Best Appifyfor Shopify merchantsBest Appifyfor Shopify merchants
Use REZ’s Preorders and Notify Me tools to create waitlists for out of stock products. Accept pre-order, backorder, and presale orders. Send back in stock alert
Free plan available, paid plans from $4.99/month. Prices are the published USD list prices on the Shopify App Store and exclude usage charges.
| Plan | Price |
|---|---|
| Free | Free |
| Basic | $4.99/month |
| Growth | $14.99/month |
| Scale | $28.99/month |
The ladder spans 6× from the cheapest paid plan to the most expensive, so the price you start on is unlikely to be the price you stay on — check which limit moves you up a tier.
100% of ratings are 4 or 5 stars, and 2 merchants have left a 1-star review.
Across the 80 most recent reviews, the merchants writing them were mostly in United States, United Kingdom, Australia. 0% had been running the app for a year or more before reviewing it. The developer replied to 0% of them.
At $4.99/mo to start, REZ Preorder, Back In Stock is priced below the category — the median entry price across 6 apps in this category is $15/mo.
Aggregated from 49 reviews with written feedback — we analyse the sentiment behind the ratings, we don't reprint reviews.
From our daily App Store rank tracking and review history — signals a static listing doesn't show.
Measured against the 21 reviewed apps in Email marketing, where it currently sits at #8 of 21 listings.
| REZ Preorder, Back In Stock | Email marketing median | |
|---|---|---|
| Rating | 5 | 4.8 |
| Reviews | 1,379 | 636 |
That is 2× the review volume of the typical app in this category — the rating is carrying a lot more evidence than most.
We track Shopify App Store search results daily. REZ Preorder, Back In Stock currently sits at #1 for “depo”, and is in the top 10 for 23 of the terms we track it on.
| Search term | Position | How contested |
|---|---|---|
| depo | #1 | Hard(77/100) |
| pre orders | #1 | Brutal(84/100) |
| restock | #2 | Brutal(84/100) |
| baback | #2 | Hard(78/100) |
| preorders | #3 | Brutal(81/100) |
| back in stock | #3 | Hard(79/100) |
| notify me | #3 | Hard(73/100) |
| preorder | #3 | Brutal(81/100) |
| orderly | #4 | Brutal(81/100) |
| back in stock alert | #4 | Hard(79/100) |
| orders | #4 | Brutal(82/100) |
| notify | #5 | Hard(73/100) |
Its most contested win is “pre orders” at #1, a term we score 84/100 for difficulty — the apps competing for it hold thousands of reviews between them.
Showing its 12 strongest positions of 25 tracked search terms.
The most-reviewed apps in Email marketing, with their current rating and entry price.
| App | Rating | Reviews | Price from | Compare |
|---|---|---|---|---|
| Shopify Flow | 4.7 | 11,978 | — | compare |
| Pop Convert ‑ Pop Ups, Banners | 4.9 | 8,585 | $15/mo | compare |
| SendWILL Popup Email Marketing | 4.9 | 7,484 | — | compare |
| Klaviyo: Email Marketing & SMS | 4.7 | 2,993 | $15/mo | compare |
| Omnisend Email Marketing & SMS | 4.8 | 2,950 | $16/mo | compare |
| Brevo PushOwl: Email,Push,SMS | 4.8 | 2,026 | $19/mo | compare |
| CWILL(Trustoo) Product Reviews | 4.9 | 1,501 | $11.99/mo | compare |
| Mailchimp Email SMS Marketing | 4.8 | 1,345 | $13/mo | compare |
Built by REZ Commerce, on the App Store since May 2025.
REZ Preorder, Back In Stock has a free plan, and paid plans start at $4.99 per month. The free tier is normally capped on volume, so check the limit against what your store does today.
REZ Preorder, Back In Stock publishes 4 plans: Free (free), Basic at $4.99/month, Growth at $14.99/month, Scale at $28.99/month. These are list prices from the Shopify App Store and exclude any usage-based charges.
REZ Preorder, Back In Stock holds 5 out of 5 from 1,379 merchant reviews, with 100% of them at 4 or 5 stars. That is a large enough sample to take the rating seriously — only about 2% of apps on the store reach 1,000 reviews.
REZ Preorder, Back In Stock currently ranks #1 for "depo" in Shopify App Store search, based on our daily rank tracking.
The most-reviewed alternatives in Email marketing are Shopify Flow, Pop Convert ‑ Pop Ups, Banners and SendWILL Popup Email Marketing. The comparison table above shows each one's rating, review count and entry price.
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