STD-01100% Free
Microsoft Math Solver
Used for
Solves math problems step by step from typed or photographed questions.
Best for: Homework help in math
STDFree Study & Productivity tools
Learn, solve problems, plan tasks and organize ideas.
How to choose
Use AI to explain, quiz and organize rather than to do the work for you. Microsoft Math Solver shows steps, WolframAlpha computes exact answers, Quizlet builds flashcards and Goblin Tools breaks big tasks into small ones.
STD-02Free plan
WolframAlpha
Used for
Computes answers in math, science, statistics and conversions with exact results.
Best for: Precise calculations
STD-03Free plan
Khanmigo
Used for
Khan Academy's AI tutor that guides students without just giving the answer; free for teachers.
Best for: Tutoring and lesson planning
STD-04100% Free
Goblin Tools
Used for
Small free tools that break tasks into steps, estimate time and adjust the tone of text.
Best for: Planning and focus
STD-05Free plan
Taskade
Used for
Task lists, notes and mind maps with AI agents that plan projects for you.
Best for: Organizing projects
STD-06Free plan
Quizlet
Used for
Flashcards and practice tests, with AI that turns notes into study sets.
Best for: Memorizing for exams