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I will be your german android and ios mobile app developer for app development
Jean App Dev
Top Rated
2 orders in queue
5.0
5.0
Gig Summary
What people loved about this freelancer
bettyk16
Germany
Amazing experience to work with Jean as always! He went above and beyond with the app update and did a lot of extra work, was super accommodating, and made...
vapormarkt
Austria
Ausgezeichnete und professionelle Kommunikation Antwortzeiten sind IMMER sehr schnell und auf den Punkt. Sehr direkt und ehrlich. Solche Unternehmen findet man leider heutzutage selten. Vielen Dank für alles!
mirivankniri
Germany
Ich bin sehr zufrieden mit der Zusammenarbeit! Jean hat alle Änderungswünsche zuverlässig und geduldig umgesetzt - auch bei kleineren Details war er sehr genau...
i_3daz_group
Germany
Ausgezeichnete Low-Fidelity-Wireframes: Jean zeigte höchste Professionalität und ein tiefes Verständnis unserer Anforderungen. Die Nutzerflüsse (Dashboard,...
rloerper
Germany
Kudos to Jean and team for their excellent work! The clear milestone structure ensures a smooth and flexible development process, allowing for continuous refinement. Great job, and thank you, Jean!
About this gig
Expert App Developer for Android & iOS
Elevate your digital presence with German-precision mobile app development for Android and iOS. I bring innovative mobile app development to life, transforming ideas into dynamic digital solutions.
Android Development:
- Proficient in Java and Kotlin.
- Focus on intuitive UI, smooth navigation, and optimal performance.
iOS Mobile App Development:
- Skilled in Swift and Objective-C.
- Commitment to aesthetic design, functionality, and Apple's standards.
Cross-Platform Mobile App Development:
- Use React Native or Flutter for time and cost-efficient, consistent cross-device experiences.
Integration & Backend
Expert in mobile app development with a strong focus on API integration, third-party service integration, and scalable database management. I build robust backends to ensure your app runs smoothly and efficiently.
My approach combines personalized service, transparent communication, and an unwavering commitment to excellence.
Ready to turn your vision into a powerful app? Lets connect and bring your mobile app development project to life!
Get to know Jean App Dev
Jean App Dev
German Mobile App Development, Website Expert
Top Rated
- FromGermany
- Member sinceJun 2020
- Avg. response time1 hour
- Last delivery6 days
Languages
English, German
Hello, I’m Jean — a German mobile app developer with 7+ years of experience in mobile app development, website development, Flutter apps, Supabase backnds, and SaaS platforms. I help startups and agencies turn ideas into secure, scalable MVPs and store-ready digital products. My work covers app architecture, UI/UX planning, API integrations, authentication, subscriptions, admin dashboards, automation, and AI-driven features. As a CTO-level freelancer, I focus on clean code, reliable performance, and European quality standards from concept to launch and post-launch support.
My Portfolio
FAQ
For which platform I will get an app?
You will get an app for both iOS and Android.
What do you need from me to start the app development?
1- A complete written description of the app
From how much I can get app and play store accounts?
Apple app developer account (99$/year) Google Play developer account ( 25$ one-time payment)
Will you publish the app on apple and android stores?
Yes, you will provide us with the app and play store developer accounts and we will publish it there for you, we will create all the resources and screenshots for your app too.
What is a ball-park quote for an app?
Each app has its own features, complexity, and required time to complete so app development can start from 100 USD to $1, 00,000 USD or more entirely depending on the required functionalities. To get your ballpark cost you can drop message on our gig & we will provide an estimated price for the app.
Reviews
118 reviews for this Gig
| (116) | ||
| (2) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
V veganernapf
Repeat Client
Germany
Jean truly exceeded my expectations, and I’m very glad I found him here. Not only did he develop and refine my ideas in a highly professional way, but he also met me at a level where everything genuinely made sense to me as a beginner. I found that incredibly professional and helpful. Thank you for the excellent collaboration—I really appreciate it.
$1,500-$2,000
Price
3 weeks
Duration
Helpful?Y 
yourcamsound
Repeat Client
Germany
I can highly recommend Jean as a programmer without any hesitation! The collaboration went perfectly from start to finish — everything was handled in a very professional manner, delivered reliably, and always on time. I’d especially like to highlight how friendly and pleasant the communication was. Jean...
$2,000-$3,000
Price
3 weeks
Duration
Helpful?Y yildizcagatay
Repeat Client
Germany
Jean's done strong work again on our second project. As before, he communicates clearly, understands what we need, and takes real initiative - like when he independently set up testing across multiple devices without being asked. Everything came in on time.
$400-$600
Price
3 days
Duration
Helpful?Y yildizcagatay
Repeat Client
Germany
We have been working on a project for over a month and it has been nothing but a pleasure to work with him: bug-free, on-time delivery; really understandable code that meets our needs; agile iterations to make the project go fast. It's been great!
$400-$600
Price
1 day
Duration
Helpful?L lennart_buenker
Repeat Client
Germany
This one was just a small job. I had two little ideas for our app and Jean did a great job again. Fast respone, and very quick delivery time. Can recommedn him for 100%
$50-$100
Price
2 days
Duration
Helpful?
Reviews
118 reviews for this Gig
| (116) | ||
| (2) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
V veganernapf
Repeat Client
Germany
Jean truly exceeded my expectations, and I’m very glad I found him here. Not only did he develop and refine my ideas in a highly professional way, but he also met me at a level where everything genuinely made sense to me as a beginner. I found that incredibly professional and helpful. Thank you for the excellent collaboration—I really appreciate it.
$1,500-$2,000
Price
3 weeks
Duration
Helpful?Y yourcamsound
Repeat Client
Germany
I can highly recommend Jean as a programmer without any hesitation! The collaboration went perfectly from start to finish — everything was handled in a very professional manner, delivered reliably, and always on time. I’d especially like to highlight how friendly and pleasant the communication was. Jean...
$2,000-$3,000
Price
3 weeks
Duration
Helpful?Y yildizcagatay
Repeat Client
Germany
Jean's done strong work again on our second project. As before, he communicates clearly, understands what we need, and takes real initiative - like when he independently set up testing across multiple devices without being asked. Everything came in on time.
$400-$600
Price
3 days
Duration
Helpful?Y yildizcagatay
Repeat Client
Germany
We have been working on a project for over a month and it has been nothing but a pleasure to work with him: bug-free, on-time delivery; really understandable code that meets our needs; agile iterations to make the project go fast. It's been great!
$400-$600
Price
1 day
Duration
Helpful?L lennart_buenker
Repeat Client
Germany
This one was just a small job. I had two little ideas for our app and Jean did a great job again. Fast respone, and very quick delivery time. Can recommedn him for 100%
$50-$100
Price
2 days
Duration
Helpful?
