You can probably find most of the old app code in your theme.liquid layout file.
Other common areas you might find extra code:
- cart.liquid
- collection.liquid
- product.liquid
Those are the main template files, so you'll want to check there then trace the included snippets as well for a thorough check.
If you'd like a professional to handle it, we have an App Analysis service here: speedboostr.com/services that addresses this.
We see this quite often, with leftover app code. It's because after deleting an app from your Shopify store, access is removed so the app cannot clean up after itself.
Founder of
Speed Boostr (Shopify optimization experts, theme customization, custom app development).
Creator of
Shopify Analyzer (first performance analysis tool for Shopify sites, free for the Shopify community).
Creator of
Order Automator (auto tag orders and customers + auto fulfillment + more automations).
More apps:
Theme Scientist (A/B testing),
Tip Jar (add a tip button),
File Optimizer (optimize CSS, JS, Liquid).
