Blacklark: Restock Alerts
Sold out is not the end of the sale.
Email shoppers once when a sold-out product is back, and see which products they want most.
Free for up to 50 alerts a month. $9 every 30 days for up to 2,500, with a 14-day free trial.
Coming to the Shopify App Store
Email us to hear when it launchesHow it works
A shopper signs up
On a sold-out product, a shopper enters their email in the Notify me form and confirms it by email.
You restock
When the item is back, each shopper who confirmed gets one email.
The address is erased
After the alert, on the schedule you set: 7, 30 or 90 days, or 12 months. The default is 30 days.
What you get
Know what to restock next
See how many shoppers are waiting for each product, get a weekly summary of your most-wanted products, and an alert when demand for one builds.
Illustration with example data, not a screenshot. Trace the revenue
The revenue figure counts orders placed within 7 days of an alert.
A list shoppers confirmed
Every sign-up is confirmed by email. Each sign-up gets one alert email, and the address is used for nothing else.
Speaks your shoppers’ language
Shopper-facing text in English, German, French, Spanish, Italian and Dutch. The form takes on your theme’s fonts and colours and adds one small script (about 7 KB).
A weekly summary of what shoppers want
Once a week you get an email with new sign-ups, alerts sent, and the orders placed within 7 days of an alert.
Pricing
Free
Up to 50 alerts a month
- Sign-ups are still collected at the limit.
- Alerts pause until the count starts again on the 1st of the month (UTC), or until you move to the paid plan.
Blacklark Standard
$9 every 30 days
- Up to 2,500 alerts a month
- 14-day free trial
An alert is one back-in-stock email sent to a shopper.
Privacy
Confirmed before anything is sent
Nothing is sent before the shopper confirms by email.
Erased after the alert
By default 30 days later, or after 7 or 90 days or 12 months, as you choose.
Sent through Resend
Resend keeps its own record of each sent email, with the address, for 30 days in the United States.
Questions
Does it send SMS?
No. Blacklark sends email.
What counts as an alert?
One back-in-stock email sent to a shopper. Confirmation emails, test emails and the emails Blacklark sends you do not count.
What happens at the limit?
Sign-ups are still collected. Alerts pause until the count starts again on the 1st of the month (UTC), or until you move to the paid plan.
Can I change the email?
Yes. Edit the subject, heading, body and button label, for each shopper language, and set the button colour and logo. Every alert email keeps an unsubscribe link.
Which languages are supported?
Shopper-facing text, meaning the form, the confirmation page and the emails, comes in English, German, French, Spanish, Italian and Dutch. The admin is in English.
Does it slow my store?
The Notify me block adds one script (about 7 KB) and one stylesheet (about 3 KB), sizes before compression. The form shows while the selected variant is sold out.
How do I remove it?
Uninstall Blacklark from your Shopify admin. Its theme block is part of the app, not added to your theme’s code, and is removed with the app.
Where is my data?
Blacklark keeps the shopper’s email address, product and language until the address is erased after the alert. Resend keeps its record of the sent email for 30 days in the United States. See the privacy policy.
Next time a product sells out, let shoppers ask to be told.
Coming to the Shopify App Store
Email us to hear when it launches