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Best Shopify Stock Alerts Apps

The 30 strongest of the 294 stock alerts apps in our index of the Shopify App Store category chart, scored on four things we measure ourselves: how many stores use it, how well those stores rate it, whether it is gaining or losing ground, and what it costs. No editor picks the order, and nobody can pay to move up it.

Apps in category
294
Top score
95.2
With a free plan
27 of 30
Rank tracked for
10 days

The short answer

Five ways to be the right stock alerts app. Each award is the highest scorer that fits it, and no app can win twice.

Best overall

The highest total score in the category: 151 reviews at 5.0, and 91.6 out of 100 on adoption against every other stock alerts app.

Best free option

The strongest app here with no paid tier at all — 15 reviews, rated 5.0, and $0 whatever your volume.

Best paid app

No free tier, so the price component holds it down the ranked list — but 209 merchants rate it 5.0, and it starts at $5/month.

Fastest growing

Gained 15 reviews in the last 10 days and climbed 3 places in the category chart.

Most established

4,157 reviews — more than anything else Shopify files under stock alerts — and still rated 5.0.

The full ranking

Sorted by BestAppify Score. The four bars under each app are its percentile within this category on each component — a 90 on adoption means only a tenth of stock alerts apps have more reviews.

  1. 1
    Back in stock Restock Preorder

    Send automatic back in stock emails when products or variants are restocked. Easy to customize, supports all themes, and helps recover lost sales.

    5(151)Free · then $5.99Category rank 25+5
    95.2
    score
    Adoption
    92
    Satisfaction
    95
    Momentum
    99
    Price
    100
    View on the Shopify App Store
  2. 2
    Back In Stock,Notify Me: Kbite

    Recover lost sales with automated back in stock alerts via email, SMS, and push. Keep customers engaged and drive more restock conversions.

    5(4,157)Free · then $5Category rank 1 0
    95
    score
    Adoption
    100
    Satisfaction
    100
    Momentum
    75
    Price
    100
    View on the Shopify App Store
  3. 3
    Preorder Now Presale Timesact

    Timesact Shopify app makes it easy to automate preorders, restock alerts, & sell pre-sale products. Never miss sales with restock & back in stock notifications.

    5(2,072)Free · then $5Category rank 4 0
    94.1
    score
    Adoption
    99
    Satisfaction
    98
    Momentum
    74
    Price
    100
    View on the Shopify App Store
  4. 4
    Notify Me! Back in Stock Alert

    Download the official Notify Me!™ app on Shopify. Shopify stores love our "Pre-order" and "notify me when available", "Wishlist" and "Only X Remaining" button

    4.9(3,826)Free · then $9.9Category rank 2 0
    92.2
    score
    Adoption
    100
    Satisfaction
    91
    Momentum
    75
    Price
    100
    View on the Shopify App Store
  5. 5
    Hulk AI Wishlist & Favorites

    Save time with one-click setup customizable wishlist page to share wishlists on socials, gift with guest lists, send email reminders, and import wishlist data.

    4.9(140)Free · then $9.9Category rank 28+3
    91.3
    score
    Adoption
    91
    Satisfaction
    84
    Momentum
    98
    Price
    100
    View on the Shopify App Store
  6. 6
    Early Bird: Preorder & Restock

    Capture waitlist interest and secure pre-sales with pre-order campaigns. Partial pay, custom discounts, smart-send back in stock alerts. Zero commission fees.

    4.9(73)Free · then $19Category rank 38 0
    83.4
    score
    Adoption
    87
    Satisfaction
    78
    Momentum
    72
    Price
    100
    View on the Shopify App Store
  7. 7
    Preorder, Back In Stock ‑ STOQ

    Sell pre orders & manage backorders with the #1 Shopify Pre-order App. Automate back in stock alerts from restocks & increase conversions. Start for free today.

    5(3,542)Free · then $10Category rank 3 0
    82.6
    score
    Adoption
    99
    Satisfaction
    99
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  8. 8
    Preorder, Back In Stock REZ

    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

    5(1,445)Free · then $4.99Category rank 7 0
    81.6
    score
    Adoption
    98
    Satisfaction
    98
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  9. 9
    Essent Preorder Back in Stock

    Accept preorders with partial payments or deposits. Send back in stock email alerts when sold out products restock. Notify Me waitlist and 24/7 support.

    5(1,212)Free · then $5Category rank 8 0
    81.3
    score
    Adoption
    98
    Satisfaction
    97
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  10. 10
    Preorder, Back in stock Duck

    Recover lost sales from your sold out pages with Pre-orders and back in stock alerts. Setup only takes a few minutes.

    5(480)Free · then $9Category rank 14 0
    80.3
    score
    Adoption
    96
    Satisfaction
    96
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  11. 11
    PreOrder Globo | Back in Stock

    Easy enable pre-order button for out of stock product or any product. Automatic appy discount and custom note on pre-orders

    4.9(1,848)Free · then $9.9Category rank 5 0
    79.5
    score
    Adoption
    99
    Satisfaction
    90
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  12. 12
    Amp Back in Stock & Preorder +

    Turn out-of-stock moments into waitlists. Auto-send restock alerts via email, SMS & push. Preorders, wishlists & demand insights. Trusted since 2011.

    4.9(841)Free · then $19Category rank 9 0
    78.8
    score
    Adoption
    97
    Satisfaction
    89
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  13. 13
    Ordersify: Restocked Alerts

    With Ordersify, you can easily send restock notifications to customers. We also send automated alerts and email reports about low-stock and out-of-...

    4.9(664)Free · then $9.99Category rank 10 0
    78.5
    score
    Adoption
    97
    Satisfaction
    88
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  14. 14
    XFlow Back in Stock Alert

    Automate back-in-stock alerts with unlimited emails and smart workflows. Recover lost sales, segment customers, and track performance with ease.

    5(48)Free · then $9Category rank 45 0
    75.6
    score
    Adoption
    85
    Satisfaction
    93
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  15. 15
    Sales CountUp

    Represent your brand and showcase your impact with Sales Countup. You can easily demonstrate how much you donate or spend on charity with highly cu...

    5(43)Free · then $4.95Category rank 47 0
    75.1
    score
    Adoption
    84
    Satisfaction
    92
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  16. 16
    Hey!Scarcity Low Stock Counter

    Display the remaining inventory/ stock level quantity on product pages to create a sense of urgency and scarcity. Left in stock | low in stock | stock level

    5(141)Free · then $5.99Category rank 27-2
    75
    score
    Adoption
    91
    Satisfaction
    94
    Momentum
    0
    Price
    100
    View on the Shopify App Store
  17. 17
    Back In Stock | Restock Alerts

    Add a Notify Me button and send Back in Stock alerts via Email, SMS & WhatsApp. Build waitlists, customize templates, track demand, and recover lost sales.

    5(31)Free · then $9.99Category rank 53 0
    74
    score
    Adoption
    82
    Satisfaction
    92
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  18. 18
    Prime Product Badges Stickers

    Automated product badges, stickers, and labels Shopify App. Highlight features, and automate promotions. Out of Stock, BFCM, Trending, Pre-Orders, Sale & more.

    5(209)$5/moCategory rank 20 0
    73.6
    score
    Adoption
    93
    Satisfaction
    95
    Momentum
    15
    Price
    62
    View on the Shopify App Store
  19. 19
    PreOrder Now & Pre order | PQ

    Simplify pre-order management with Prequik Preorder app. Automate inventory tracking, schedule releases, and notify customers when products become available.

    4.9(507)$7.99/moCategory rank 12 0
    71.7
    score
    Adoption
    96
    Satisfaction
    88
    Momentum
    15
    Price
    58
    View on the Shopify App Store
  20. 20
    Doran Back in Stock | Preorder

    The app is designed for merchants who want to maximize sales opportunities by recovering lost sales through restock alerts. This app simplifies inv...

    4.9(138)Free · then $9Category rank 29-3
    71.4
    score
    Adoption
    90
    Satisfaction
    83
    Momentum
    0
    Price
    100
    View on the Shopify App Store
  21. 21
    Out Of Stock Alert Restock Lab

    Automate inventory management with Out Of Stock Labs. Get configurable email, Slack, & WhatsApp alerts to stay in stock and boost sales. Try it now!

    5(15)FreeCategory rank 66 0
    70.8
    score
    Adoption
    77
    Satisfaction
    86
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  22. 22
    ET Scarcity Low Stock Counter

    Ecom Low Stock Countdown increases customer intention of buying the product by creating the fear of losing it. The app features a low stock counter...

    5(14)Free · then $3.95Category rank 68 0
    70.1
    score
    Adoption
    76
    Satisfaction
    85
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  23. 23
    Stockbot Low Stock Alert

    A single app to help you stay on top of your Low Stock and Inventory forecasting at a reasonable cost. Set low stock alerts at the store, product...

    4.9(32)Free · then $9Category rank 52 0
    69.2
    score
    Adoption
    82
    Satisfaction
    74
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  24. 24
    Back In Stock ︱Restock Rooster

    Restock Rooster App adds a Notify Me button to out of stock products on your Shopify store, and sends back in stock alerts automatically when a restock happens.

    4.7(24)Free · then $4.99Category rank 56+1
    69.2
    score
    Adoption
    81
    Satisfaction
    23
    Momentum
    96
    Price
    100
    View on the Shopify App Store
  25. 25
    EZ Preorder & Back In Stock

    Use our preorder or notify me button to capture demand regardless of stock levels! Use preorder now to launch products before inventory arrives, or...

    4.5(144)Free · then $10Category rank 26+1
    68.8
    score
    Adoption
    91
    Satisfaction
    9
    Momentum
    97
    Price
    100
    View on the Shopify App Store
  26. 26
    syncX Preorder & Back In Stock

    Stop losing sales when products are out of stock or prices seem high. Learn how preorders, back-in-stock alerts, and partial payments capture revenue.

    4.9(31)Free · then $5.99Category rank 54 0
    68.7
    score
    Adoption
    82
    Satisfaction
    74
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  27. 27
    Bat Preorders | Preorder Now

    PreOrder Bat is a simple, powerful solution to manage pre-orders and product availability on your e-commerce store. Whether you're launching new pr...

    4.9(262)—Category rank 17 0
    68.1
    score
    Adoption
    94
    Satisfaction
    87
    Momentum
    15
    Price
    40
    View on the Shopify App Store
  28. 28
    Back In Stock ‑ Notify Hero

    Recover lost sales with automatic back in stock email alerts. Add “Notify Me” button, capture waitlists, increase conversions & revenue with Notify Hero.

    5(12)Free · then $4.99Category rank 73 0
    68
    score
    Adoption
    75
    Satisfaction
    79
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  29. 29
    OnVoard Back In Stock

    Allow customers to subscribe for back in stock notifications and automatically notifies them when products are restocked. Missed back-in-stock em...

    5(12)Free · then $14.9Category rank 72 0
    68
    score
    Adoption
    75
    Satisfaction
    79
    Momentum
    15
    Price
    100
    View on the Shopify App Store
  30. 30
    RN: PreOrder & Back in Stock

    Add pre-order now & notify me when available button on product pages on your Shopify store. Send back in stock alert via email, SMS, WhatsApp notifications

    5(11)Free · then $8.99Category rank 74 0
    67.2
    score
    Adoption
    74
    Satisfaction
    78
    Momentum
    15
    Price
    100
    View on the Shopify App Store

How the score is calculated

The BestAppify Score is four measurements, each turned into a percentile against the other stock alerts apps and then weighted. It is computed from our own crawl of the App Store — no human ranks these, and no app can pay to move.

Adoption35%
Review count on a log scale. It is the only public proxy for how many stores actually run the app, and the log stops a single 43,000-review incumbent from flattening everything beneath it.
Satisfaction30%
The star rating, shrunk toward the category average in proportion to how few reviews back it. Half of all rated Shopify apps show exactly 5.0 off a median of four reviews, so the raw number separates almost nothing.
Momentum20%
Reviews gained and category-rank movement over the last 52 days, from our own daily snapshots of the App Store charts. An app losing ground scores badly here even if its lifetime totals look strong.
Price15%
A plan a live store can stay on for $0 takes the top of this component; paid apps are ranked cheapest-first across a narrower band, so price nudges the order without overruling thousands of merchants.

What it cannot see: whether the app is any good at the job. Nothing here reads the feature list or installs the app, so treat the score as a shortlist, not a verdict — it tells you which three or four of these 30 are worth an hour of your evening, and no more than that. Apps whose pricing the crawler could not read score below the paid range on price rather than in the middle of it, deliberately: a price you cannot check before installing is a cost too. Momentum is measured over the last 10 days — the run of days on which our coverage of this category has been complete enough for one day's rank to mean the same thing as another's. It is deliberately shorter for categories we finished crawling recently: a rank of 4th out of the 28 apps we had in July is not comparable to 6th out of 436 today, and treating it as though it were would have scored every established app in some categories as falling.

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