Swym alternative
A Swym Back in Stock alternative that re-checks stock before it emails
Swym sends restock alerts automatically when a product returns. Back in Stock re-verifies live stock the moment it sends — and it’s a flat $19/month with unlimited alerts, where Swym’s plans scale by alert volume.
by SlothRockethow an alert fires (or doesn’t)
Swym’s app is listed as “Swym Back in Stock Alerts”. Facts below are from that live listing.
How Back in Stock compares to Swym
| Back in Stock | Swym | |
|---|---|---|
| Re-checks live stock before each send | ✓ | Not advertised |
| Flat price, unlimited alerts | $19/mo · unlimited | Tiered by requests ($19.99 → $99.99) |
| Free plan | Free to start | 30-day trial (no free tier) |
| Email restock alerts | ✓ | ✓ |
Competitor facts from its live Shopify App Store listing, as of August 2026. Pricing and features change — check the current listing. We only compare on what each app publicly states.
The real difference: it re-checks stock before it sends
Most restock apps fire on the inventory webhook. We re-check before we send.
An inventory webhook reports a quantity, not whether the product can be bought. That gap sends emails for things nobody can buy — wrong location, unpublished product, sold out again, wrong variant. Back in Stock re-verifies live stock at the moment it sends, and holds the alert if the item isn’t actually purchasable.
The verdict
Want SMS, social retargeting and AI recommendations? Swym is the heavier toolkit for that. But if you want restock alerts that re-check the shelf before sending — and a flat $19/month instead of plans that climb to $99.99 by volume — that’s Back in Stock.
Pricing
Free to start. Flat $19/month when you grow.
Back in Stock is a flat $19/month with unlimited alerts, plus a free plan to start — where Swym runs $19.99 to $99.99/month by how many alert requests you send.