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Case studies

Interfaces, scale and delivery outcomes
Świat KsiążkiMobile loyalty programme and product catalogueSFDCommerce, loyalty and everyday motivationSTS / Solarts3D solar installation configurator
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Project areas

  • Mobile
  • Web
  • AI
  • E-commerce

Different industries. One goal — tangible outcomes.

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App cost calculatorEstimate scope and budgetE-commerce AI adviserMap decisions, risks and optionsE-commerce TCO calculatorCompare SaaS and custom over 5 years
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Product scenarios

Loyalty · Industry: Retail

Loyalty app for retail chain

Coupons, personalization and push notifications designed to encourage repeat purchases

Segments, automated scenarios and product recommendations based on purchase history. Before work starts, we agree the scope and the measures that will show whether it works for your business.

Discuss the scope for your business See the problem and solution
Conceptual purchase, reward and return loop
Concept visual, not a client application screen
01What is not working today02How the solution could work03What our work proves04What to measure05How we define the scope06What needs to connect
01What is not working todayLow retention and weak personalizationThe situation that costs the team time, sales or control of the process.

Customers return infrequently and mass campaigns have low ROI. You need personalization and a direct channel.

  1. 01Low retention
  2. 02Untargeted coupons
  3. 03No behavioral insights
  4. 04Underused push notifications channel
02How the solution could workPersonalization, coupons and automationThe key parts of the system and the role each one plays in daily work.

Segments, automated scenarios and product recommendations based on purchase history.

  1. 01Personalized coupons
  2. 02Segmentation and campaign automation
  3. 03In-app loyalty card
  4. 04push notifications and inbox
  5. 05Recommendations and cross-sell
03What our work provesProven in related deliveriesSee public projects that demonstrate our delivery experience in this area.

Below are public GMI deliveries from this area. They demonstrate our delivery experience, but they do not promise the same outcome for a new product.

Proven in related deliveries

SFD Case Study - loyalty mobile app and e-commerce

SFD app nominated for Mobile Trends Awards 2025 (Commerce). See how we helped SFD build a loyalty app: over 100,000 downloads and 4.9 App Store rating. Mobile app for sports shops.

View the delivery

Proven in related deliveries

Świat Książki Case Study - mobile app with 100,000+ downloads

Mój Świat Książki reached 100,000+ downloads. See the bookstore loyalty app built with React Native, legacy integrations, catalog, and promotions.

View the delivery
04What to measureWhat we will validate in your businessThe metrics to define before work starts and review after a pilot.

Public deliveries demonstrate our experience. The baseline and target for each metric will still be specific to your business.

01

Metric to validate

Higher retention

Related delivery experience helps us plan this area. We will define the baseline and target for higher retention using your business data.

02

Metric to validate

Bigger basket

Related delivery experience helps us plan this area. We will define the baseline and target for bigger basket using your business data.

03

Metric to validate

Better return on campaign spend

Related delivery experience helps us plan this area. We will define the baseline and target for better return on campaign spend using your business data.

05How we define the scopeFrom the problem to an agreed planFrom a clear problem to an agreed scope, price and delivery plan.
01

Define the problem

We examine the process, users, data and constraints, then agree which problem is worth solving first.

02

Map and test the flow

We design the key product journey and test it with the people who will actually use it.

03

Build and integrate

We build the product, integrations and tests together. Progress and decisions stay visible throughout.

04

Launch and measure

We release in stages, measure the agreed indicators and use the evidence to plan what comes next.

06What needs to connectSystems and integrations behind the solutionThe systems, data and integrations required for a safe launch.

Backend

  • Node.js
  • PostgreSQL

Mobile

  • React Native
  • Expo

Integrations

  • POS/ERP
  • Push

Cloud

  • DigitalOcean

A service matched to this scenario

Loyalty applications

Loyalty programs connected with commerce, data and customer communication.

Explore the service scope

Related topics

Industry for this scenarioRetail, Loyalty

Next step

Tell us which process you want to improve

During workshops we align the goal, users, data and risks. Once the scope is agreed, you receive a fixed-price delivery proposal.

Discuss the scope for your business Prepare a short brief
Contact

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about the project.

Have an app idea or need technological support? Write to us — we'll prepare a preliminary analysis and estimate within 48h. Projects that go through our DDT process (Discovery, Design & Technology) come with a price guarantee and a fixed-price agreement — a key differentiator for us.

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Mobile Trends Awards 2025 nomination - SFD app
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