DiffMate ‑ Asset Compare Tool vs ThemeGuard
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 14, 2026 for ThemeGuard.
The short answer
- Only ThemeGuard 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.
Free
- · 1 comparison / month
- · 3 snapshots
Starter
- · 20 snapshots
- · Manual backups
- · Unlimited comparisons
Pro
- · Approval workflow
- · Manual backups
- · Multiple themes management
- · Published theme watcher
- · Scheduled backups
- · Unlimited comparisons
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.
ThemeGuard helps merchants manage Shopify theme changes with greater visibility and control. It lets you compare theme versions, take and manage snapshots, and track modifications before publishing. You can assign approval statuses, schedule automated backups, and restore previous versions when needed.
- 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 theme versions and review code differences
- Take and manage snapshots of any theme
- Schedule automated backups for published themes
- Assign approval statuses before releasing updates
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 |  ThemeGuard |
|---|---|---|
| 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 | ThemeGuard |
|---|---|---|
| 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 | ThemeGuard |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | No monthly plan listed | $19/month |
| Longest free trial | Not listed | Not listed |
| Plans listed | Not published | 3 |
Listing
| Measure | DiffMate | ThemeGuard |
|---|---|---|
| Shopify category rank | #57(ahead) | #278 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Dec 6, 2023 | Apr 13, 2026 |
| Languages | 1 | 1 |
| Developer | 84Labs | MM |
FAQ
DiffMate and ThemeGuard: common questions
- Is DiffMate or ThemeGuard cheaper?
- Only ThemeGuard 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 14, 2026 for ThemeGuard; 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 14, 2026 for ThemeGuard. 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.