Keystone

1 Kingdom St, Paddington Central, London, ENG, W26BD, GB

Keystone builds 3 Shopify apps, rated 4.8 on average. Key Product Options, Variants leads the portfolio on 115 detected stores.

Public apps

161

Per-app detection total

4.8

Average rating, 3 rated apps

Adds each app’s detected stores, so a store running two of these apps counts twice. As of Nov 1, 2026.

Apps by Keystone

Open an app to inspect its available merchant evidence, reviews, pricing, and listing history.

4.840 reviewsFree plan

115

detected stores

Custom products - Other

5.06 reviewsFree plan

detected stores

Loyalty & Referrals

4.74 reviews

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Store count not available

Search & SEO

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