Built for Shopify is a status that Shopify itself awards to apps that pass its review for performance, design and integration with the Shopify admin and storefront. For a merchant, the badge is a quick, independent sign that an app has been checked against Shopify’s own standards, not just the developer’s claims.
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Shopify calls it the highest level of recognition an app can reach on the Shopify App Store. Cartsaver is a Built for Shopify app by Xtnd that confirms cash on delivery orders on WhatsApp or SMS before you ship, then uses the same WhatsApp conversation for order updates, abandoned cart recovery, one-tap cross-sells, reviews and campaigns, through the official WhatsApp Business API. This page explains what the badge actually requires, what it does not promise, and how Cartsaver is built to meet it.
Who awards the Built for Shopify badge?
Shopify does, and developers cannot buy it or award it to themselves. An app must meet Shopify’s prerequisite criteria, then pass a review by the Shopify app review team. Apps with the status are reviewed every year, and an app that stops meeting the criteria can lose it.
According to Shopify’s Built for Shopify overview, apps with the status are reviewed every year to confirm they still meet the standards. An app that falls short is told by Shopify and has 60 days to fix it, and the status can be lost if the app stops meeting the criteria.
What does Shopify require for Built for Shopify?
Shopify checks six main groups: eligibility (installs, reviews and rating), admin performance, storefront performance, checkout performance, integration with the Shopify admin and theme, and design. In short, the app must be used by real merchants, fast, embedded in the admin, built on theme app extensions instead of theme edits, and familiar to use.
Shopify publishes the full list in its Built for Shopify requirements. The main groups, as published at the time of writing:
| Area | What Shopify checks | Why it matters to a COD store |
|---|---|---|
| Eligibility | At least 50 net installs from active shops on paid plans, at least 5 reviews, a minimum recent app rating, and no outstanding Partner Program infractions | The app is already used and rated by real merchants |
| Admin performance | At the 75th percentile of page loads: Largest Contentful Paint of 2.5 seconds or less, Cumulative Layout Shift of 0.1 or less, and Interaction to Next Paint of 200 milliseconds or less | The app’s screens load and respond quickly while you work on orders |
| Storefront performance | The app can lower your store’s Lighthouse performance score by no more than 10 points | Adding the app does not make your store noticeably slower for shoppers |
| Checkout performance | For apps called during checkout: fast responses (p95 of 500 ms or less) and a failure rate of 0.1% or less | Checkout is not held up by the app |
| Integration | Embedded in the Shopify admin with the latest App Bridge, main tasks done inside the admin, theme app extensions for storefront elements, and no editing of theme files | Nothing is pasted into your theme code, and uninstalling leaves your theme clean |
| Design | Looks and works like the Shopify admin, works on mobile without sideways scrolling, and uses Shopify’s navigation and save bar | The app feels familiar and is usable from your phone |
Shopify updates these requirements over time, so check its page for the current wording.
What does the Built for Shopify badge tell you?
It tells you an app is fast, safe for your theme and built the way Shopify recommends, and Shopify gives such apps a higher place in App Store search. It does not tell you whether the app fits your business, how many fake orders it stops, or whether it uses the official WhatsApp API.
The badge tells you the app is fast, safe for your theme and built the way Shopify recommends. Shopify also gives these apps a badge on their App Store card, a filter for Built for Shopify apps, and a higher place in App Store search results.
It does not tell you whether an app fits your business. It says nothing about how many fake orders an app will stop in your market, whether its WhatsApp messages come through the official API, or how quickly its support answers. Check those yourself, using the questions further down.
How Cartsaver uses Shopify’s own building blocks
Every part of Cartsaver that touches your store or checkout uses a Shopify extension point rather than code pasted into your theme:
- Embedded admin. The app runs inside your Shopify admin with App Bridge, and you can use it in English, Arabic, Urdu, Hindi or Indonesian.
- Theme app extension. The Fast Checkout one-page COD form, the pre-checkout pop-up and the Order Reviews block are added through Shopify’s theme editor and switched on or off there. Cartsaver does not write to your theme files.
- Checkout UI extension. The confirmation block for WhatsApp order confirmation sits on the thank-you and order status pages, placed with Shopify’s checkout editor.
- Shopify Function. A payment customization can show cash on delivery only after a customer is verified.
- Admin order block. On each Shopify order page you can see the verification status, mark the order verified or not, or open a WhatsApp chat with the customer.
- Shopify Flow triggers. “Customer confirmed order via WhatsApp”, “Customer requested order cancellation” and “Order verification timeout” let you automate your own next steps.
- Standard order data. Verification shows up as Shopify risk levels and order tags, so your other apps and couriers see it too.
For more on who builds Cartsaver and how it handles store data, see Is Cartsaver legit? in the Cartsaver docs.
What merchants report
Cartsaver is rated 5.0 from 63 reviews on the Shopify App Store (as of 2026-11-02) and is used by more than 1,000 stores. One Egyptian merchant, Sofico, wrote in their February 2026 review that their “unsuccessful rate decreased from 30% to 7%” after they started confirming orders with Cartsaver. That is one store’s reported result, not a promise; your numbers depend on your products, market and settings. See Cartsaver on the Shopify App Store and start on the Free plan, no credit card needed.
Questions to ask any COD verification app
- Does it have the Built for Shopify badge? Look for it on the App Store listing.
- Does it edit my theme code? It should use theme app extensions instead.
- Does it send WhatsApp through the official WhatsApp Business API? Unofficial tools can put your number at risk. Read official API vs unofficial workarounds.
- What happens to orders nobody confirms? You want a clear choice between flagging and cancelling, with a wait time you set.
- Can I see the result in Shopify? Risk levels and tags beat a separate dashboard.
- What does it cost at my order volume? Compare message allowances on the pricing table.
A worked example
A store owner in Lahore is choosing between three COD apps. One asks them to paste a script into the theme file. Another has no badge and sends WhatsApp messages from a phone linked to WhatsApp Web. The third has the Built for Shopify badge, adds its blocks through the theme and checkout editors, and shows verification as order tags. They install the third, place a test order, and check that their store’s speed score has not dropped. If they uninstall later, the theme blocks disappear with the app.
Frequently asked questions
Is Built for Shopify the same as being on the Shopify App Store?
No. Every App Store app passes Shopify’s basic app review. Built for Shopify is an extra status with stricter requirements for performance, design and integration, and only some apps have it.
Can an app lose the Built for Shopify badge?
Yes. Shopify reviews apps with the status every year, gives an app 60 days to fix failures, and can remove the status if the app stops meeting the criteria.
Does Built for Shopify mean the app will not slow down my store?
Shopify’s requirement is that the app lowers your store’s Lighthouse performance score by no more than 10 points. That is a limit, not zero impact, so test your own store after installing any app.
Will uninstalling Cartsaver leave code in my theme?
No. Cartsaver’s storefront parts are theme app extensions, which Shopify removes when the app is uninstalled. Cartsaver does not edit your theme files.
Does Cartsaver have a free plan?
Yes. The Free plan costs $0 and includes 10 WhatsApp messages a month. Paid plans start at $9.99 a month. See what WhatsApp Order Verification includes.