Question: I need a platform that helps create customized practice exams and assessments for students and teachers.

PrepAI is a broad question generation service that uses AI and machine learning to generate high-quality question papers rapidly. It can handle a range of question types, including multiple-choice, fill-in-the-blank and higher-order thinking questions. The service offers instant quiz generation, online tests with automated grading, and multiple question paper sets, and is geared for educators and ed-tech companies who want to make it easy to create assessments.

Another option is Conker, an AI-based quiz and formative assessment generation tool for schools. It lets you create quizzes with different question types, and it comes with more than 1,000 ready-made, K12 standards-aligned assessments. Conker can be integrated with common learning management systems like Canvas and Google Forms, and it's got built-in read-aloud technology to help students with accessibility issues.

Quizbot is an AI-based question generator that lets you create tests and quizzes from a variety of sources, including PDFs, Word documents, videos, images, web links and audio files. It can handle different question types and can generate questions based on Bloom's Taxonomy. Quizbot also comes with a plagiarism checker, AI rewriter and AI content detector, which makes it a good option for creating practice questions for standardized tests.

If you want a more complete learning environment, Pear Deck Learning offers a suite of tools including Pear Assessment, Pear Deck, Pear Practice and Pear Deck Tutor. The tools offer customizable assessments, immediate feedback, differentiated instruction and gamified practice to help keep students engaged and teachers productive. It's designed for a range of educational needs and can be integrated with common tools like Google and Microsoft.