Apps for every store workflow
Extend reviews, marketing, fulfillment, invoices, bundles, sourcing, and operations without rebuilding your store.
Developer docs
Review retained app-platform contracts for approved private/sandbox flows. Public marketplace activation is frozen until the human-approved trigger.
Getting started
Register, create an app record, submit for review, and keep activation human-approved.
API reference
Review app-token APIs, OAuth install, usage metering, webhooks, and private developer endpoints.
Manifest spec
Declare app URLs, OAuth redirects, scopes, extension metadata, function metadata, and version data.
Economics
Review schema-backed pricing metadata; public marketplace pricing is not launch-approved.
Review and trust
Review checks cover manifest integrity, security, data handling, pricing, support, media, and merchant clarity.
The LetBuyy app advantage
LetBuyy covers the core store workflows. For everything specialized, there are marketplace apps.
Reviewed before merchants install
Listings are checked for app scopes, billing clarity, data handling, support paths, and merchant-facing setup.
Recommendations for real growth
Find apps by category, compatibility, install context, and the workflows merchants need next.