Shop Costco Smarter. Save More Every Week.
Your personal Costco shopping advisor, powered by 2.5 years of promotion history. Ask before you buy — just WhatsApp, no install, no tech skills needed.
Sound familiar?
We built SmartBuy for exactly these moments.
You're never sure if today's Costco price is actually a good deal.
AI compares against 131 weeks of history and gives you a clear verdict.
Buy too much and it piles up. Buy too little and you run out. Stockpiling is always a guess.
Precise stocking recommendations based on your actual consumption rate.
You buy something, then it goes on sale a week later. By the time you remember to return, the 30 days are up.
Automatic 30-day price adjustment radar — it monitors and alerts you before the deadline.
You never know which month is the best time to stock up on what.
Family Procurement Plan: auto-learns your household buying patterns and proactively reminds you when each item is at its best buying moment.
Your go-to brand isn't on sale, but you don't know if a substitute is worth it.
Brand rotation suggestions backed by historical pricing — not a guess.
You have too many things to track and end up forgetting half of them each trip.
Household shopping list that auto-matches your items to this week's flyer.
Four tiers of intelligence —
unlocked at your pace
Start using from day one. Add your shopping list. Log purchases. Family plan unlocks full procurement planning.
Ready to use — no setup needed
- 📊 Weekly Auto Briefing
- 🔍 Historical Price Analysis
- 🚦 Buy / Wait Traffic Light
- 🆕 First-Time Alert
Personalized service — one-time setup
- 🏠 Personalized Weekly Briefing
- ✅ Household List Matching
- 🔄 Brand Rotation Tips
Gets smarter the more you use it
- 🚨 30-Day Price Adjustment Radar
- 📦 Precise Stocking Recommendations
- ⏰ Restock Reminders
- 🧾 Receipt PDF Analysis
Whole-household procurement planning
- 🗂️ Family Procurement Plan
- 📅 Three-Track Monthly Rotation
- 🔔 Timely Promotion Alerts
- 📍 Saturday Purchase Confirmation
From one WhatsApp message
to your personal Costco advisor
Contact us on WhatsApp
Get your invite code — register in 30 seconds
Build your household shopping list (optional)
Receive your weekly briefing. Ask anytime.
No tech skills · No app install · English & Chinese supported
See Full Details →What it looks like in action
Price analysis on demand
Current: $21.99 (save $6.00)
📈 131-week history:
• All-time low: $21.99 ← this is it ✅
• Average: $23.40
• All-time high: $27.99
⏱ Avg cycle: every 8 weeks
Last seen: 10 weeks ago
💡 🟢 Buy now — all-time best price
30-day price adjustment radar
You bought 14 days ago:
Hisense 65" QLED 4K TV @ $696.99
This week's price: $626.99
You can claim back: $70.00
⏰ 16 days remaining in your 30-day window
→ Bring your receipt to Costco
→ Deadline: Jul 4
Reply "Done" to mark complete
Common questions
SmartBuy is a personal Costco shopping advisor that runs entirely over WhatsApp. It's powered by 2.5 years (131 weeks) of continuous Costco promotion history, and helps you decide whether a product is worth buying now or if you should wait for a better price.
Our primary data is sourced from Canada Costco's official flyers and other up-to-date promotion information — automatically collected, processed, and reviewed before being added to the database. Over 30,000 promotion records, accurate to the cent. This is supplemented by 131 weeks of Costco flyer OCR history which adds product images and specs. Primary data takes priority; historical OCR data fills in the gaps.
Yes. All user data is stored on private servers and is not connected to any third-party cloud storage. Your purchase records are completely private.
Built by
Kevin Ge
Founder, DoneEasy.ai · AI Solutions Architect
As a Costco regular and software engineer, I got tired of guessing whether a price was actually good. So I built SmartBuy: a data-driven advisor that knows 131 weeks of Costco history, and tells you exactly when to buy and when to wait.
More About Us →Ready to shop smarter?
Contact us on WhatsApp — get your invite code and start in under a minute.
Get Started on WhatsAppEnglish & Chinese · Always online · No commitment