SDK Update asap

The goal of this project is to update our SDK which is used to deliver creative, interactive ads into mobile applications. On a high-level, the update consists of a) updating to meet the latest requirements of current OS (both iOS and Android) API, b) implementing some new features on top of the existing SDK and c) verifying the expected functionality. Please read the description below for more details.



YOC has developed a programmatic advertising platform (SSP) – VIS.X – to trade publisher ad inventory in real-time and display creative, rich media ads on publisher websites.

Towards publishers integrating with the platform it provides HTTPS-based APIs to request and deliver the ads. The ad code is being delivered as a HTML mini-website incl. CSS and JS. Once rendered in the web browser it will display the ad creative and perform ad tracking and measurement.

A sample site with an video ad can be found here (scroll down to see the ad):

[login to view URL]



The implementation of ads in native mobile applications on iOS and Android requires a SDK to request, display and perform tracking of ads. YOC has built such a SDK in the past, however it was not updated for the last few years. The last release of both iOS and Android SDKs was around mid 2015 and was supporting the then-current iOS and Android versions.

The purpose of the YOC SDK (compared to other ad SDKs) is not only to display standard banners and interstitials (a.k.a. pop-ups). It has also the ability to show rich media, interactive or video ad formats. A description of the possible formats are shown here:

1. YOC Understitial Ad: [login to view URL]

2. YOC Inline Video Ad: [login to view URL]

3. YOC Mystery Ad (de-facto interstitial): [login to view URL]

4. YOC Mystery Scroller - a banner that sticks to the bottom of the page and reacts to scrolling events within the app/browser: [login to view URL]

The SDK interacts with other similar SDKs to perform mediation, i.e. when an ad call of a given SDK A did not return a successful result (i.e. an ad that can be served) then SDK B had to be called. This required both SDKs to implement a common interface and pass calls along to each other. In this regard, the existing functionality must be tested and checked whether the API of the important mediation SDKs has changed.

The expected functionality, such as requesting and displaying ad formats, and the request mediation between YOC and third-party SDKs, must be ensured and proven in a demo app. An additional important factor is, that the SDK must not crash or delay the parent application, even if problems, network errors or timeouts occur. Although this behaviour is already assumed to be implemented, verification needs to be done.

Required Skills


- 3+ years of experience in mobile application development on iOS and Android platforms

- At least one successful project related to building a SDK / library for native mobile applications

- Experience in the field of digital advertising and know-how about the general workflows of ad requests/responses

About Us


YOC is a pioneer and leading independent provider of data-driven mobile advertising solutions in Europe.

With our long-standing expertise, we have created a marketplace for innovative and non-intrusive digital ad formats and deliver them across all programmatic and direct trading channels. With our pioneering technology we aim to operate qualitatively at the top of the advertising market and deliver better advertising experiences to everyone. We have developed a unique and proprietary platform VIS.X® to cover the full potential of effective programmatic advertising.

Skills: Android, iOS Development, Java, Mobile App Development

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About the Employer:
( 0 reviews ) Berlin, Germany

Project ID: #22222019

38 freelancers are bidding on average €15952 for this job


Hi there! I've read the details you mentioned and I'm interested in working on this app at very fair low cost with great quality! If you give us your few minutes for the chat then we can discuss some important points More

€10000 EUR in 45 days
(342 Reviews)

Hi there, We reading your requirements about the SDK which you want to add new features & functionality to be implement in existing existing SDK which is not update from 3 years and also want us to test the existing fu More

€10000 EUR in 40 days
(44 Reviews)

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€75000 EUR in 90 days
(24 Reviews)

Hi, I am certfied android and ios developer with 7+ years of professional experience in the feild and familiar with latest technologies from lastest android and ios SDKS and i can confidently say that i can update you More

€15882 EUR in 50 days
(65 Reviews)

Thanks for project posting, we have done numerous sdk and mobile apps projects over the years. Having a great skilled team in house we are very confident to get a well designed website for you as per your specs. Let’s More

€19411 EUR in 75 days
(35 Reviews)

Hi, We are a team of developers here with android and ios native expertise. We can work a full-time basis for this ads SDK upgrade task. Let's discuss this in detail. So I can share a complete breakdown. [ My Por More

€10000 EUR in 90 days
(135 Reviews)

Hello, I have 6 years of experienced on mobile application ( iphone/ ipad+ Android ) and App admimn with development web services where admin can manage the app from backend I have developed the TAXI apps, google More

€15000 EUR in 7 days
(210 Reviews)

Hi there, I'm quite interested to work with your team. I have got the relevant experience. Regarding SDK experience, We have worked with a Startup named as Kustomer. Developed SDK for them. Open Source: https://git More

€15000 EUR in 7 days
(32 Reviews)

Hello, I've reviewed your job description very carefully and got the idea on what you are looking for. I can complete this project and also can start it quickly. I am a Mobile developer with 7+ years of experience wi More

€10000 EUR in 7 days
(104 Reviews)

Hello YOC, I am an Android and iOS expert with 10 years of experience, I am good at what I do and I think I am the best fit for this job please message me and we can discuss it in detail regards

€20000 EUR in 30 days
(138 Reviews)

Hi, We are expert in designing as well in development. We will provide you quality of work. We will provide you our [login to view URL] want long term relationship with you. Please choose us and provide a chance to work with y More

€15000 EUR in 7 days
(22 Reviews)

Greetings, I am very thankful for this opportunity. It’s really exciting that we have similar kind of 6+ Year expertise and worked more than 200 apps Understanding: I have gone through your requirement and understan More

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(147 Reviews)

Hi, Greetings! To let you know about ourselves, our team has over 15 years of working experience in web design and development. We are working since long time and have developed many websites and mobile applications. More

€20000 EUR in 45 days
(17 Reviews)

Hi, Greetings of the day! I read your requirement for the App development! I am leading India based trusted mobile and web application development company having more than 10 years of experienced in creatin More

€15984 EUR in 9 days
(49 Reviews)

Hi, We can definitely update, enhance and test your SDK. We are an ISO ISO9001:2015 certified company and have completed many projects successfully on freelancer and also have been in the software development busines More

€20000 EUR in 30 days
(11 Reviews)

Hi. I just read your project description carefully and I understood almost your requirement. I have over 5 years of experience in mobile development iOS/Android but actually digital advertising field no. But I'm fast l More

€15000 EUR in 7 days
(7 Reviews)

Hi, I'm a talented developer for iOS, Android and have 11.2 years full time development experience. I have already developed a great number of various applications, namely on-demand services, location-based apps, s More

€10000 EUR in 7 days
(22 Reviews)

Hello I read carefully your project description The main task is to update your ad SDK so that it can run smoothly on the latest IOS and android systems I am sure I can complete this project with satisfied quality I am More

€15000 EUR in 30 days
(48 Reviews)

Hello Sir, Yes we will update the SDK ASAP. I have read your requirement and understood that you are looking for a Mobile Application Developer to Update SDK ASAP. I have carefully read all the points which you have More

€20000 EUR in 90 days
(10 Reviews)

We are a 7+ years old mobile app development and services company. From our global delivery center in India, we have helped several customers address their problems by offering these solutions in the mobile application More

€15000 EUR in 45 days
(15 Reviews)