OngoingAI

Shopify app comparison · updated Aug 25, 2026

Back In Stock,Notify MevsOmnisend Email Marketing & SMS

Compare Back In Stock,Notify Me and Omnisend Email Marketing & SMS for Shopify using current ratings, review activity, pricing, features, and OngoingAI-observed adoption.

DEVSQUAT SOLUTIONS

Back In Stock,Notify Me: Kbite

Notify Customers with Restock Alert when items are back in stock & make out-of-stock waitlist

Rating
5.00
Reviews
3,897
Review growth · 30d
+62 · +1.6%
Pricing
Free plan available
Years on Shopify
5
Stores observed
1,091

Omnisend

Omnisend Email Marketing & SMS

Run email marketing & SMS campaigns with AI marketing tools. Collect emails with popups & sell more.

Rating
4.80
Reviews
2,955
Review growth · 30d
+3 · +0.1%
Pricing
Free to install
Years on Shopify
12
Stores observed
4,846

Our read

Ratings
Back In Stock,Notify Me higher (5.00 vs 4.80)
Review growth
Back In Stock,Notify Me faster (+1.6% vs +0.1%)
Review depth
Back In Stock,Notify Me 1.3× more reviews
Adoption
Omnisend Email Marketing & SMS larger (4,846 vs 1,091)

OngoingAI's data favors Omnisend Email Marketing & SMS on observed Shopify adoption (4,846 vs 1,091 stores).

Head-to-head

The signals, side by side.

Each row reads straight from the live App Store listing and OngoingAI’s census. The Difference column states the gap — not a buyer recommendation.

DimensionBack In Stock,Notify MeOmnisend Email Marketing & SMSDifference
Rating5.004.80Back In Stock,Notify Me +0.20
Reviews3,8972,955Back In Stock,Notify Me 1.3×
Review growth · 30d+62 · +1.6%+3 · +0.1%Back In Stock,Notify Me faster
Listed pricingFree plan availableFree to installNot directly comparable
Years on Shopify512Omnisend Email Marketing & SMS +7y
Stores observed1,0914,846Omnisend Email Marketing & SMS leads

Which fits your requirements?

Choose by what you actually need.

Choose Back In Stock,Notify Me if…

  • You need stock alerts
  • You need auto-alerts
  • You need batch send
  • A higher App Store rating is a priority

Choose Omnisend Email Marketing & SMS if…

  • You need email marketing
  • You need email campaigns
  • You need sms campaigns
  • A larger observed Shopify footprint is reassuring

Tied to observable requirements only — listed capabilities, ratings, review growth, adoption and price. It doesn’t assert usability or support quality.

Feature differences

3% of listed capabilities overlap.

These apps cover largely the same ground. The decision material is what each lists that the other doesn’t.

Back In Stock,Notify Me only

19

  • Stock alerts
  • Auto-alerts
  • Batch send
  • Back in stock
  • Multi-language
  • Email
  • SMS
  • Out of stock
  • Price drop
  • Custom alerts
  • Alert settings
  • Notification templates
  • Notification button
  • Waitlists
  • Customer demand
  • Inventory reports
  • Performance reports
  • Inventory tracking
  • Marketing - Other

Omnisend Email Marketing & SMS only

39

  • Email marketing
  • Email campaigns
  • SMS campaigns
  • Push notifications
  • Newsletters
  • Forms
  • Landing pages
  • Discounts
  • Promotions
  • Upsell emails
  • Cross-sell emails
  • Cart emails
  • Checkout emails
  • Exit intent
  • Abandoned cart
  • Browse abandonment
  • Welcome emails
  • Price drop emails
  • Back-in-stock emails
  • Win-back emails
  • Product recommendations
  • Drip campaigns
  • Subscriptions
  • Product reviews
Show 1 shared capabilities
  • Pop-ups

Observed adoption

Who actually runs each, on real stores.

The stores OngoingAI’s weekly census observes running each app, and the platform each skews toward — observed presence, not vendor-reported install totals.

Back In Stock,Notify Me

1,091

stores observed

Skews Shopify · 100%

Omnisend Email Marketing & SMS

4,846

stores observed

Skews Shopify · 84%

Scope

What this comparison measures.

What it measures

Shopify App Store ratings, review counts and 30-day review growth, listed pricing and capabilities, category data, and OngoingAI-observed storefront adoption for Back In Stock,Notify Me and Omnisend Email Marketing & SMS.

What it doesn’t

Hands-on usability, customer-support quality, deliverability, merchant sentiment from review text, or revenue impact. We draw a sharp line around what we can observe.

Methodology

Where the numbers come from.

Ratings, review counts, pricing, and categories come from the live Shopify App Store listing, refreshed daily. Review growth compares the observed snapshots across the trailing 30-day window. “Stores observed” and the platform split come from OngoingAI’s weekly storefront census — the real stores running each app, not the listing’s claimed totals. Comparison generated Aug 25, 2026.

See who’s switching — as it happens.

Track app adoption on live ecommerce stores. Find merchants running Back In Stock,Notify Me or Omnisend Email Marketing & SMS, follow stack changes, and see when a store installs, removes, or replaces an app.