Gufi
All case studies
Sports nutrition · Synergym

A full e-commerce, built from zero on one platform

From 6 tools down to 1 platform.

61.797
customers
2.017
orders processed
22.757
marketing emails
33
automations 24/7

What was happening

Strong is the official sports-nutrition store of Synergym, one of Spain's largest gym chains. It was built from zero on Gufi — storefront, member login, payments, shipping, marketing and stock — as one platform instead of six disconnected SaaS tools, and connected directly to Synergym's 60,000+ member base.

Members sign in with a magic link, are recognised automatically and get their 5% member discount at checkout. Stripe and Redsys move orders to paid and into fulfilment on their own, SEUR labels are generated and delivery tracking is checked automatically.

Strong

Where customers come from

99,7 %are gym members
  • Synergym members99.7 %
  • web sign-ups0.3 %

What changed

BeforeWith Gufi
Before · A store was needed, fast and from scratchFull storefront on Gufi: catalog, packs, cart, checkout and accounts
Before · Six separate tools stitched togetherOne platform, no separate shop engine
Before · Tens of thousands of members with no bridge to the shopSynergym member sign-in, with their discount applied at checkout
Before · Labels, tracking and campaigns by handSEUR shipping and welcome, cart and win-back emails, automated

Synergym's members got a real store — built end-to-end on Gufi, from the login to the checkout to the box on the doorstep.

Strong

Live counts from the Strong Gufi instance, June 2026. These are real cumulative volume; “six tools into one” describes the architecture Strong runs today, not a measured before/after delta.