Fuel your sales: how an app boosts your online supermarket

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Friday, September 5, 2025
Fuel your sales: how an app boosts your online supermarket

An app to fuel recurrence (and sales)

In the food sector, recurrence is key. Customers buy every week, often the same products, at similar times. The challenge for ecommerce in this sector is not only to attract, but also to build loyalty and facilitate repurchase.

And for that, a customized native app is the best channel: it eliminates friction, automates purchasing routines, improves communication and generates lasting links. In addition, it provides its own communication channel, without depending on Google or Meta, which reduces advertising costs.

In this article we explain why an app for ecommerce makes the difference, with data, concrete strategies and the example of La Sirena, a supermarket specializing in frozen products.

Supermarket customer behavior has changed

According to data from the Ecommerce Observatory of IAB Spain (2023):

  • 78% of online grocery consumers use mobile to search or shop.
  • The average purchase frequency is 3 to 4 times a month.
  • 61% value being able to repeat previous orders in 1 click.
  • 42% expect to receive personalized promotions directly on their mobile.

Customers are looking for speed, convenience and personalization. Three aspects in which an app far outperforms the traditional mobile web. The ability to save lists, recall orders, and one-touch access to frequent products makes the app channel a favorite among loyal consumers.

Advantages of an app in food ecommerce

Advantages of an app in food ecommerce

1. Smart shopping lists

The app remembers frequent products, allows repeat orders and creates quick lists. This reduces friction and increases conversion. It also improves the shopping experience for families or users who place recurring weekly orders.

2. Push to activate purchases

Push notifications segmented according to the customer's history allow you to remind them of the purchase just when they need it. Examples of effective communications include "Are you short of pizzas for the weekend?" or "Your favorite ice cream is on sale". Active without annoying, these notifications generate a CTR of over 20%, according to Adjust data.

3. Personalized promotions

From the control panel you can launch discounts, batches or combos exclusive to the app. This encourages the use of the app and improves the average ticket. For example, offering an exclusive batch of frozen food only visible in the app generates recurring traffic.

4. Integration with ecommerce

With platforms like Reskyt, the app is 100% connected to your online store. Everything is synchronized in real time: stock, prices, categories or content. This avoids errors, duplications or inconsistencies between channels.

5. Loyalty without complications

Functionalities such as points, coupons, order history and favorites are integrated into the app without the need for custom development. You can manage everything from one panel without code and without the intervention of the technical team.

Case Study: La Sirena improves frequency and average ticket

La Sirena needed a channel that would boost repurchase and allow them to launch exclusive promotions without saturating other channels such as email or networks. Thanks to Reskyt, they developed an app 100% connected to their ecommerce in less than a month.

Case Study: La Sirena e-commerce App developed by Reskyt

Objectives:

  • Reduce abandonment in the mobile purchasing process.
  • Improve recurrence of regular customers.
  • Reduce the time and burden on the technical team.
  • Activate exclusive promotions only in app.

Results with the app created with Reskyt:

  • +38% purchase frequency among active app users.
  • +21% increase in average ticket.
  • +41% push notification open rate.
  • Average purchase time: -27% (thanks to repeat orders).
  • +18% of downloads from QR in-store, reinforcing omnichannel.

Their app has become the favorite channel for their recurring customers, and a key tool for weekly promotions. In addition, they have managed to increase the NPS among app users.

How to get started? 5 key steps

  • Define the ideal purchase flow: from the home page to the shopping cart.
  • Identifies high frequency products to automate suggestions.
  • Set up app-only promotions to incentivize downloads.
  • Segment push notifications by day, product or behavior.
  • Analyze and improve each week from Reskyt's visual dashboard.

The key is to create an agile, repeatable and personalized experience. An app should not replicate the web: it should surpass it in every detail.

Frequently Asked Questions

Can I integrate my points system or club into the app?

Yes, Reskyt allows you to integrate loyalty programs without custom development, and with the possibility of displaying levels, balance, redemption history and benefits per level.

Does the app synchronize with my categories and products?

Everything is synchronized in real time with your ecommerce: prices, stock, promotions and catalogs. In addition, you can program banners or specific content by date, location or user segment.

How long does it take to launch an app?

In just 4 weeks you can have an app 100% connected, published and ready to convert. The process includes design, integration, testing, training and ongoing support.

Can I change content and banners from marketing?

Yes, from the visual panel you can edit everything without touching code or depending on IT. This allows greater agility and speed to adapt to trends or key dates such as "back to school" or "Christmas".

Does it work with multiple stores or locations?

Yes, you can segment content, prices or promotions by store or geographic area. You can even activate in-store pick-up or click & collect promotions exclusive to the app.

Bottom line: if you sell food, you need an app that nurtures the relationship.

An app for food ecommerce is not a whim: it is the best way to accompany the customer in their recurring purchase, facilitate the experience, and differentiate yourself from the competition. And it also gives you independence from traditional advertising channels.

If brands like La Sirena are already seeing real results, why not take the leap?

Want to see what your supermarket app could look like? Request a demo and we will take you step by step.

Request a personalized demo with the Reskyt team