Premium themes and licenses
How paid Shopify themes like Kalles work: licensing, updates, ownership, and what happens to your customisations when a theme updates.
Many Shopify stores run a paid theme rather than a free one. Premium themes, whether they come from the Shopify Theme Store or from outside sellers (Kalles is one of these), each come with their own licensing and update model, and a few traps worth knowing before you buy or customize.
Where themes come from
There are two routes, and they behave differently:
| Shopify Theme Store | Third-party marketplaces | |
|---|---|---|
| Purchase | Through your Shopify admin | External site (e.g. ThemeForest or the developer's own site) |
| License | Licensed to the store it was bought for | Set by the seller's license terms |
| Updates | Offered in your admin | Not supported through your Shopify admin |
| Support | The theme's developer (Shopify for its own free themes) | The seller; Shopify doesn't vet these themes |
Themes bought outside the Shopify Theme Store, Kalles among them, are licensed on the seller's terms, and Shopify doesn't support updating them from your admin. That's the main practical difference: your admin won't tell you an update exists.
Ownership: buy it yourself
Whoever buys the theme owns the license
If an agency buys a theme on their own marketplace account, the license, the update entitlement, and the support window sit with them, not you. Purchase under your own account and share the license with us using our secure guide. It costs the same and saves an awkward conversation later.
If a theme was already bought on someone else's account, sort it out before you invest heavily in customization. For a Shopify Theme Store theme, Shopify can move a license to another store only in limited cases: both stores need the same account owner email, you must be the registered owner of both, and the original store must be closed for good. For themes bought elsewhere, check the seller's license terms, or buy a fresh license under your name.
Customizing safely
Duplicate before editing. In Online Store, open the ⋯ actions menu next to your live theme and choose Duplicate. Edit the copy.
Preview thoroughly. Check desktop and mobile, and walk through a real checkout. See the cart and checkout.
Publish when ready. Publishing makes the copy your live theme. The old theme moves to your Draft themes section with its changes intact, ready as a rollback.
Keep the previous version. Don't delete the theme you replaced until the new one has run cleanly for a week or two.
The update problem
This is the thing people get caught by. On Shopify, a Theme Store version update arrives as a new copy of the theme in your draft themes, not a patch applied to your live theme. (Shopify can also apply small automatic updates that fix bugs or security issues. Those don't change your theme's look, content, or settings.) Changes made in the theme editor are copied across. Code edits made directly to theme files are copied across only if they don't conflict with the update, so some code customisations may not carry over.
How to reduce the pain:
- Prefer changes made in the theme editor: Shopify copies those into the updated theme.
- Keep code customisations documented and minimal, and save a copy of any customized code before updating.
- Budget time for reapplying customisations when a major update lands.
- Don't update the live theme directly. Add the update to your draft themes, reapply any changes that didn't carry over, test, then publish.
Because updates are disruptive, they're usually worth doing for security fixes and Shopify platform changes, and worth scheduling deliberately otherwise.
Common questions
Can I use one theme license on two stores?
Not for a Shopify Theme Store theme. The license covers only the store it was bought for, and a theme can be used on only one store at a time. Unlicensed themes don't get support or updates, and Shopify won't let you customize or publish one until the licensing is sorted out. On Shopify Plus, development and staging stores need their own license too (Shopify suggests a Partner developer preview store instead). For themes bought elsewhere, check the seller's terms.
Do I have to update my theme?
Not every release. But updates usually bring new features, design improvements, and bug fixes, so a theme that goes years without updates misses out on them. Some new Shopify features also need a newer theme and never reach an old one. Treat major updates as planned work rather than emergencies. See planned maintenance.
Will a premium theme slow my store down?
It can. Shopify names your theme as one of the biggest factors in store speed, and says every feature you add, such as carousels, animations, or extra sections, can affect performance. Feature-heavy themes come with a lot of these. Turning off features you don't use and keeping page templates lean helps. See why speed matters.
What happens if I switch themes entirely?
Products, orders, customers, and pages are stored by Shopify, not the theme, so your data is safe. What doesn't carry over is the old theme's layout and any settings unique to it. Budget for rebuilding the look, not the content.
Do apps still work after a theme change?
Not always. Shopify warns that some apps might not be compatible with a new theme. Apps that add blocks or inject code into your theme (reviews, upsells, popups) may need setting up again. Judge.me reviews and similar widgets commonly need their placement set up again. See Shopify apps explained.
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