This is an info Alert.
x402 Logo
  • Product
    • Become Agent-Ready
      • Merchants
        Agentic Commerce — list your store across ChatGPT, Gemini, Claude & Perplexity
      • Publishers
        Monetize your content when AI agents read, cite, or train on it
      • SaaS Companies
        Treat AI agents as first-class customers with agent-priced checkout
    • Monetize
      • Monetize MCP Server
        Charge per call on any MCP server in 2 minutes
      • Monetize AI Agents
        Turn n8n, Zapier, Activepieces workflows into revenue
      • Agent Feed
        Pay-per-query access to licensed publisher content for your agents
  • Resources
    • xpay Ecosystem
      • xpay✦ Tools
        1,000+ pay-per-use tools for your AI agents
      • Agent-Ready SaaS Index
        25,481 SaaS scored on agent-buyability
      • SaaS Pricing Database
        Pricing pages indexed across 1,000+ categories
      • Shopify Apps Directory
        Every Shopify app, with its full review history
      • GitHub
        Open source repositories
    • Agent Building
      • Agent Frameworks
        AI frameworks for building multi-agent systems
      • x402 Integration
        AI frameworks with x402 payment integration
      • Networks
        Blockchain networks supporting x402
    • Company
      • About xpay✦
        Our mission, products, and protocols
      • Blog
        Latest insights and updates
      • Docs
        Complete xpay documentation
  • Pricing
  • Blog
  • Docs
Get Started
  1. xpay

  2. Shopify apps

  3. Marketing - Other

  4. Back In Stock,Notify Me: Kbite

Back In Stock,Notify Me: Kbite

by DEVSQUAT SOLUTIONS

5.0

(3,781 reviews)

80/100 · Well supportedBuilt for ShopifyFree plan available. Free trial available.
Best suited for stores looking to recapture sales from out-of-stock products through back-in-stock notifications.

Notify Customers with Restock Alert when items are back in stock & make out-of-stock waitlist Krtbite is an all-in-one marketing tool to help you recover lost sales. Don't miss out on lost sales with Back In Stock Alerts, Abandoned carts, and price drop notifications through Emails, and SMS Alerts. Shows the Notify Me!! button on out of stock products and automatically sends notifications when they get in stock. Creates the out-of-stock & price drop waitlists to see products in demand. Fully customize all notifications, grow your mailing list, and much more !! Krtbite is an all-in-one marketing tool to help you recover lost sales. Don't miss out on lost sales with Back In Stock Alerts, Abandoned carts, and price drop notifications through Emails, and SMS Alerts. Shows the Notify Me!! button on out of stock products and automatically sends notifications when they get in stock. Creates the out-of-stock & price drop waitlists to see products in demand. Fully customize all notifications, grow your mailing list, and much more !! more Restock Alerts: Send Automatic back in stock email and SMS alerts Price Drop Alerts: Send price drop alerts to customers when product is on-sale Out of Stock Waitlist: Product analytic to know most in-demand products. Grow Mailing List: Sync to Customer list automatically for email marketing. Fully Customise "Notify me when available" button and Notification templates

Copy from the Shopify App Store listing, unedited.
View on ShopifyCompare the plansSee the scorecard
Who it’s for
Marketing - Other
What it moves
Top line

conversion rate and average order value

What it costs
From $5/mo

free plan available · 4 tiers

How it’s supported
80/100

Well supported · from 3,745 reviews

What it does

Restock Alerts: Send Automatic back in stock email and SMS alerts

Price Drop Alerts: Send price drop alerts to customers when product is on-sale

Out of Stock Waitlist: Product analytic to know most in-demand products.

Grow Mailing List: Sync to Customer list automatically for email marketing.

Fully Customise "Notify me when available" button and Notification templates

Plan fit
What each step up actually buys you

This developer's plans are separated by features, not by how big your store is — so there is no volume that picks a tier for you. Here is what each one adds over the one below it.

Free
Free
You start with

Unlimited Subscribers

30 Emails/mo

Back In Stock Notifications

Price Drop Notifications

Unlimited Registrations

Button + Form Customizations

Basic
$5/month
Adds

Everything in Free plan plus

500 Email Notifications/mo

Sync to Mailing List

Multi-language

Multi-location

No Branding

Starter
$9/month
Adds

Everything in the Basic plan plus

2500 Email Notifications/mo

Batch delivery

Pro
$19/month
Adds

Everything in Starter plan plus

5000 Email Notifications/mo

Custom Integrations

Listed as “Free plan available. Free trial available.”. Plan contents change — confirm on the listing before you install.
Pricing
Free plan available. Free trial available.
Free

Free

Free
Unlimited Subscribers
30 Emails/mo
Back In Stock Notifications
Price Drop Notifications
Unlimited Registrations
Button + Form Customizations
Min. Inventory Limit
Basic

$5/month

Lowest paid plan
Everything in Free plan plus
500 Email Notifications/mo
Sync to Mailing List
Multi-language
Multi-location
No Branding
Min. Inventory Limit
Starter

$9/month

Everything in the Basic plan plus
2500 Email Notifications/mo
Multi-language
Batch delivery
No Branding
Min. Inventory Limit
Pro

$19/month

Everything in Starter plan plus
5000 Email Notifications/mo
Multi-language
Custom Integrations
No Branding
Min. Inventory Limit
Plans as listed on the Shopify App Store. Always confirm current pricing before installing.

80

/ 100
Well supported
high confidence

Scored on 3,745 merchant reviews we hold for Back In Stock,Notify Me: Kbite, across five checks. Every figure is computed from those reviews — expand any row to see the counts behind it.





Computed from the 3,745 reviews we hold, with 12-month windows measured to 2026-08. This scores the public review record — it is not a review of the software itself, and a low score often means we hold little evidence rather than poor evidence.
Review history
2021–2026 · 3,745 reviews read
Reviews per year
2021123 reviews
2022310 reviews
2023396 reviews
2024932 reviews
20251231 reviews
2026753 reviews
What merchants say

5.0

3,781 reviews
5★99%
4★1%
3★0%
2★0%
1★0%
Developer replies
1%
of reviews get an answer
Reviewed at 12m+
12%
had used it a year when they wrote
From 3,745 reviews read. Typical reviewer had used the app for 17 days. Most merchants review in their first month, so this reflects when people write — not how long they stay.
Recent merchant reviews

The newest 8 of 3,781. Open one to read it in full, with the developer's reply where there is one.

Good for setting up restock alerts. Easy to pull reports and filter spreadsheet yourself once you know how to access. Quick responsive and helpful support.

Sam is an absolute gem, genuinely great customer service from the app developer themselves (not a whiff of ai thankfully). They answered every question politely and provided helpful content. They even supported me with some extra elements from 'behind the scenes' too. The app itself is straightforward to install and does exactly what it promises. If you're a business looking for a back-in-stock notification tool with a human being behind it, look no further. Highly recommend!

Very easy app with lots of options. I lost so many sales before I used Back in Stock notifications, Now I know who opted in and what they will wait for, which helps when I have reorder without spending too much $ guessing. Excellent customer service, fast and very helpful. Really like this app.

This app has been so great for us to be able to capture our audience when items are sold out. And have instant sales when we are back in stock. Very easy to install and the support team is super helpful if you have any questions.

After getting completely fed up with the lack of support from other major apps, finding Back in Stock / Kbite has been a breath of fresh air. As a brand designer, I really appreciate simple and to the point UX, but the customer service here is what truly shines. Sam (the founder/developer) reached out instantly during the setup to help me configure the widget. It is incredibly refreshing to have a real human, let alone the creator himself helping you out on the other end. So far the experience have been very good and will be using it for future projects. 10/10 highly recommend!

This app works flawlessly out of the box, but what truly sets it apart is the support team. Sam stepped in immediately to help me customize our custom CSS layout and email button styles. Total game-changer for our store efficiency and customer experience. Highly recommend!

Easiest install ever. Sam was live on the chat when I installed the app asking if we needed any help. I highly recommend this product if you are looking for notifying customers of items that go back in stock or notifying customers on price drops. Other similar apps I tried did not work correctly immediately after install like this one did.

The app is simple and does exactly what it needs to without unnecessary complexity. It works well for my online store. The support team was excellent. They replied within a few hours and helped me relocate the "Notify Me" button under the "Add to Cart (Sold Out)" button without any issues. Highly recommended!

Back In Stock,Notify Me: Kbite FAQ

Answered from this app's own listing and its full review record.

Best suited for stores looking to recapture sales from out-of-stock products through back-in-stock notifications.

There is a free plan, paid plans start at $5/month, and run to $19/month across 4 published tiers. Prices are as listed on the Shopify App Store and can change — confirm before installing.

Back In Stock,Notify Me: Kbite's plans are separated by features rather than by store size — none of the tiers is capped on a volume you could state up front. Compare what each step adds over the one below it rather than trying to size yourself into a tier.

On our scorecard Back In Stock,Notify Me: Kbite rates 80 out of 100 — well supported — read from 3,745 merchant reviews. The developer has published replies to 29 of 3,745 reviews. The score reflects what the review record shows, nothing more.

3,781 merchants have reviewed Back In Stock,Notify Me: Kbite, averaging 5.0 out of 5. We hold the review history from 2021 to 2026, which is what the year-by-year chart on this page is built from.

Quick facts
At a glance
Merchant rating

5.0 / 5 · 3,781 reviews


Rating, last 12 months

4.99 from 1,214 reviews


New reviews, last 12 months

1,214 (was 1,081)


Developer replies

29 of 3,745 reviews


Typical reviewer had used it

17 days


Pricing

Free plan available. Free trial available.


On the App Store since

May 20, 2021


Review history held

2021 – 2026

Integrates with
Checkout
Shopify Admin
Pagefly
Shopgun

Categories
Marketing - OtherStock alerts
Will AI shoppers find this store?

Apps like this one convert the traffic you already have. Getting recommended by ChatGPT and Perplexity is a separate problem.

Run a free readiness check
Alternatives
Instead of Back In Stock,Notify Me: Kbite

Same categories, by review volume.

Refersion Affiliate Marketing
4.8460 reviews

Outfy ‑ Social Media Auto Post
4.8459 reviews

Revie: Reviews & Marketing
4.8289 reviews

S Loyalty and Rewards Program
4.5214 reviews

Xyla AI Social Media Autopilot
4.7187 reviews

Catalog Maker by EasyCatalog
4.4185 reviews
x402 Logo

The agent-readiness stack for the AI shopping era — helping merchants, publishers and SaaS companies get discovered, cited and transacted with by ChatGPT, Perplexity, Claude, Gemini and the custom shopping agents underneath them.

CompanyAgentically Inc. (d/b/a xpay✦)1875 Mission St, Ste 103San Francisco, CA 94103, United Stateslegal@xpay.sh · privacy@xpay.sh
or ask your AI app
Company
About xpayAgency PartnersGitHubDiscordllms.txt
DevelopersDocumentationAPI ReferenceSDKs & LibrariesQuickstart GuideOpenAPI Spec
Stay Updated
Occasional product updates and agent-readiness playbooks from xpay (Agentically Inc.) — typically a couple of emails a month. Double opt-in: we email you a link to confirm before sending anything, and every email has one-click unsubscribe.
Social
  • For Publishers
    • News
    • Finance
    • Dev / Tech
    • Travel
    • View all verticals
  • Agent Feed
    • AI Search Engines
    • RAG Builders
    • Browser Agents
    • Vertical Research
    • Browse full catalog
  • Agent-Ready Index
    • SaaS Pricing Database
    • Agent-Ready SaaS Index
    • Verified band
    • AI & ML
    • Sales & CRM
  • Products
    • Pricing Widget
    • Monetize MCP Server
    • Paywall
    • Smart Proxy
    • Monetize AI Agents
    • xpay x402 Facilitator
  • Agentic Economy
    • Timeline
    • Resources
    • Manifesto
    • Stack
  • Agentic Commerce
    • Get listed
    • ChatGPT Ads
    • How ChatGPT Ads work
    • ChatGPT Ads · Apparel
    • ChatGPT Ads · Health & Beauty
    • xpay Listings · Amazon + Google
    • Pricing
    • Free audit
    • Shopify
    • WooCommerce
    • Apparel & Accessories
    • Health & Beauty
    • Overview
  • Commerce Index
    • Shopify apps directory
    • Agentic Commerce Ready Index
    • Methodology
    • Pet brands · WooCommerce
    • Pet brands · Shopify
  • Marketplace
    • 🛍️ xpay.deals — agentic storefront for deals
  • Protocols
    • Overview
    • x402
    • MPP
    • UCP
    • ACP
    • AP2
    • TAP
    • A2A
  • Agent Frameworks
    • Overview
    • LangChain
    • CrewAI
    • Claude MCP
    • AutoGPT
    • LangChain vs Mastra
    • LangGraph vs Pydantic AI
  • Company
    • About xpay
    • Blog
    • Docs
    • GitHub
  • Free prompts
    • Ecommerce prompts
    • Email marketing prompts
    • Product description prompts
    • Facebook ad prompts
    • Skincare prompts
    • Supplement prompts
    • Wine prompts
    • Electronics prompts

© 2025 Agentically Inc. All rights reserved.
Privacy PolicyTerms of UseAcceptable Use Policy