LeDuc Restock Alerts vs Back in Stock (Appikon)
I'm Tyler, and I make LeDuc Restock Alerts. Appikon's Back in Stock is an established app that does more than mine: it sends SMS as well as email, connects to Klaviyo and Mailchimp, and supports multiple languages. Mine does one job, back in stock emails, for one flat price with no monthly email cap on the paid plan. Below is a side-by-side using only what Appikon's own App Store listing says and what my app actually does, so you can pick the one that fits your store.
Side by side
| LeDuc Restock Alerts | Back in Stock (Appikon) | |
|---|---|---|
| Free plan | Free: 50 alerts a month, every feature | Free: 10 emails/month |
| Paid plans | Pro: $9.99/month, unlimited alerts | Starter: $19.99/month (or $192/year), 300 emails/month Pro: $29.99/month (or $287.90/year), 1,000 emails/month Premium: $49.99/month (or $479.90/year), 3,000 emails/month |
| SMS cost | No SMS | From $0.05/message to $0.40/message based on the number of characters (all plans) |
| Free trial | 14 days on Pro | 7 days on paid plans |
| Notify me signup form on sold-out products | ✓ | ✓ |
| Email alerts | ✓ | ✓ |
| SMS alerts | — | ✓ (per-message charge) |
| Email design customization | ✓ all plans (heading, message, button text and colour, logo, footer; live preview and test email) | Paid plan ("Email/SMS template customizations", Starter and up) |
| Klaviyo / Mailchimp integration | — | Paid plan (Starter and up) |
| Multiple languages | — | Paid plan (Starter and up) |
| Subscriber export | ✓ CSV, all plans | Paid plan ("Data export", Starter and up) |
| Subscriber import (CSV) | ✓ all plans | Not listed |
| Demand insight | ✓ Most wanted list and alert click tracking | ✓ "back in stock alert analytics" |
| Collection page integration | — | Paid plan (Pro and up) |
| Countdown timer | — | Paid plan (Premium) |
Prices checked 2026-11-04 from the App Store listing. Plans change; check their listing for current prices. "Not listed" means their listing doesn't mention it, not that the app can't do it.
What theirs does that mine doesn't
- SMS alerts. Their listing offers back in stock alerts by email and SMS, plus SMS marketing tools. Mine sends email only.
- Integrations. Their listing says it works with Klaviyo, Mailchimp, Pushowl, Wiser and Zapier, with Mailchimp/Klaviyo integration on Starter and up. Mine has no integrations.
- Multiple languages. Their Starter plan and up list multiple languages support. Mine is English only.
- Back order reminders, collection page integration and a countdown timer. These are on their listing; mine has none of them.
If you need any of those, their app is the better choice, and I'd rather tell you that here than have you install mine and find out.
When mine is the better fit
- You want a flat price. Pro is $9.99 a month for unlimited alerts. There's no email cap to watch and no per-message charge.
- You only need email. Shoppers tap "Notify me when available", and the email goes out within seconds of a restock, with a 10-minute safety re-check in case Shopify's update is missed.
- You want it to look like your store on the free plan. The email comes from your store name, replies go to your inbox, and the design settings (with live preview and test email) are on every plan.
- You're bringing a list with you. CSV import and export are on every plan.
How to switch
- Export your subscribers from Back in Stock. Their listing shows "Data export" on Starter and up; if it gives you a CSV, keep that file. If your current app can't export subscribers as CSV, you can still switch, but existing sign-ups won't carry over.
- Install LeDuc Restock Alerts and open Subscribers → Import CSV. The file needs the columns
emailandvariant_id, and optionallyproduct_id. Up to 5,000 rows per file; rows already in the app are skipped. - On the app's home page, click Turn it on to enable the Notify me embed, then save your theme.
- Turn off Back in Stock's signup form, or uninstall it, so shoppers see only one Notify me button.
Get it
LeDuc Restock Alerts is in review for the Shopify App Store; this page will link to its listing once it is approved.
Setup steps, FAQ and support: LeDuc Restock Alerts support page. Questions? Email tyler@leducsystems.com.