5.0Top-right quadrant
265 apps tracked, compared by rating, reviews and momentum
Never Miss a Sale with Shopify Stock Alert Apps Keep customers engaged and drive more sales with Stock Alert apps for Shopify. These tools notify shoppers when out-of-stock products become available, helping merchants recapture lost sales and manage demand effectively. Stock alerts ensure potential buyers stay informed and ready to purchase as soon as inventory is replenished. - Enable "Back in Stock" notifications via email, SMS, or push alerts. - Capture interested customers and grow your subscriber list. - Automate restock alerts to boost conversions effortlessly. - Display waitlists and demand indicators to create urgency. - Integrate seamlessly with Shopify for real-time inventory updates. Turn stock shortages into future sales with the best Stock Alert apps for Shopify. Keep your customers coming back!
Total apps
265
+21 this month
Avg. rating (Jul 2026)
4.6
+0.01 vs Jun
Competing for "BACK" Keyword
88 apps
High competition
26,600+
Shopify apps tracked
844,700+
Reviews analyzed
166
Categories covered
< 24h
Data freshness
100%
Shopify native data
Best for your use case
Q2 2026 awardsOne app per evaluation lens, awarded from review and momentum data. Click a badge to see it full size.
4.9Top tier on review quality
5.0Fastest growing this quarter
5.0High rating + review floor
Showing 1-24 of 265
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Do pre order, notify me, back in stock alert, restock waitlist
$0-$28.99/mo
Back in Stock alert & Restock alert for Out-of-Stock Waitlists
Pros
Cons
- Inaccessibility of support after app removal.
- Unwarranted review requests before product evaluation.
$0-$19/mo
The Notify Me! for pre order, waitlist, low stock & wish list
Pros
Cons
$0-$39.90/mo
Grow preorders with back in stock, restock alerts and waitlist
Pros
Cons
$0-$19/mo
Grow sales with preorders, 'notify me' & back in stock alerts
Pros
Cons
$0-$69/mo
Drive sales with Pre-order and Restock Alert
Pros
Cons
$0-$19.90/mo
Create urgency with real inventory or Manual stock mode
$4.99/mo
Pre-order manager & presale with back in stock alert waitlist
$0-$25/mo
Low Stock Alerts & Inventory Forecasting — Restock On Time
Pros
$4.99-$59.99/mo
Create presales, backorders & 'notify me' restock waitlists
Pros
Cons
$0-$59/mo
Back in stock automation, restock alerts to recover lost sales
Free
Grow sales with wishlist: save, share, re-stock alerts & more.
Pros
Cons
$0-$21.99/mo
Back in stock alerts to notify restock & preorder to grow sale
Pros
Cons
$0-$99/mo
Run preorder campaigns, take deposits, backorder & send alerts
$0-$99/mo
Restock alerts and waitlists for out of stock products
Pros
Cons
$0-$29/mo
Trigger FOMO w/ social proof, sales pop up & low stock counter
Pros
Free
Notify Me button + Email, SMS & WhatsApp restock alerts
Pros
Cons
$0-$14.99/mo
Create pre-orders with deposits & send back-in-stock alerts.
Pros
Free
Drive sales with back in stock alerts, preorder with discounts
$0-$16/mo
Grow sales with shareable wishlist, guest wishlist & gift list
Pros
Cons
$0-$49.90/mo
Wishlist Guru: Favorites List
4.887 reviews2 rank
Grow Sales with Guest Wish list, Share, Restock alert & more
Pros
$0-$19.99/mo
iAlert ‑ Low Stock Alert
4.785 reviews
Send rules based low inventory alert via email, slack easily
Pros
$0-$9.99/mo
Create urgency with low stock countdown and scarcity alerts
Pros
Cons
$0-$5.99/mo
Accept preorders now or enable notify me back in stock alerts
Pros
Cons
$0-$30/mo
Similar categories
Letsmetrix Grid®
Satisfaction x MomentumEvery app in this category placed against the others on two independent axes - Satisfaction (how happy merchants are) and Momentum (how fast it is growing).
How to read it: further right = happier customers, higher up = growing faster, bigger bubble = more reviews. Green / blue = a Leader / High Performer badge on the app's own page; amber Contender and grey Niche come from where the app sits on this chart. Blue ring = Built for Shopify.
Leaderstrong and growingHigh Performerstrong but slowingContendergrowing, quality catching upNicheniche or quietBuilt for Shopify
Shaded zones = the strong corner of the Satisfaction x Momentum map, the top 25% of each axis. Leader / High Performer bubbles are the app's real badge from its own page; Contender and Niche come from its position here.40 quiet apps not shown - no reviews for months.
Top 10 by Letsmetrix Score
| App | Badge | Satisfaction 0-100 | Momentum 0-100 | Letsmetrix Score geo. mean, 0-100 | Reviews total | New 30d reviews | Trend 90d rating | 8-wk reviews/wk |
|---|---|---|---|---|---|---|---|---|
| Top RatedTrendingBest SupportTop 50 | 100 | 95.9 | 95.8 | 3.7k | 128 | 0 | ||
| Top RatedTrending | 100 | 96.8 | 95.8 | 3.4k | 122 | 0 | ||
| Top RatedTrendingBest Support | 98 | 97.5 | 93.8 | 3.4k | 139 | 0 | ||
| Top RatedBest Support | 100 | 83.1 | 92.1 | 1.9k | 27 | 0.10 | ||
| LeaderTop RatedTrendingBest Support | 99.9 | 99.3 | 90.7 | 1.3k | 212 | 0 | ||
| Top RatedBest Support | 97.9 | 84.5 | 90 | 1.8k | 31 | 0 | ||
| Top RatedBest Support | 99.9 | 92.8 | 89.3 | 1.2k | 50 | 0 | ||
| Top RatedBest Support | 97.9 | 80.7 | 83.8 | 819 | 13 | 0 | ||
| Top RatedBest Support | 99.7 | 84 | 78.6 | 455 | 13 | 0 | ||
| Top Rated | 97.8 | 66.6 | 75.8 | 666 | 1 | 0 |
How the Letsmetrix Grid is scored
Satisfactionreflects review quality - ratings adjusted for confidence, so a handful of five-star reviews can't buy the top of the axis, combined with each app's recent rating trajectory.
Momentumreflects growth only. Total review volume is not part of it, and Built for Shopify appears as a ring rather than added points.
Bubble sizeshows total reviews and never feeds either axis - the best app isn't simply the biggest.
The Letsmetrix Scorefavours apps that are strong on both axes over those with a single extreme, then weights the result by how many reviews back it up - so a handful of reviews can't reach the top on rank alone.
Apps are positioned relative to others in their category, and badges are smoothed over time - they reflect a sustained position, not a single week's movement.
Learn More About Shopify Stock alerts Apps
What a merchant needs to know before choosing a Shopify stock alerts app, drawn from data on 264 apps.
Why Shopify Stores Need a Stock Alerts App
A stock alert app captures a shopper who arrives when an item is sold out. The shopper leaves an email, and the store sends a note the moment the product returns, which recovers a sale that a plain out-of-stock button would lose.
The apps pair restock alerts with pre-orders, since both answer the same empty-shelf problem. Back In Stock, Notify Me: Kbite and Notify Me! Back in Stock Alert run restock and low-stock alerts. REZ Preorder, Back In Stock, Preorder Now Presale Timesact, and Preorder, Back In Stock - STOQ add a pre-order button beside the alert.
The 264 apps hold a 4.61-star average, and 40 carry the Built for Shopify badge. Back In Stock, Notify Me: Kbite holds a 5-star rating across 3,713 reviews, which shows a restock email is a steady way to win back demand a store would otherwise lose.
Key Features to Look for in a Stock Alerts App
Start with the Built for Shopify badge. 40 of the 264 apps hold it, including Kbite, Notify Me!, and REZ Preorder. The badge marks apps that meet Shopify's bar for speed and support, so it is a sound first filter.
Check the pricing next. 259 of the 264 apps offer a free plan or a free option, and paid plans start near $0.99 per month, so a store can turn on alerts with little risk. A free tier fits this category because the value shows the first time a restock email brings a shopper back.
Match the app to the need. A store that only wants restock emails needs a focused alert tool such as Notify Me! Back in Stock Alert. A store that also wants to sell before stock lands needs a combined pre-order tool such as Preorder, Back In Stock - STOQ. Weigh the rating against the review count to judge how settled the record is.
How to Choose The Right Stock Alerts App
The right pick depends on scope. For a pure restock alert with a strong record, Back In Stock, Notify Me: Kbite pairs a 5-star rating with 3,713 reviews and holds the Built for Shopify badge. For alerts plus a pre-order button, Preorder, Back In Stock - STOQ holds a 5-star rating across 3,387 reviews.
For a store that wants both alerts and pre-orders under one Built for Shopify app, REZ Preorder, Back In Stock holds a 5-star rating across 1,245 reviews. Add the alert to a single sold-out product first, confirm the email fires on restock, then apply it across the catalog.