Part of our Section Store Alternative — the Honest Comparison.
Search for the "best Shopify section apps" and you get ranked lists — number of sections, price, star ratings. Those are worth glancing at, but they hide the one property that determines whether an app is right for your store: its architecture. Two apps with similar catalogs can behave in opposite ways the day you update your theme. This guide gives you a way to judge section apps on the things that actually change your outcome, so you can rank them yourself instead of trusting a generic list.
We are deliberately not naming a winner. The right app depends on how often you change themes, how long each section needs to last, and whether you want an ongoing app dependency. What follows is the checklist to run any candidate through.
First, sort by architecture
Every section app is one of two types, and this single distinction predicts most of its behavior.
- File-based apps copy
.liquidsection files into your theme when you add a section. The section then lives in your theme code. - App-based apps render sections from the app through a Theme App Extension, so the markup stays in the app and your theme only references it.
Before comparing anything else — price, catalog, ratings — find out which type a candidate is. It changes the meaning of every other feature.
The survival table
This is the property most "best of" lists omit, and it is the one you will feel months later.
| File-based | App-based | |
|---|---|---|
| Survives an app uninstall | Yes — the file is yours | No — rendering stops |
| Survives a theme update / swap | Not reliably — a fresh theme copy can overwrite it | Yes — the update never touches it |
| Ongoing dependency on the app | None after install | The app must stay installed |
| Effort when you update your theme | Re-add / re-check sections | None |
Neither column is the "correct" one. A file-based section is genuinely yours after install, but a theme update publishes a fresh copy of the theme's files and does not merge your additions back in — the mechanics are in does a theme update delete your customizations. An app-based section is immune to that, at the cost of needing the app installed.
A checklist for judging any section app
Run each candidate through these, in this order:
- Architecture. File-based or app-based? Everything below depends on the answer.
- Theme-update behavior. If file-based, what is the documented process for getting the section back after a theme update or swap? If app-based, confirm it renders through a Theme App Extension, not injected script.
- Uninstall behavior. What happens to live sections if you remove the app? For file-based apps, the file typically remains; for app-based apps, plan for the dependency.
- Editor experience. Do merchants configure the section in the normal Shopify theme editor, with real settings and blocks — or in a separate app dashboard? In-editor configuration is far easier to hand off.
- Performance and cleanliness. Does it add scoped CSS, or leak global styles? Does it inject render-blocking scripts? A section that ships tidy, scoped code ages better.
- Data-driven content. If a section shows product or store data, can it read metafields rather than forcing you to retype content per page?
- Real cost. Compare the plan against how many sections you will actually use and how often you change themes — not the headline section count.
If you would rather build the section yourself instead of buying a catalog, the step-by-step is in how to create a custom section — and it is subject to the same architecture trade-off, because a hand-written section file lives in your theme just like a file-based app's does.
Where SectionGuard fits
SectionGuard is an app-based option: your custom sections render from the app via a Theme App Extension rather than being copied into your theme, so a theme update or swap does not wipe them, and merchants configure them in the standard theme editor. The honest trade-off is the app-based one from the table above — the sections render while the app is installed.
Whichever app tops your own list, judge it on the checklist here rather than the ranking. If the property you care about is surviving every theme update, that is the one SectionGuard is built around — see what it does — and the fuller side-by-side is in file-based vs. app-based sections.