STAMPEDE is an AI-powered loyalty and marketing platform for local businesses, starting at $50 per outlet per month. It replaces paper stamp cards with a digital system that works via QR code — no app download, no technical setup required. STAMPEDE AI PTE. LTD. (UEN 202611946M) is headquartered in Singapore.
CHA MULAN 茶木兰 is a bubble tea chain with 8 outlets across Singapore — including Jewel Changi Airport, Suntec City, AMK Central, IMM, Marine Parade, Chinatown Complex, Bedok 216 Market, and ABC Brickworks Market. The chain joined STAMPEDE on March 20, 2026.
As of writing, they have more than 3,400 loyalty members. A 54.4% coupon redemption rate. And weekly signups have climbed every week for the past four weeks.
This is what running a bubble tea loyalty program at chain scale actually looks like.
The problem
Multi-outlet F&B has a problem single-stall operators don't.
A customer who buys a drink at one outlet and another at a different outlet the next day is two strangers to the business. There's no shared customer view, no recognition, no loyalty across the chain. Whatever the customer earned at one branch is invisible at the next.
Most loyalty systems built for chains solve this by requiring an app download. That moves the problem rather than solving it — bubble tea customers aren't going to download an app to save $3.
The other option — paper stamp cards branded per-outlet — fragments the customer further. Eight outlets, eight paper cards, none of them shared.
"Low signup rate for most memberships is because customers are required to download apps OR take more than 1 minute to join a web app."
— Josiah Tan, Co-founder of CHA MULAN
The setup
CHA MULAN went live on STAMPEDE on March 20, 2026. The full chain — all 8 outlets — was configured in the same setup pass.
Here's what was involved:
Brand identity (logo, primary color) configured in the setup wizard
10-stamp card with 3 active milestones:
4 stamps: 50% OFF 2nd Cup
7 stamps: 1 FREE Topping
10 stamps: $3 OFF entire bill
Tiered referral program — the referrer earns escalating rewards as they bring more friends (20% OFF 1 Cup at 1 referral, Buy 2 Get 1 FREE at 2–3, 1 FREE Large Cup at 4 / 6 / 8, $10 OFF Voucher at 10 / 12). The referred friend gets 1 FREE Upgrade to Large Cup on their first visit.
Multi-branch setup: all 8 outlets added with the same brand QR code — branch attribution happens automatically at the scanner.
The customer experience works the same at every outlet: scan QR code with phone camera → enter phone number → get first stamp. One identity across all 8 outlets. Stamps earned at one outlet count toward the same card filled at another.
"My members could sign up within 30 seconds on any phone without downloading an app. PLUS, they can re-log in within 5 seconds without memorising any URL or open any app."
— Josiah Tan
The numbers
What worked
One customer identity across the chain
The single biggest unlock for multi-outlet F&B. A customer who scans at any CHA MULAN outlet sees the same card at any other. Stamps accumulate to one card regardless of outlet. There's no "different stamp card per branch" fragmentation that paper systems force on chains.
For the customer, this means there's a reason to come back — to ANY outlet — instead of treating each branch as a separate transaction.
Loyalty volume distributes across the chain
Stamping activity flows across all 8 outlets — high-traffic and neighborhood alike. The chain effect is real: customers earned at one branch often redeem at another, and the same loyalty card travels with them across Singapore.
Referrals at chain scale
More than 300 successful referrals to date. Because the referrer reward is tiered, each successful referral pulls the customer closer to the next bigger reward — a power-user pattern that compounds over time. These referred customers function as a free acquisition channel; the chain pays only the reward, not a cost-per-click.
"In the past, my members could not be rewarded when they refer friends. But now I can reward them for bringing new paying customers to my stores!"
— Josiah Tan
Milestone structure tuned to a bubble tea menu
The 4 / 7 / 10 reward structure reflects a real bubble tea purchase journey. 50% Off 2nd Cup at 4 stamps creates an immediate same-visit upsell. 1 FREE Topping at 7 stamps lands when customers are deep in the card. $3 OFF at 10 stamps is the close-the-card payoff.
Three milestones on a 10-stamp card means the customer is always 3–4 visits from the next reward — well-suited to high-frequency bubble tea consumption.
Weekly growth is climbing
New signups have grown every week for the past four weeks. The chain is now adding hundreds of new members each week — and the weekly rate is still accelerating.
What we learned
Multi-outlet customers don't think in branches. They think in brand. A loyalty system that recognizes this — and earns/redeems stamps at any outlet — outperforms per-branch paper cards. CHA MULAN's 54.4% coupon redemption rate, versus the 10–20% industry average for paper, comes in part from data accessibility and in part from the cross-outlet identity.
Tiered referrals fit chain dynamics. A single power referrer can earn meaningfully escalating rewards by bringing in friends across the chain. The referral isn't a one-outlet event — friends earned via referral are loyal to the brand, not to a single branch.
High-frequency F&B rewards milestone density. Bubble tea is a short-cycle product; customers may return weekly or more often. A 10-stamp card with three milestones (4, 7, 10) keeps customers close to the next reward almost continuously.
What's available but not yet activated
STAMPEDE has features CHA MULAN has access to but hasn't turned on at the time of writing:
WhatsApp automations — birthday rewards, near-milestone nudges, win-back messages for inactive customers. WhatsApp reaches 84% of Singapore's internet users; CHA MULAN's master automations toggle is currently off.
Magic Ads — AI-generated Instagram and Facebook ad campaigns with offline attribution back to stamps and coupon claims.
AI weekly reports — plain-English business insights generated every Monday, including outlet comparison, customer cohort recovery, and channel-by-channel performance.
Push notifications — browser-based push for customers who added the loyalty card to their home screen.
STAMPEDE POS — built-in counter and self-order modes. Currently not enabled at CHA MULAN.
As these features are activated, we'll update this case study with results.
Try it at your chain
Set up free at stampede.sg/signup. Takes 15 minutes per outlet. Pay only when you go live.
See the equivalent single-stall case study: OMMA Chicken Soup: 2,500 Members and Counting at a Bedok Hawker Stall.
Bubble tea is one of APAC's fastest-growing F&B segments — the APAC bubble tea market is projected to grow at a double-digit CAGR through 2029.
More guides: The Restaurant Growth Stack · All STAMPEDE features