By giving users a "Stamp Book" that was partially filled, they felt a psychological drive to complete the set of five to win the ₹251 reward and a chance at the ₹1 Lakh grand prize.
Cultural Mapping (Research)
To ensure the game felt inclusive, we identified five universal symbols of Diwali:
🪔 Diya: The universal symbol of light.
🪅 Lantern: The "Akash Kandit" hung outside homes.
💎 Jhumkha: Representing the tradition of buying new jewelry/clothes.
🌹 Flower: Festive adornments used in every household.
🏵 Rangoli: The art of welcoming guests at the entrance.
Design & Technical Execution
High-Performance Asset Systems
With 40 million users—many on entry-level devices and limited data—the UI couldn't just look good; it had to be fast.
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Optimization:
I designed and exported 200+ assets using optimized SVG and Lottie frameworks to ensure animations were fluid on 3G networks.
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Scalable Architecture:
We built the experience within the "Offers" channel to leverage existing traffic. I designed a flat UI hierarchy to ensure the "Stamp Book" was always the hero, reducing navigation friction.
The "Social Loop" UX
To drive virality, we designed a "Gift & Request" feature. This allowed users to trade "spare" stamps with friends. This turned a financial utility app into a social game, creating a loop where users invited their entire contact list to join.
Iteration: From Complex to Clear
The Pivot
Early versions of the Jhumkha and Lantern were highly detailed. However, user testing showed that at small sizes on mobile screens, they became "muddy."
The Solution
I pivoted to a "Bold-Vector" style with high-contrast silhouettes. This ensured that even on low-resolution screens, the "Rare" stamps were instantly recognisable.
Impact & Legacy
The response was unprecedented, transforming a digital campaign into a cultural moment.
Massive Engagement
Over 40 million users participated, making it one of the most successful fintech campaigns in the region.
Viral Equity
The designs sparked thousands of internet memes and were even recreated as physical cupcakes by local bakeries—the ultimate sign of brand resonance.
Market Influence
This "Collectible Model" became the industry blueprint, later adopted by every major competitor in the Indian market (PhonePe, Paytm).
Reflections
Speed vs. Quality
This project taught me how to maintain "Pixel Perfection" while working at the speed of light.
Design for Emotion
I learned that in fintech, trust is built through utility, but loyalty is built through delight and cultural empathy.