Trucco's Native App Converts 4x Mobile Web, and One App-Only Week Lifted Online Sales 25%

About Trucco

Trucco is a Spanish women's fashion brand founded in 1985, when it opened its first store in Madrid. It is known for a minimalist aesthetic and coordinated looks, and it sells through 250 points of sale in ten countries as well as online.

The challenge: launching a native app during a Shopify migration

Trucco had to launch a new ecommerce platform and a new app at once, without losing the customers or the brand it already had in the app.

Trucco was moving its store from PrestaShop to Shopify. At the same time, it was replacing an existing webview app with a native one. Both had to go live in the same launch, so the two projects had to move in step: same catalog, same collections, same brand, same date.

Trucco already had app customers. That made the job harder than a first launch. The new app had to bring those customers across without friction, and it had to look like Trucco, not like a template with a logo on it.

That raises the objection every brand in the middle of a replatform has: shouldn't the app wait until the migration settles? Launching both together sounds like twice the risk and twice the work for an ecommerce team that is already stretched.

"Switching from our previous app to the new one was incredibly easy and smooth. The NAPPS team handled the whole migration process perfectly: securely, in an orderly way, and without creating any operational load for us."

David RodriguezTrucco Digital & Ecommerce Manager

The hypothesis: why the app could not wait for the Shopify migration to settle

A native app launched with the new store, not after it, would keep Trucco's existing app customers and turn the app into a sales channel from day one.

Waiting would have meant running the old webview app against a new Shopify store, or leaving app customers without an app during the gap. Launching together meant one switch for customers, one launch for the team, and an app that started on the new platform instead of being rebuilt for it later.

The solution: a native app built alongside the Shopify migration

NAPPS launched Trucco's native iOS and Android app alongside the move to Shopify, designed around Trucco's own visual identity.

The app carries Trucco's minimalist design language into a native shopping experience, without the brand building an app from scratch. The migration of existing app customers from the webview app to the native one was handled by NAPPS, so Trucco's team did not have to run it.

"They also managed to build a first version of the app fully aligned with our brand, as if we had developed it in-house, with judgment, sensitivity, and very good taste in fashion."

David RodriguezTrucco Digital & Ecommerce Manager

The plays: two reasons for customers to open the app

With the app live, Trucco gave customers two reasons to open it: an offer they could only get there, and outfits they could buy in one place.

1. Run an app-only week outside the sale calendar. From June 2 to 7, 2026, Trucco ran a 20% discount across the whole app, available only in the app. During that week the app accounted for 65% of online orders and 70% of online order value, against a 25% share of online order value in the other weeks of the comparison period. App sales per day were 3.5 times higher, and app orders per session were 2.3 times higher than in the other weeks. Didn't the app just take sales from the website? Partly, and the data says so. Website sales per day fell by half that week as buyers moved to the app for the offer. The total still grew: online sales per day were 25% higher than in the other weeks of the period, after the discount. The play for any fashion brand: pick a week outside the usual sale calendar, put the offer only in the app, and announce it.
2. Sell the whole outfit from one screen. Trucco uses NAPPS shoppable content to feature products from collections such as the Event Collection and the Nomad Collection, alongside coordinated outfits under its Total Look concept. A Total Look shows every piece of the outfit, and each piece can be added to the cart from the same screen. The play for a brand built on coordinated looks: put the full outfit where the customer is already looking, so buying the second and third piece takes one tap. The +17% items per order in the Results is consistent with that, though it is not attributed to this feature alone.

"For fashion, features like lookbooks and shoppable videos are simply spectacular and make the difference."

David RodriguezTrucco Digital & Ecommerce Manager

The results: a native app that converts 4x mobile web

The app became a main sales channel within six months and converts about four times as often as mobile web.

The conversion figure is the one to read first. It compares the app with mobile web, the same device and the same customer moment, and it leaves out the promotional week, so the discount is not doing the work.

Native app compared with the previous webview app. App Store Connect data compares the webview app from October 1, 2025, to March 31, 2026, with the NAPPS native app from April 1 to September 30, 2026. It covers iOS only, and the earlier window includes Black Friday and Christmas.

Read it honestly. This is a channel comparison, not a controlled test: customers who install an app tend to be more engaged already, so part of the conversion gap is who uses the app, not only the app itself. The download comparison sets two different apps against two different windows, and the earlier one had the strongest retail season of the year, which makes the comparison conservative rather than flattering.

Who this is for: fashion brands planning a Shopify migration

Trucco is the case for fashion brands moving to Shopify, or still on a webview app, who assume the app has to wait until the migration settles. Trucco launched both together, kept its existing app customers, and the app generated 29.1% of online sales from April to September 2026 while converting about four times as often as mobile web.

The play to copy is the app-only week: pick a week outside the usual sale calendar, put the offer only in the app, and announce it. If you are planning a Shopify migration or a move off a webview app, book a demo with NAPPS and plan the app into the same launch.