---
title: "Theme Upgrade Buddy Shopify App Profile"
description: "When you upgrade your Shopify theme version, custom code and styles may differ between versions. This app compares your current theme with a new version and shows every difference. Works with ANY theme, not just specific vendors. Files are grouped by risk level so you know what needs attention first. Review changes in a side-by-side diff viewer, copy custom code with one click, and download a report. Make informed decisions before publishing."
canonical_url: "https://shoplist.co/shopify-apps/theme-upgrade-buddy"
markdown_url: "https://shoplist.co/shopify-apps/theme-upgrade-buddy.md"
last_updated: "2026-02-19"
entity_type: "shopify_app"
slug: "theme-upgrade-buddy"
source: "public Shopify app profile allowlist"
---

# Theme Upgrade Buddy Shopify App Profile

> When you upgrade your Shopify theme version, custom code and styles may differ between versions. This app compares your current theme with a new version and shows every difference. Works with ANY theme, not just specific vendors. Files are grouped by risk level so you know what needs attention first. Review changes in a side-by-side diff viewer, copy custom code with one click, and download a report. Make informed decisions before publishing.

## Quick answer
Theme Upgrade Buddy has 0 detected stores in Shoplist. This Markdown profile displays 0 public brand examples; it is not a complete customer list.

## Key facts
- Name: Theme Upgrade Buddy
- Monitoring status: Storefront detection limited
- Developer: HASAN ARMSTRONG LLC
- Developer profile: https://shoplist.co/app-developers/hasan-armstrong-llc
- Shopify App Store URL: https://apps.shopify.com/theme-upgrade-analyzer
- Launch date: January 1, 2026
- Shoplist category: Product Reviews & UGC

## Pricing summary
Free

Shoplist has not yet found reliable public storefront evidence connecting a Shopify store to this app. This does not mean the app has no users. Some apps are new, admin-only, server-side, theme-independent, or otherwise difficult to detect from public storefront signals.


## App Signals
As of November 5, 2026:

- Stores running it: 0, 0.0% of the stores Shoplist tracks
- Store movement, last 28 days: +0 new stores, +0 returning, −0 removed, net 0 (estimated)
- Primary App Store category: Storefronts - Other, #120 (14-day median position)
- Listing reviews: 0

## Public callouts
- Compare any two themes and instantly see every difference between them
- Side-by-side code viewer highlights exactly what changed in each file
- Files sorted by risk level so you tackle critical changes first
- Download a full report to track progress and share with your team
- One-click copy lets you move custom code to your new theme quickly
## Shopify App Store categories
- Storefronts - Other

## Data note
Profile updated: February 19, 2026. This is the profile revision date, not a guarantee that every store was checked on that date.
Public snapshot built: 2026-11-05 16:38:28.384762\+00
Detection metrics refreshed: 2026-11-05 10:00:00.259874\+00
Public app evidence date: 2026-02-19 18:39:13.55444\+00
This generated Markdown profile intentionally exposes only public, stable app-profile fields and a small public app-stack sample from Shoplist. It excludes private contact data, people data, internal scores, crawl provenance, full datasets, and unstable operational fields.

## Related links
- [HTML app profile](https://shoplist.co/shopify-apps/theme-upgrade-buddy)
- [Shopify apps directory](https://shoplist.co/shopify-apps)
- [Shoplist data methodology](https://shoplist.co/data-methodology.md)