Mechanic

We’ve replaced several apps with just this one!
I've used Mechanic for about a year now. Their huge library of pre-built tasks made it easy to get started auto-tagging customers or orders, scheduling product publishing, sending notifications for big orders. Setup was easy.
When I needed something custom (a complex order hold and release workflow), I was easily able to learn enough Liquid to modify an existing task to achieve what I wanted. The documentation is good, and their Slack community is also super helpful.
If you've ever thought "I wish Shopify could just do X automatically," this is probably your answer.

Mechanic is our most important app for running our store - it handles all of our workflows on the backend, and helps us automate everything from sales, special events, sending orders to vendors, keeping track of preorder, backorders, inventory, and more. It's incredibly powerful and easy to learn for a developer. The documentation is also great, and there is a community on Slack that is ready to help if you run into anything complicated. The developer is also super responsive when you have questions. Overall, we couldn't be happier with Mechanic! This is the best app on Shopify hands down.

Mechanic has been an essential tool for our shop.

We’ve used it to build and manage systems that go beyond Shopify’s native functionality, including pre-ordering, a rewards points program, a referral system, and a raffle system tied to real customer activity.

What stands out most is how flexible and reliable it is. Once a task is set up, it just works, and it gives us confidence that important automations are running exactly as intended. The support team has also been responsive and helpful whenever we’ve had questions or needed approval for specific functionality.

Mechanic has played a huge role in helping us shape our shop into what we envisioned. Highly recommended.