From one WhatsApp message
to your personal Costco advisor
No app install · No tech skills · Register in 30 seconds
Powered by 2.5 years of real data
What is Flyer data?
Every week, Costco releases a promotional flyer listing all discounted items — including original prices, sale prices, savings amounts, and promotion duration. We capture this data automatically every week.
131 consecutive weeks
Starting from late 2023, we've automatically collected, processed, and stored East and West Canada Costco flyer data every single week — building a continuous 2.5-year historical record of 547 SKUs.
Auto-updated every week
Promotion data is scraped daily. When new weekly data is detected (typically Monday), it is automatically processed and human-reviewed before the latest promotions are imported. Briefings are then pushed on Monday or Tuesday. A second wave follows on weekends if new price drops are found.
How to get started
Contact Us on WhatsApp
Scan the QR code or click the link to start a conversation. Tell us you want to use SmartBuy — in English or Chinese.
- No forms to fill out, no account to create
- We answer any questions you have
- You decide if you want to continue at your own pace
Get Your Invite Code — Register in 30 Seconds
We send you an invite code. Send it to the AI assistant, enter your name, and you're in. That's it.
- No password, no email signup
- The AI greets you and walks you through your first steps
- Your first weekly briefing arrives the following Monday
Build Your Household Shopping List (Optional)
Tell the AI in plain language what your household regularly buys. This unlocks personalized weekly briefings.
- Takes about 5–10 minutes
- Natural language — just describe what you buy
- Can be updated anytime by chatting
Receive Your Weekly Briefing. Ask Anytime.
Every Monday or Tuesday, your personalized briefing arrives automatically after the latest promotion data has been processed and reviewed. Ask about any product's price history at any time.
- No maintenance required from you
- System updates automatically every week — two waves if new price drops appear on weekends
- Log purchases by text or PDF receipt to unlock smarter features over time
No app download · No technical setup · English & Chinese supported
How we protect your data
Stored on private servers
All user data is stored on our private servers. No connection to any third-party cloud storage (Google, AWS, Azure, etc.).
Your data is isolated
Every user's shopping list, purchase records, and consumption data are completely isolated. The system enforces user-ID filtering on every database query.
No data sharing
We do not sell, share, or transfer your personal data to any third party. Your shopping habits are yours alone.
Delete anytime
You can request full deletion of your data at any time by contacting us on WhatsApp.
Common concerns
"Do I need to be tech-savvy?"
Not at all. If you can use WhatsApp, you can use SmartBuy. There is nothing to install, configure, or maintain.
"What if I stop going to Costco for a while?"
No problem. Just stop logging purchases. Your data stays safe, and you can resume anytime without losing your history.
"Is my purchase history sensitive?"
We understand. Purchase records are stored privately, isolated per user, and never shared. You can delete everything at any time.
"What if the briefing isn't useful to me?"
You can turn off weekly briefings at any time by telling the AI. You can still use the price analysis features on demand.
Ready to start?
The first step is one WhatsApp message — no commitment, no tech knowledge required.
Get Started on WhatsAppEnglish & Chinese · Serving Canada · No app install