Custom Mobile Application Development (iOS & Android)
Creating a mobile application isn’t just about “developing screens.” A useful and profitable app relies on a deep understanding of user behavior, solid scoping, consistent technical choices, and reliable execution from deployment to long-term maintenance.
At Aventique, we handle digital projects from A to Z: conception and design, development, testing, deployment, and TMA/maintenance for iOS & Android mobile apps.
Why build a mobile application?
A mobile application is relevant when it provides a smoother, more personalized, or more “contextual” experience than a website (notifications, offline access, sensors, recurring user journeys, business-specific features). For many projects, the goal is to improve engagement, productivity, or customer relations with a product built to last.
To meet these high-performance requirements, IT outsourcing often allows you to mobilize specialized mobile experts (iOS, Android, Cross-platform) without increasing your internal overhead.
Before developing, we validate the right levers with you: use cases, target audience, KPIs, user journeys, and technical or scheduling constraints. Whether you choose outsourcing or hybrid management, this scoping phase prevents budget overruns and unnecessary features.
Which type of mobile application to choose?
The right choice depends on your budget, timeline, required features, and performance requirements (offline capability, sensors, store presence, etc.). Common approaches include:
- Native Application (iOS / Android): Maximum performance and full access to phone features. Example: The Trading Sat stock market app, acquired by the NextRadioTV group, developed natively by Aventique (Objective-C and Java).
- Cross-platform Hybrid Application: A shared codebase for iOS and Android, often faster to deliver; frameworks like React Native or Flutter are widely used.
- PWA (Progressive Web App): An “app-like” experience via the web, suitable for specific use cases.
- No Code / Low Code: Useful for launching an MVP very quickly when the scope allows (back-office, simple workflows, limited budget).
We help you decide based on your objectives (time-to-market, total cost, scalability, technical debt).
Our method for creating your mobile application
1. Scoping and Product Conception
Before design and code, we secure the “what” and the “why.”
- Scoping workshops: objectives, targets, journeys, features, constraints.
- Backlog drafting (user stories) and MVP definition.
- Estimation and planning (phases, milestones, dependencies).
2. Usage-Oriented UX/UI Design
Design isn’t just decorative: it drives clarity, conversion, and retention.
- Wireframes and prototypes.
- Design system if necessary.
- Quick usability and comprehension tests.
3. Development and Quality
We industrialize quality to deliver a stable, high-performance, and maintainable app.
- Iterative development (sprints) with regular demonstrations.
- Testing (functional, regression, user acceptance testing).
- Performance and mobile experience optimization.
4. Deployment and Publication (App Store / Google Play)
We support you right through to the official launch.
- Preparation of store assets, configuration, build & release.
- Post-deployment monitoring.
5. Maintenance and Evolutions
An application is a living product: patches, evolutions, security, and OS compatibility.
Aventique ensures long-term maintenance and continuous improvement.
How much does mobile application development cost?
The cost primarily depends on:
- The number of screens and user journeys,
- Features (auth, payment, geoloc, offline, notifications, etc.),
- Integrations (CRM, ERP, IT systems, APIs),
- UX/UI and quality requirements,
- Targeted platforms (iOS, Android, or both).
The market shows significant variations based on complexity and scope: this is why we prioritize estimation by phases (MVP then iterations) rather than a rigid “flat fee” that lacks control.
Why Aventique is the right choice for your mobile application
You are looking for an agency capable of delivering, not just “coding.” Our positioning is pragmatic: building a robust, maintainable application aligned with your business challenges.
- Experience in A-to-Z digital projects (conception → dev → testing → production → maintenance).
- Expertise in iOS & Android mobile development, with tailored technological choices (native, hybrid, PWA, or fast MVP depending on relevance).
- Capacity to strengthen your delivery: Aventique also provides web & mobile experts and scaling/nearshoring approaches based on your cost and timeline constraints.
Frequently Asked Questions about Mobile App Development
How long does it take to develop a mobile application?
It depends on the scope. In practice, we often aim for an MVP within a few weeks to a few months, followed by monthly iterations.
Do I need both an iOS and Android app from the start?
Not always. Depending on your target audience, we can prioritize one platform or choose a cross-platform approach for a faster launch.
Can we start with an MVP?
Yes, it is often the best strategy: deliver a useful first version, measure usage, and then invest where the ROI is real.
Do you provide maintenance?
Yes: production deployment, bug fixes, evolutions, and TMA can all be included in our support package.