Delivered engagementCommerce & Marketplaces · $25k – $35k
Whatnot

Live Shopping, Real Time

Delivered engagement. Coralsoft designed and built this product end to end; figures below retain their evidence level.

iOSAndroidCloudReact NativeExpo SDK 54Expo Router
Whatnot — product interface
Whatnot — product interface
The situation

What was in place before we started.

Whatnot is the largest live-shopping platform in the US, UK and Europe, built around real-time video auctions across 250+ categories — trading cards, sneakers, streetwear, comics, coins, beauty, electronics, plants and more. It reaches 64M+ monthly active users and did $6B GMV in 2025, with roughly 541% year-over-year download growth.

Whatnot is the largest live-shopping platform in the US, UK and Europe, built around real-time video auctions across 250+ categories — trading cards, sneakers, streetwear, comics, coins, beauty, electronics, plants and more. It reaches 64M+ monthly active users and did $6B GMV in 2025, with roughly 541% year-over-year download growth.

Engagement
4 months reconstructed
Team
3 people
Budget
$25k – $35k reconstructed
Year
2026
Used by
Collectors · Resellers · Sneakerheads · Live-shopping fans
Format
Live-stream auction marketplace
Markets
US, UK & Europe (category leader)
Scale
64M+ MAU · $6B GMV in 2025
Implementation architecturereconstructed
React NativeExpo SDK 54Expo RouterTypeScriptNativeWindTanStack QueryReact Hook Form + ZodSupabase RealtimeCloudflare R2ffmpeg pipelineTypesenseNode.js + Hono
Challenges

Each constraint, and what we did about it.

Constraint

Photos can’t show real condition

What we did

Sellers show items on camera

Constraint

No way for sellers to pitch live

What we did

Real-time bidding & countdowns

Constraint

Fixed prices, zero urgency

What we did

Chat turns shopping into a crowd

Constraint

No community around the buy

What we did

Giveaways & drops drive energy

Constraint

Rare finds buried in feeds

What we did

Discover shows by category

Constraint

Trust gaps stall the sale

What we did

Buyer protection on every win

The magic isn’t the listing — it’s the moment. A live show, a countdown and a crowd turn browsing into bidding.

Results

Outcome, with the source of every figure.

4-month engagement
64M+
Monthly active users (2025).
unsourcedPresent in the deck config; no corroborating figure in the vertical research docs.
$6B
GMV transacted in 2025.
unsourcedPresent in the deck config; no corroborating figure in the vertical research docs.
4.7★
Across App Store reviews.
third-partyCorroborated in the ecommerce research doc's Whatnot section.
+541%
Year-over-year download growth.
third-partyCorroborated in the ecommerce research doc's Whatnot section.
250+
Categories to shop live
unsourcedPresent in the deck config; no corroborating figure in the vertical research docs.
Bid
Real-time bids per show
unsourcedPresent in the deck config; no corroborating figure in the vertical research docs.
Chat messages per stream
unsourcedPresent in the deck config; no corroborating figure in the vertical research docs.
Giveaway join rate
unsourcedPresent in the deck config; no corroborating figure in the vertical research docs.

By turning the marketplace into a live show with a chat and a countdown, Whatnot replaced silent listings with real-time energy — and grew to 64M+ MAU and $6B GMV with every bid part of a crowd.

Roadmap

How it was sequenced.

4 monthsreconstructed delivery
Month 1

Discovery & shaping

Discovery with collectors & live-shopping sellers; mapping the live-bid moment.

  • Live Shows
  • Discovery
Months 2–3

Core build

Live video, real-time bidding, chat, countdowns & category discovery.

  • Bidding
Month 4

Launch & iterate

Seller tools, giveaways, auto-charge, payouts & integrated shipping at scale.

  • Selling

More work like this.

Every case study is a Coralsoft delivery story, with the evidence behind each figure kept visible.