Do I need a custom Shopify app? How much does it cost?
When no app does what you need, your own app stops tying you to fees and features you don't use. With Devellia you ask for it by talking and test it in minutes.
With an agency or a freelancer
- A medium-complexity Shopify app costs around €9,200 ($10,195) to €23,000 ($10,000 to $25,000) with an agency.
With a general AI
- It can write the app and, with a developer account, a server and the Shopify tools connected, help you publish and install it.
- Setting up and maintaining those connections, reviewing what it does and fixing whatever breaks takes technical knowledge, time and money: a higher opportunity cost than asking someone who already has it all solved.
With Devellia
- You describe the app: "a full-screen search with filters by collection, price and availability".
- Devellia programs it, reviews it and installs it in a test store for you to try.
- You change it by talking and install it in your store when it is the way you want.
- Building the app: €15.00 – €60.00 ($17 – $66)
Estimated prices, VAT included. You pay what it uses and never more than the maximum we show you before you start.
Custom Shopify apps are in beta. See a example walkthrough.
Questions
How much does it cost with Devellia?
Building the app: €15.00 – €60.00 ($17 – $66). VAT included, and never more than the maximum we show you before you start.
Is anything published without me seeing it?
No. Devellia does it on a copy of your shop, you see it working and it's only published if you approve it. If you're not happy with something, it's undone.
Sources: Identixweb, Shopify app development costs (2026).