Neither WolframAlpha nor Salley offers a free trial.
WolframAlpha is designed for Academics, Professionals, Researchers, School Teachers and Uncommon Use Cases.
Pricing for WolframAlpha Starts at $5/month whereas for Salley Starts at $295/month.
WolframAlpha offers several advantages, including Depth of Content, Accuracy, Educational Value, User Experience and many more functionalities.
The cons of WolframAlpha may include a Requires Internet Connection, Complex Queries.
Salley offers several advantages, including Personalized learning approach, Offers career development guidance, Neuroscience integration, No exam pressure, Flexible learning pace and many more functionalities.
The cons of Salley may include a Limited course offerings, In beta version, No quizzes or exams, Lacks curriculum structure. and No app version