Spell is described as 'The fastest and most powerful end-to-end platform for data science, machine learning and deep learning. Spell’s infrastructure and tools allow anyone to prepare, train, deploy, and manage machine learning projects'. There are five alternatives to Spell for a variety of platforms, including Self-Hosted solutions, Windows, Linux, Online / Web-based and SaaS. The best alternative is datarobot. It's not free, so if you're looking for a free alternative, you could try H2O.ai or Dataiku. Other great apps like Spell are SAS (Paid) and Bigbox Big Lake, Data Lake Platforms (Paid).
H2O is an open source, in-memory, distributed, fast, and scalable machine learning and predictive analytics platform that allows you to build machine learning models on big data and provides easy productionalization of those models in enterprise env.
A smart enterprise data lake that powerful, faster and stay agile Transform all data, anywhere, into meaningful business insight Easy to use data lake service Enterprise-strength security Trusted by the biggest brand.