Shopify apps & templates
Install apps, templates, and operating systems designed to help Shopify brands watch their stores, automate the busywork, improve customer journeys, and build storefronts with a stronger story.
Apps that help your store see, act, remember, and grow.
Our Shopify apps are built for merchants who need more than another dashboard. They help your store monitor what matters, automate the right actions, manage customer journeys, and turn daily operations into a clearer system.
Available now
Turn store signals into action with automation playbooks, team alerts, integrations, and directional impact tracking.
Starting at $29/month
Explore
Available now
Operational visibility for Shopify — daily briefings, health scores, store memory, and anomaly insights.
Starting at $29/month
Explore
In development
Turn appointments into complete customer journeys with booking, service history, follow-up, and customer memory.
Starting at $29/month
ExploreRun both apps together? View ecosystem bundles · Bundle guide
Watch with Hollow Sentinel and act with Arcanum Engine at matched tier levels — Essentials, Growth, and Commerce OS bundles cost less than subscribing to both apps separately.
| Package | Investment | If bought separately | Includes |
|---|---|---|---|
| Arcanum Essentials | $49/month | $58/month | Arcanum Engine Starter · Hollow Sentinel Starter |
| Arcanum Growth | $169/month | $207/month | Arcanum Engine Growth · Hollow Sentinel Growth · Hollow Reserve Starter |
| Arcanum Commerce OS | $479/month | $507/month | Arcanum Engine Ops · Hollow Sentinel Scale · Hollow Reserve Professional · Premium reporting |
Bundle SKUs roll out on the Shopify App Store as combined subscriptions become available. Engine and Sentinel plans remain available if bought separately anytime.
Looking for consulting? See initial audits & blueprints , custom ecommerce builds, strategic retainers or AI automation consulting.
Privacy, data processing, and merchant terms for the Shopify app: Arcanum Engine privacy & data processing