Buy When the Price Drops Under Your Number
For the thing you want, just not at this price. Pick the product page, name your number, and DuckyHelper keeps watching. Each check is one quick call to the store's API it learned, and when the price drops under your number it fills the cart and asks you before it pays.
“Watch these headphones on Amazon and buy them when they drop under $80. Ask me first.”
- 01Set it once: the page, your price, how often
- 02Write small tools for Amazon, onceSmall JavaScript tools made from how Amazon already works. The next run calls them directly.
getProduct(id)getPrice(id)addToCart(id) - 03Check the price each morning in one quick call
- 04Add it to the cart when it's under your number
- 05Ask before it paysSlide to pay, or say not now.
You getBuy at your price, without watching. It keeps checking until the price is right, and it's built to ask for your OK before it buys.
A run, drawn from this page · early access on Mac
It's built to stop at checkout.
It fills everything in and is built to stop before paying. You see what it's buying and the total, then slide to pay or say not now. Your saved card stays yours: DuckyHelper is built not to type the number.
If it hits a sign-in, you sign in yourself. It's built not to type your passwords or card numbers.
Buy the headphones$78.99
Under your $80. It added them to the cart and stopped here.
- Store
- Amazon
- Your card
- Your saved card
Your saved card. DuckyHelper never sees the number.
Example amounts
Set it once. It keeps going.
This one is always on. Every morning at 8, it checks amazon.com through the API it learned, so each run is quick, and every run lands in the history.
It's still built to ask before it sends or pays. Always-on automations are in early access on Mac.
New automation- Site
- amazon.com
- What
- Buy these headphones when they drop under $80. Ask me before paying.
- When
- Every morning at 8
- Runs
- Always on · through the API it learned
- Checked the price: $94, no changeToday 8:00
- Checked the price: $94, down from $99Yesterday
- Checked the price: $99Mon 8:00
Before you ask it.
What do I say?
Press fn (Ctrl+Shift+Space on Windows and Linux) and ask out loud, in your own words, like "Watch these headphones on Amazon and buy them when they drop under $80. Ask me first."
Why is the second time faster?
The first time, it writes small JavaScript tools for Amazon and builds an API from each site's own buttons, forms and requests. After that it calls them directly, so the job runs in one go instead of click by click. It costs less and breaks less.
Will it pay without me?
It's built to ask first before it sends a message or pays for anything, and to wait for your yes. It may not recognize every send or payment, so keep an eye on tasks that involve messages or money. It's built not to type your passwords or card numbers: you sign in yourself, and it picks up from there.
Why not just do it by hand?
Prices move every week, and checking by hand means you either overpay or miss the sale.
Can it keep doing this on its own?
Yes, that's the point of this one. Every morning at 8, it checks amazon.com through the API it learned, so each run is quick. Pause or change it any time.
Can I use this today?
Doing jobs in your apps is in early access on Mac. Talking to DuckyHelper, and having it see your screen and draw on it, works today on Mac, Windows and Linux.
- Always onEarly access
“Whenever a recruiter messages me on LinkedIn, reply with my template. Ask me first for anything else.”
Reply to New LinkedIn Recruiter Messages
See it run
- Always onEarly access
“Whenever a new Shopify order comes in, add it to my Shipping sheet with items, address and gift note.”
Every New Shopify Order Into the Shipping Sheet
See it run
- Always onEarly access
“Whenever something new is posted in my Canvas courses, put it on my Google Calendar with a reminder two days before.”
Every New Canvas Assignment on Your Calendar
See it run
Do anything
Ask it a question or hand it a job, in any app.
Doing jobs for you is in early access on Mac. Asking works on Mac, Windows and Linux.