DiffMate ‑ Asset Compare Tool vs Theme Drift: Compare & Diff
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Sep 3, 2026 for DiffMate, Oct 23, 2026 for Theme Drift.
The short answer
- Only Theme Drift lists a free plan.
Head to head
Momentum
New reviews each month
Review pace is the clearest public read on how fast an app is winning new merchants.
2 Theme Comparison
- · Compare two theme versions side by side
- · Full file-by-file change list
- · Image, video and font previews
- · Line-by-line diff with syntax highlighti
- · Liquid, JSON, CSS and JavaScript support
- · No credit card required
AI Report Credits
- · 1 credit for $1
- · 15 credits $12, 20 credits $15
- · 3 Theme Comparison includes 5 credits
- · 5 credits $4.50, 10 for $8.50
- · AI report: 1 credit (3-way: 2 credits)
- · Buy 1 to 20 credits at a time
3 Theme Comparison
- · Added/removed line counts per file
- · Compare base, yours and new theme
- · Full line-by-line view for 3-way diffs
- · Includes 5 AI change report credits
- · No subscription
- · Pay once, use it forever
Theme Update
- · Add-ons for rush delivery, more
- · Custom theme migration, done for you
- · Delivered on a duplicate theme
- · One-time payment, no subscription
- · Preserves your customizations
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featureDiffMate is a convenient way to see the asset differences between different versions of your theme. Filter to see only assets that have changed, all assets, or if they exists on one but not both. Our diff-editor allows you to copy specific changes (or entire files) from one theme to another.
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.
- See all your themes including hidden developer themes created by developer tools
- Easily generate an overview of all the asset changes between themes
- Compare assets line-by-line to see any differences using our diff-editor
- Using the diff-editor you can copy files or specific changes between themes
- 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
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  DiffMate |  Theme Drift |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | DiffMate | Theme Drift |
|---|---|---|
| App Store rating | 4.3 ★ | Not published |
| App Store reviews | 14 | Not published |
| New reviews, 28 days | 0 | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | DiffMate | Theme Drift |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | No monthly plan listed |
| Longest free trial | Not listed | Not listed |
| Plans listed | Not published | 4 |
Listing
| Measure | DiffMate | Theme Drift |
|---|---|---|
| Shopify category rank | #57 | #48(ahead) |
| Shopify App Charts | Not on this week’s charts | #4 on Pricing moves in Storefronts - Other |
| Built for Shopify | No | No |
| Launched | Dec 6, 2023 | Sep 18, 2026 |
| Languages | 1 | 1 |
| Developer | 84Labs | Ionia Studio |
FAQ
DiffMate and Theme Drift: common questions
- Is DiffMate or Theme Drift cheaper?
- Only Theme Drift lists a free plan. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Sep 3, 2026 for DiffMate, Oct 23, 2026 for Theme Drift; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Sep 3, 2026 for DiffMate, Oct 23, 2026 for Theme Drift. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.