Stackback turns your everyday Amazon purchases into fractional S&P 500 shares, silently, automatically, every time you shop.
Add Stackback to Chrome in seconds. It runs quietly in the background, no setup, no configuration needed.
Link your free Alpaca account. Takes 3 minutes. Your cashback will automatically invest into VOO, the S&P 500 ETF.
Every Amazon purchase earns cashback. It auto-invests the moment it clears. Watch your portfolio grow without moving a dollar.
"I've invested $340 this year without transferring a single dollar from my bank account. I just shop on Amazon like I always did."
"Finally a reason to feel good about my Amazon habit."
"Took 4 minutes to set up. Forget it's there until I open the dashboard."
"Acorns charged me $3/month just to round up. This is free and way smarter."
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Yes, completely free. Stackback earns revenue through partnerships. You never pay a cent. Your cashback goes directly into your investment account, automatically.
You'll need a free Alpaca brokerage account with a small deposit. Even $1 works. Alpaca holds your investments securely with SIPC protection. Stackback never touches your money directly.
By default, all cashback is automatically invested into VOO, Vanguard's S&P 500 ETF. It tracks the 500 largest US companies and has historically returned 7-10% annually. We plan to add more investment options in future.
Not at all. The extension is lightweight and runs in the background. Most users forget it's installed until they open the dashboard and see their portfolio growing.
Stackback only accesses Amazon pages to track your purchases and detect order confirmations. We never see your passwords, payment details, or personal information. Your Alpaca API keys are stored locally on your device only.
Yes. Stackback works with any Amazon account: Prime, regular, business. Just install the extension and shop as you normally would. Nothing about your Amazon experience changes.