Mobile App Development (Apple & Android) in React Native


Asperion is a leading software supplier who creates online software for enterprises.

The online software portfolio includes CRM, Bookkeeping, Invoicing and supply chain applications. The headquarters based in The Netherlands near the capital city of Amsterdam.

There is also a mobile app which has a focus on easy tasks for clients of the software whilst ‘on the road’. This project is to replace the current mobile app with a completely new one supplying more functionality to our clients.

The Mobile App (requirements)

(The complete list of requirements, functions, designs, API documentation etc, etc.. will be provided after the first selection of capable contractors. This is a brief summary)


- Mobile App framework for both Apple and Android devices . (Phones and Tablets)

- React-Native

- An app scheme for deep linking

- Login using oAuth 2.0 PKCE-flow (Existing API Identity Server Asperion)

Tokens must be stored in Keystore (Android) or Keychain (Apple)

- Data communications using existing REST API.

- App design will be made in Figma and provided by us. (Implementation of design needs to be ‘pixel-perfect’)

- Contractor is not allowed to use any pre-existing IP and third-party software, unless it is open source and approved upfront by Asperion.


- Mobile Scanner (Includes Edge detection / Keystone Correction / Cropping & image optimization / Multipage scan / Save to PDF and upload to API endpoint)

(Example : [login to view URL])

- List and view of Debtors / Creditors / Invoices / documents (read-only)

- Download and preview PDF documents (invoices)

- Graphical Overview using charts of financial results from bookkeeping

- Receive push notifications (based on SignalR service)

- Approval of invoices (to be paid)

- Create / Update / Insert Sales Invoices

- Create / Update / Insert Relations (Debtors and Creditors)

- Approve purchase invoice booking proposal (from our OCR engine, also API based)

- Register (CRUD) hours working and traveled distance

- Viewing and matching bank statements

.. and more functions and features to come..

We are looking for a long term partner to build and maintain this new app. A partner that thinks along with us and advises us in order to arrive at the best solution.

As we expand the functionality of our online application and API endpoints, we need a partner who can extend the mobile app with functions associated with these new features.

We build the new app in predefined phases and build more functions and options on an ongoing basis. We intend to release new versions in short sprints.

You will be working closely with our back-office development teams, who are making the API endpoints and will be assisting in the process.

If you are interested in the project and looking for a long term assignment, please leave u an message supplying us with your portfolio.

After the first selection we will provide some more details, API documentation, designs and the planning of the development phases and ask for quotations to make a final selection.

Contractor agrees that the Freelancer.com Optional Service Terms will apply to this assignment. Payment will be done via Freelancer.com Escrow. The payment will be released after completion of each phase of the project.

Compétences : Android, Mobile App Development, iPhone, React Native

en voir plus : android mobile app bidding apple, app development apple android reviews, mobile app development iphone android, mobile app development with react native, react native apps, swiftui vs react native, react native vs native performance, flutter vs react native, react native vs swift 2019, react native dev, react native vs android studio, mobile app development apple android, Android Mobile app development, urgent android iphone mobile app development, mobile app development project android, Mobile App development (iOS and Android), mobile app development ios and android, android mobile app development cost, native mobile app development, learning mobile app development: a hands-on guide to building apps with ios and android

Concernant l'employeur :
( 6 commentaires ) Naarden, Netherlands

Nº du projet : #27387499

142 freelancers are bidding on average €13101 for this job

(685 Commentaires)
(70 Commentaires)
(129 Commentaires)
(64 Commentaires)
(36 Commentaires)
(123 Commentaires)

SENIOR NATIVE IPHONE/ANDROID APP DEVELOPER WITH 6+ YEARS EXPERIENCE: Hello, Greetings for the day! Native apps are better than scalability so I suggest to go with Native apps I will surely help you to develop a nat Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 70 jours
(64 Commentaires)

Hello, I have gone through your requirement of app development with scanner, Invoicing, Book keeping, etc. I have already developed similar features based applications so I am sure to provide you best solutions. I am Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 40 jours
(51 Commentaires)
(131 Commentaires)
(16 Commentaires)
(24 Commentaires)

Hi. I have 6+ years of experience in Mobile (iOS/Android/Kotlin) app development and 6+ year Exp in Web development(PHP,Mageto .NET, Firebase,JAVA,HTML5). I can use Native/Xamarin/Ionic/PhoneGap/Flutter for mobile deve Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 90 jours
(88 Commentaires)
(7 Commentaires)

Hello, Me and my team can cater all your mobile app needs to expedite your business with an excellent ROI. I can certainly develop and deploy you a mobile app (iOS+Android) in react native. I can assign you a dedicate Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 45 jours
(43 Commentaires)

Hi, I hope you are doing well and your loved ones are safe! Amid the ongoing COVID-19 pandemic Thanks for sharing your project requirements with us. I have checked the requirements and I would like to share my unders Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 90 jours
(41 Commentaires)

Hello! I'm developer with extensive experience. I lead the mobile development team. We have a lot of expertise in following types of Applications: Social Network (Android + iOS + Web), Messengers, Highload and scalab Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 90 jours
(10 Commentaires)

Hi. We can do your app in Native way if you would like. We Don't work with React. Web and Mobile development (iOS & Android) is the main activity of my team. We have 7+ years of experience, 57+ successful projec Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 7 jours
(71 Commentaires)
(28 Commentaires)
(11 Commentaires)

***** Mobile App Expert ***** Hi there, I hope you are doing good!!! I have gone through your requirements regarding "Mobile App Development (Apple & Android) in React Native" project and found this to be a perfect Plus

%bids___i_sum_sub_35% %project_currencyDetails_sign_sub_36% EUR en 40 jours
(93 Commentaires)