App development & AI · Felidata group
Turn your ideas into applications that perform.
We help startups, SMBs and enterprises design and build their mobile, web and SaaS applications. Our artificial intelligence expertise gives your projects a decisive edge.
Our areas of expertise
Six areas to cover all your digital needs.
Mobile applications
iOS, Android and cross-platform apps, native or built with React Native / Flutter, that engage your users.
Learn more →Web applications
Business web apps, SPAs, PWAs, dashboards and back-offices that are fast, accessible and secure.
Learn more →SaaS platforms
From idea to SaaS product: multi-tenant architecture, subscriptions, analytics and scalability.
Learn more →Marketplaces
Multi-vendor platforms: vendor management, secure payments, commissions and matching.
Learn more →AI integration
AI assistants, natural language processing, computer vision, intelligent automation, predictive analytics and generative AI.
Learn more →Consulting & strategy
Technical audits, digital strategy, product roadmaps and support for your digital transformation.
Learn more →Why choose Feliapp?
What guides the way we work.
- AI in our DNAArtificial intelligence isn’t an add-on: every project benefits from our expertise to automate, optimise and innovate.
- A complete teamDesign, development, DevOps and AI: one point of contact, no friction, from scoping to delivery.
- Based in EuropeA company based in Portugal and projects built with GDPR in mind. Your intellectual property is protected.
- 100% customNo templates, no copy-paste: every solution is designed around your business needs.
- A long-term partnerWe don’t disappear after delivery: maintenance, updates and technical support, we stay by your side.
- An integrated ecosystemThe backing of the Felidata group: cloud, infrastructure and technical support to make your project succeed.
Our methodology
A clear process, from idea to production, so you stay in control at every step.
- 01
Discovery
In-depth analysis of your needs and business goals.
- 02
Design
UX/UI and technical architecture validated together.
- 03
Development
Agile sprints with a demo at the end of each sprint.
- 04
Delivery
Deployment, training and complete documentation.
- 05
Evolution
Maintenance, optimisations and new features.
Industries
Cross-sector expertise, adapted to the challenges of your industry.
- E-commerce & retail
- FinTech & insurance
- Health & MedTech
- Industry & logistics
- EdTech & training
- Services & B2B
Feliapp in brief
Feliapp is the application development company of the Felidata group (BTJT, Lda, Portugal). It designs and builds custom mobile apps, web applications, SaaS platforms and marketplaces, integrates artificial intelligence into its clients’ products and advises them on their digital strategy, across Europe.
Frequently asked questions
How much does it cost to develop an application?
Every project is unique: cost depends on complexity, features and timeline. We provide a free, detailed quote after analysing your needs.
How long does it take to develop an application?
It depends on the scope: an MVP takes less time than a full application. We define a realistic timeline together during the discovery phase.
Do you work with early-stage startups?
Yes. We help startups build their MVP. Our agile approach allows fast iteration and validation of your product-market fit.
What does a typical project look like?
Everything starts with a discovery call to understand your needs. We then send you a detailed proposal with timeline and budget. Development runs in agile sprints with regular demos: you stay in control at every step.
Do you offer maintenance after delivery?
Yes, we offer maintenance contracts tailored to your needs: corrective, evolutive or full support. We remain your long-term technical partner.
Do you work remotely?
Yes, our team works mainly remotely, with proven processes: regular check-ins, shared project management tools and efficient asynchronous communication.
Are your applications GDPR compliant?
GDPR compliance is taken into account from the design phase of every project. Feliapp is a brand of BTJT, Lda, a company established in Portugal, in the European Union.
Ready to bring your project to life?
Get a personalised analysis and a detailed quote, free and with no commitment.