---
title: "Theme Drift: Compare & Diff Shopify App Profile"
description: "Theme Drift lets you compare two or three Shopify themes at once. With three, compare the original theme, your customized live theme, and a new theme version side by side. When a theme you've customized gets an update, it's hard to tell which changes are your own edits and which are new from the developer. This app shows all versions together, and flags any file where you and the new version changed the same thing, so you can bring your customizations forward safely."
canonical_url: "https://shoplist.co/shopify-apps/theme-drift-compare-diff"
markdown_url: "https://shoplist.co/shopify-apps/theme-drift-compare-diff.md"
last_updated: "2026-10-23"
entity_type: "shopify_app"
slug: "theme-drift-compare-diff"
source: "public Shopify app profile allowlist"
---

# Theme Drift: Compare & Diff Shopify App Profile

> Theme Drift lets you compare two or three Shopify themes at once. With three, compare the original theme, your customized live theme, and a new theme version side by side. When a theme you've customized gets an update, it's hard to tell which changes are your own edits and which are new from the developer. This app shows all versions together, and flags any file where you and the new version changed the same thing, so you can bring your customizations forward safely.

## Quick answer
Theme Drift: Compare & Diff 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 Drift: Compare & Diff
- Monitoring status: First-adopter watch
- Developer: Ionia Studio
- Developer profile: https://shoplist.co/app-developers/checkpoint
- Shopify App Store URL: https://apps.shopify.com/theme-change-monitor
- Website: http://ionia.studio
- Launch date: September 18, 2026
- Shoplist category: Storefronts - Other
- Free plan signal: Yes

## Pricing summary
2 Theme Comparison: Free; AI Report Credits: $1 one-time charge; 3 Theme Comparison: $19.99 one-time charge; Theme Update: $299 one-time charge

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.


## Shopify App Charts
Placements in the week of November 2, 2026 (published Mondays; ranks are the published chart rows, not computed here).

| Chart | Rank | Change | Value | Chart page |
| --- | --- | --- | --- | --- |
| Pricing moves in Storefronts - Other | \#4 | NEW | 0 stores \(estimated\) | https://shoplist.co/shopify-apps/rankings/store-design-storefronts-storefronts-other/pricing-moves |

How the charts are built: https://shoplist.co/shopify-apps/rankings/methodology

## 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, #48 (14-day median position)
- Listing reviews: 0

## Public callouts
- Compare two or three theme versions at once
- In three-way mode, see the original, your changes, and the update
- See conflicts where you and a new theme version changed the same file
- Line-by-line view for Liquid, JSON, CSS, and JavaScript theme files
## Shopify App Store categories
- Storefronts - Other

## Data note
Profile updated: October 23, 2026. This is the profile revision date, not a guarantee that every store was checked on that date.
Public snapshot built: 2026-11-05 14:20:09.896021\+00
Detection metrics refreshed: 2026-11-05 10:00:00.259874\+00
Public app evidence date: 2026-10-23 05:12:05.686515\+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-drift-compare-diff)
- [Shopify apps directory](https://shoplist.co/shopify-apps)
- [Shoplist data methodology](https://shoplist.co/data-methodology.md)