MergeGuard vs Singulary for merging duplicate customers
Singulary and MergeGuard for Shopify both find duplicate customers and merge them, including automatic merging. Singulary is Built for Shopify, has 12 reviews and prices by customer count from $9 a month. MergeGuard prices by merges, shows why each group matches, and adds audiences that count people. Singulary’s details come from its listing on October 26, 2026.
Last updated
Listings checked
This page is written by MergeGuard.
Both apps were checked on their Shopify App Store listings on October 26, 2026. Prices are in USD and either company can change them. Read both listings before you choose: Singulary and MergeGuard.
Everything about Singulary on this page is what Singulary says on its listing. We haven’t tested Singulary ourselves.
Which one fits your store
Choose Singulary ‑ Merge Customers if
- You want an app that is Built for Shopify, or one with App Store reviews you can read.
- You want a paid plan from $9 a month, priced by how many customers you have.
- You use Shopify Flow and want the duplicate app to work with it.
- You want incomplete-address fixes alongside invalid-email fixes.
Choose MergeGuard for Shopify if
- You want to see why each group matched, field by field, before a permanent merge.
- You want automatic merging for strong matches, and to decide yourself whether groups that need your judgment merge too.
- You want newsletter, win-back, VIP and subscription lists (subscribers who may cancel) that count each person once.
- You want a History record of every change, with Shopify’s verification and a snapshot of each merged customer.
- You’d rather pay for merges than for the size of your customer list.
Side by side
Finding and reviewing
| Singulary (from its listing) | MergeGuard for Shopify | |
|---|---|---|
| Finding duplicates | Audits the whole customer list. Scheduled scans and instant checks | Finds duplicate groups across the store and sorts them into Strong, Needs your judgment and New, with protected groups shown separately |
| What it matches on | Name, email, address and phone | Name, email, phone and address, shown as evidence for each group |
| How a match is explained | Confidence scores and side-by-side comparison | “Why we think it’s one person”: the matching name, email, phone and address details for each group, with a recommended profile to keep |
Merge controls and records
| Singulary (from its listing) | MergeGuard for Shopify | |
|---|---|---|
| Merging | Side-by-side and bulk merge | A whole group in one confirmation, or every strong match in one pass |
| Automatic merging | Listed | Optional on Growth, Scale and Enterprise, for strong matches, and for groups that need your judgment only if you add them. Protected profiles are never merged automatically |
| Record of changes | Not listed | History: every change, the details kept, Shopify’s verification, and a snapshot of each merged customer |
Beyond merging
| Singulary (from its listing) | MergeGuard for Shopify | |
|---|---|---|
| Contact data fixes | Invalid emails and incomplete addresses | Suggested corrections for mistyped emails, such as gmial.com → gmail.com. Throwaway emails are flagged and never changed. Each fix can be undone once |
| Marketing audiences | Not listed | Newsletter cleanup, win-back, VIP and Subscription (subscribers who may cancel) lists that count each person once |
| Integrations | Shopify Flow and Klaviyo | Klaviyo list sync when you choose it, or CSV export |
Plans and listing
| Singulary (from its listing) | MergeGuard for Shopify | |
|---|---|---|
| Free plan | Includes up to 1 scan, up to 10 merges and a limited view of duplicates | 25 merges and 5 contact fixes, once |
| Paid plans | Growth $9 a month up to 25,000 customers, Business $49 up to 100,000 customers, Enterprise $99 with scans up to 750,000 customers | Starter $29 a month (150 merges). Growth $49 (300). Scale $99 (500). Enterprise: contact us |
| Built for Shopify | Yes | No |
| App Store reviews | Rated 5.0 from 12 reviews | None yet |
“Not listed” means we didn’t find it on Singulary’s listing. It may exist in the app.
What both apps share
Both merge through Shopify, so Shopify’s rules apply to each. A merge can’t be reversed, and some profiles can’t be merged at all, for example a profile that has ever had a subscription contract. See why Shopify blocks a merge.
How to decide
Try both on your own store. Look at a group you know well and check whether each app explains the match in a way you trust. Before your first merge, run the safe merge checklist.
With MergeGuard, nothing merges until you confirm, or until you switch on automatic merging for strong matches or groups that need your judgment. See how it works, or compare it with Shopify’s built-in merge, UnifyMate or Doppelganger. All the comparisons are on one page: compare duplicate customer apps.
Sources
Each claim on this page, where it comes from, and when we checked it.
| Claim | Source | Checked |
|---|---|---|
| Singulary audits the whole customer list and matches on name, email, address and phone, with confidence scores. | Singulary ‑ Merge Customers on the Shopify App Store (apps.shopify.com) | |
| Singulary offers invalid-email and incomplete-address fixes, side-by-side and bulk merge, scheduled scans, instant checks and automatic merging. | Singulary ‑ Merge Customers on the Shopify App Store (apps.shopify.com) | |
| Singulary lists Shopify Flow and Klaviyo integrations. | Singulary ‑ Merge Customers on the Shopify App Store (apps.shopify.com) | |
| Singulary pricing: Free (up to 1 scan, up to 10 merges and a limited view of duplicates); Growth $9 a month up to 25,000 customers, Business $49 up to 100,000 customers, Enterprise $99 with scans up to 750,000 customers. | Singulary ‑ Merge Customers on the Shopify App Store (apps.shopify.com) | |
| Singulary is Built for Shopify, and its listing shows a rating of 5.0 from 12 reviews. | Singulary ‑ Merge Customers on the Shopify App Store (apps.shopify.com) | |
| MergeGuard’s listing has 0 reviews and isn’t Built for Shopify. | MergeGuard on the Shopify App Store (apps.shopify.com) | |
| MergeGuard plans, allowances and which plans include automatic merging. | MergeGuard pricing (mergeguard.store) |
See every duplicate group and its evidence
Install MergeGuard for Shopify and see every duplicate group with its evidence. Nothing merges until you confirm, or until you switch on automatic merging for strong matches or groups that need your judgment. The Free plan includes 25 merges and 5 contact fixes, once.