ELLA which stands for E.nhanced L.earning L.evel A.lgorithm is a simple yet powerful Adaptive Learning-as-a-Service API solution. ELLA, a single-call stateless RESTful webAPI, outputs level adjustment recommendations for each of your learners in order to help you personalize their learning flow. You can easily embed ELLA in your mobile or desktop learning application or game to enhance your learners' experience. Based on your learners' scores, ELLA tells you when to make things easier or more challenging for an optimal learning. You keep the full control on how you integrate ELLA's level adjustment recommendations based on your teaching method and learning solution design.