The 70-357 exam, officially titled Developing Mobile Apps, is the Microsoft exam you pass to earn the MCSA: Web Applications (legacy / retired) certification, a credential at the Associate level. Passing it confirms the skills defined in the official exam outline, and it is associated with related credentials such as MCSA: Web Applications.

The 70-357 exam includes Approximately 40–60 questions and gives you 150 minutes to finish them. That is a tight pace per question, so get used to reading each stem once, flagging anything uncertain, and moving on rather than getting stuck. Running timed practice tests in the Fast2test desktop or online test engine is the most reliable way to build that rhythm before exam day.

The passing score for the 70-357 exam is 700 (on a 1000 scale), and the official registration fee is USD 165 (historical, varies by region and date). Keep in mind that a failed attempt means paying USD 165 (historical, varies by region and date) again in full to retake it, so book your slot only when your scores on Fast2test practice tests sit consistently above the passing line.

Microsoft lists the following prerequisites or eligibility notes for the 70-357 exam: No strict prerequisites; intended for developers with experience in HTML5, JavaScript, and mobile application development concepts.. Requirements can change over time, so confirm the details on the official exam page at Microsoft's official site before you register.

You can register for the 70-357 exam through the official channels below:

• Microsoft Certification Dashboard
• Pearson VUE Microsoft Exams

The exam is delivered in the following format: Online proctored or authorized test center (historically via Pearson VUE). Choose a date that leaves you enough time to work through the full 55-question practice set first.

Microsoft recommends the following training resources for 70-357 candidates:

• Microsoft Learn (Legacy exam training resources)
• UWP and Windows App Development learning paths

Official courses build the theory, and the 55 practice questions from Fast2test help you turn that theory into exam-ready speed and accuracy.

Yes. Fast2test offers a free PDF demo of the 70-357 material, so you can check the question style and answer quality before purchasing. Every purchase also includes 365 days of free updates, and if your product expires you can extend the update service at a 50% discount from your member zone.

Your purchase is protected by a 100% Money Back Guarantee with clear conditions: if you take the corresponding 70-357 exam within 60 days of purchase and do not pass, you can apply for a full refund. The candidate name must match the payer name, and you need to submit a scanned exam enrollment slip together with the official Score Report PDF within 2 days of taking the exam; claims are processed within 7 days. Sitting the exam within 3 days of purchase, downloading without taking the exam, free materials, and expired orders are not covered. If you would rather not take a refund, you can exchange your order for two free exam products of equal value and keep the update service on your original purchase.

Delivery is instant: your download links are emailed within one minute of payment, and you can also download directly from the website. If nothing arrives within 2 hours, contact customer service and check your spam folder. There is no limit on how many computers you can install the material on.

The 70-357 exam blueprint is divided into 5 domains, starting with Design and develop mobile apps; Implement application functionality; Deployment and security. For the complete domain-by-domain breakdown, see the Exam Topics section above — it lists every topic the current outline covers.