
Customer loyalty - OtherBy Marquee Development3.7 (9 reviews)Updated September 18, 2026
Shoplist has not found Doppelganger on a storefront yet, so it tracks the app through its 9 public reviews and pricing instead. Storefront detections will appear here as soon as Sonar finds them.
Get alerted on first storefront installs, review spikes, pricing changes, and listing edits.
Apps merchants weigh against Doppelganger, with their own detected stores and ratings.
Merge duplicate accounts and get a better view of the actual Customer Lifetime Value.
Every shop has to deal with duplicate accounts. Whether it is from Point Of Sale sales with credit cards or from customers using multiple email addresses to place orders. As a result, your Customer Lifetime Value (CLV) is often way off. With Doppelganger, you can find, link and merge duplicate accounts. Also useful for linking accounts from the same company together to determine the Life Time Value of a client company.
Every number on this page comes from public storefront scans and the public Shopify App Store listing. If Shoplist shows Doppelganger on a store, it is there.
Read the data methodologyCompare
Detected stores, ratings, pricing, and momentum side by side.
Developer
Every app Marquee Development publishes, with their detected reach.
Rankings
The ten apps gaining the most detected installs in each category.
Directory
Browse every app Shoplist tracks, by category, rating, and reach.