Portugal · Agentic mobile development

Mobile App Development for Portugal: iOS and Android

In September 2026, Android held 67.32% of the mobile operating system market in Portugal and iOS 32.68%, according to StatCounter Global Stats. An app that launches on iPhone first leaves about two thirds of Portuguese phones waiting. The harder part is not the platform choice, though. It is shipping to both stores with Portugal's device consent rule, its age-13 threshold, its local payment methods and the store privacy declarations right in the first release.

Curiosive is a studio in Ankara, Türkiye, that builds with AI coding agents and has a senior engineer review every diff. We use React Native so one TypeScript codebase reaches the App Store and Google Play. Agents scaffold screens, navigation, list rendering, form validation, tests and draft store metadata. Engineers own token storage in Keychain and Keystore, auth refresh, server-side entitlement checks, offline behaviour, permission prompts and the privacy declarations store review reads.

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24: published portfolio projects
5+: years building for production
12: countries the work runs in
100%: of code read by a senior engineer
1 day: to hear back, from the engineer

Android and iOS in Portugal: why one React Native codebase

With Android on roughly two of every three phones in Portugal, a native iOS app followed months later by an Android port means building the same product twice, for the smaller audience first. React Native lets both stores ship from one codebase, with Portuguese, the country's official EU language, as the base language rather than a translation added before launch. Android carries its own deadline: since 31 August 2026, new apps and updates submitted to Google Play must target Android 16 (API level 36) or higher, and existing apps must target API level 35 to stay available to new users. We set the target level at the start of the project and keep it in the release checklist. Coffict (coffict.com) and TrendinChat (trendin.chat) are React Native apps we shipped for clients in Türkiye, built the same way: one codebase, with a senior engineer reading every change before it merges.

Article 5 of Lei n.º 41/2004, as amended by Lei n.º 46/2012, allows storing or reading information on a user's device only with prior consent based on clear and complete information about the purposes, unless it serves solely to transmit a communication or is strictly necessary for a service the user expressly requested. The CNPD enforces breaches, with fines of €5,000 to €5,000,000 for legal persons. In an app this decides when analytics and attribution SDKs may start: after the user's choice, not at launch. Engineers write that gate by hand and test it on both platforms. Age matters too. The GDPR sets 16 as the default age of digital consent, but Article 16 of Lei n.º 58/2019 sets it at 13 in Portugal. Below 13, processing is lawful only with the consent of the child's legal representatives, preferably through secure authentication, so a family or education app needs a parent flow designed before any data is collected.

MB WAY and in-app payments for users in Portugal

MB WAY is a Portuguese digital wallet: the user enters a phone number at checkout and approves the payment in the MB WAY app, with a default daily cumulative limit of 1,000 EUR that can be raised to 10,000 EUR. Stripe lists MB WAY as not supporting recurring payments, so it fits one-off purchases such as orders or bookings, while a subscription paid through it only works as an emailed invoice settled each period. On iOS, Apple says its EU terms, effective 1 October 2026, let apps in the EU offer alternative payment processing alongside In-App Purchase, at a 20% commission, or 10% for program participants and for subscriptions after their first year. Whatever the mix, access is granted from a server-side entitlement check, never from the client's word that a payment worked, and that code is reviewed by a senior engineer before release.

Store declarations, account deletion and accessibility

Both stores read what an app does with data. Google Play requires the Data safety form for every app, including data shared through SDKs, and Apple requires a privacy manifest declaring approved reasons for required-reason APIs. Both require account deletion: on iOS it must start inside the app, and Google Play also wants a web link for deletion requests. Agents draft these declarations from the codebase; an engineer checks them against what the SDKs really do. Accessibility is a legal question in Portugal as well. Decreto-Lei n.º 82/2022 transposed the European Accessibility Act and has applied since 28 June 2025 to services provided to consumers, with ANACOM supervising e-commerce and Banco de Portugal supervising payment and e-money services. Fines for legal persons run from €12,000 to €24,000 for serious breaches and start at €24,000 for very serious ones. Microenterprises are exempt from the service accessibility requirements.

Proof

Published project examples

TrendinChat

Coffict

This is HCD

MoneyCare

Appster

Release Coach AI

AI-accelerated development

from$2,000

per month

Senior engineers building your product with AI coding agents: web, mobile, SaaS or browser extension, reviewed before anything ships.

Web, mobile, SaaS and browser extensions
AI-assisted delivery under senior engineer review
Scope and capacity agreed in writing, renews monthly

AI-accelerated development, billed monthly. We confirm scope, capacity and start date in writing before checkout.

Questions

The things people ask before starting.

How much does it cost to build a mobile app for users in Portugal?

Work starts from $2,000 per month under our one offer, AI-accelerated development, priced in US dollars. For an app aimed at Portugal, what each month covers, such as both store builds, an MB WAY checkout or a parent consent flow, is set out in writing as scope and capacity once a discovery call has defined the first release.

Can a Portuguese app take MB WAY payments for a subscription?

Not as automatic renewals. Stripe's documentation shows MB WAY without recurring payment support, so an MB WAY subscription depends on an emailed invoice the customer pays each period. For renewals that charge on their own, plan on another method, and keep MB WAY for one-off purchases inside the app.

What is the age of digital consent for apps in Portugal?

It is 13. Article 16 of Lei n.º 58/2019 lets a child consent to information society services offered directly to them from age 13. Below that age, processing is lawful only with the consent of the child's legal representatives, so apps aimed at younger users need a parent consent flow.

Does Portugal's accessibility law apply to my mobile app?

It can, if the app delivers a consumer service covered by Decreto-Lei n.º 82/2022, such as e-commerce or consumer banking. Microenterprises, meaning fewer than 10 persons and an annual turnover or balance sheet total of no more than EUR 2 million, are exempt from the service requirements. Whether your app is in scope is worth confirming with a lawyer.

How do working hours line up between Portugal and a studio in Türkiye?

Most of the day is shared. Lisbon runs two hours behind Ankara in summer and three in winter, leaving 7 or 6 hours of an ordinary 09:00 to 18:00 working day in common. Work runs on Türkiye business hours, with written decisions, a releasable build every week and one short weekly call inside that window.

Solutions

Locations

What happens after you write to us.

01
You describe the product
One paragraph on what you are building, roughly when you need it, and who it is for. No brief, no form with fifteen fields.
02
You get a reply within a day
From the engineer who would do the work, not a sales team. If we are not the right fit we say so, and where possible we point you somewhere better.
03
You get a scoped plan
Scope, price and timeline in writing before anything is committed. You decide with the numbers in front of you.

No long contract to begin, no lock-in to our tooling, and the code is yours from the first commit.

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Contact

Looking for an engineering partner for the long haul?

A short note about the product, the timeline and who it is for is enough to start. You will hear back from the engineer who would do the work, not a sales team.

hello@curiosive.com See what we have shipped

Ankara / Türkiye · Working across European and US time zones

Mobile App Development for Portugal: iOS and Android

Android and iOS in Portugal: why one React Native codebase

MB WAY and in-app payments for users in Portugal

Store declarations, account deletion and accessibility