Your size is back. We'll tell you first.

Paste a link from any Shopify-based clothing or shoe brand, pick your size, and get an email the moment it restocks or drops in price.

Start free No card to start. 7 days free.
Your watchesWatching
Size 9 is backEmail sent 4:40 AM · $120.00
Get size 9
Wool Runner Mid, Natural
shop.example · sample
$120.00was $140.00
56788.591011
Checked 4 min ago Price, 30 days
Kids' Rain Shell, Navy
kids.example · sample
$58.00target $45
2T3T4567
SizeBack with sample data: a size that came back, and the sizes still being watched.

Three steps. Then stop refreshing.

Returns and quiet restocks come back one size at a time and sell out again fast. SizeBack keeps checking so you don't have to.

  1. Paste the product link

    From any Shopify-based brand, small clothing, shoe and kids' labels included. You see the photo, the price and every size, in stock or not, in seconds.

  2. Pick your exact size and color

    Tap the sold-out size you want. Add a target price if you'd happily buy it for less.

  3. Get an email when it's back or cheaper

    We check about every 10 minutes. The email links straight to your size on the brand's own site, plus the price history.

One plan. Everything in it.

$3.99a month
  • 25 watches on any Shopify-based brand
  • Checks about every 10 minutes
  • Restock and price-drop alerts by email
  • Price history on every watch
  • 7 days free, nothing charged until day 8. Cancel any time
Start free

Just want one item? Keep one watch free, checked about every 3 hours.

Before you start

Which stores does it work on?
Most brands that run their shop on Shopify, including thousands of small clothing, shoe and kids' brands. Paste a link and we tell you right away whether we can read it.
What if the store isn't on Shopify?
We say so straight away and won't charge you for it. Some stores block automated checks; we tell you when that happens.
Can it guarantee I get the item?
No. We tell you when your size shows as available. Restocks can sell out fast, so tap the link in the email quickly.
How do I cancel?
One click in your account, any time. No questions.
All questions

The small brands big trackers skip.

Store-list trackers cover only the shops on their list. Page monitors watch a page's text. SizeBack reads the store's own stock for your exact size, on any Shopify-based brand.

50 of 68
US-facing brand stores served their public product feed in an October 2026 test (dev.to).
 SizeBackStore-list trackers
(e.g. Restockalert.me)		Page monitors
(e.g. Monity.ai)
Which storesAny Shopify-based brand162 listed storesAny page
WatchesYour exact size and colorYour size, on listed storesChanges in the page's text
Price drops With price historyVariesIf you write the rule
Cost$3.99/mo, 7 days free£5.99/mo PremiumFree every 3 h; from $10/mo

Competitor prices and coverage from their own pricing pages, November 2026.

Stop refreshing. Start watching.

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