AI homework helpers have gotten scary good. The question isn’t whether they work — it’s whether they’re actually helping you learn or just doing the work for you.
We tested 9 tools across math, science, history, essay writing, and coding to find which ones actually make you smarter.
Quick Comparison
| Tool | Math | Science | Essays | Coding | Teaches? | Free | Price |
|---|---|---|---|---|---|---|---|
| Duetoday | ✅ | ✅ | ✅ | ✅ | ✅ Yes | Generous | Free / $9mo |
| ChatGPT | ✅ | ✅ | ✅ | ✅ | Depends | Limited | $20/mo |
| Photomath | ✅ Best | ❌ | ❌ | ❌ | ✅ | Limited | $9.99/mo |
| Wolfram Alpha | ✅ | ✅ | ❌ | ❌ | ✅ | Limited | $7.99/mo |
| Khanmigo | ✅ | ✅ | ✅ | ✅ | ✅ Best | Free | Free (Khan) |
| Socratic | ✅ | ✅ | ❌ | ❌ | ✅ | Free | Free |
| Perplexity | ❌ | ✅ | ✅ | ❌ | ❌ | Yes | $20/mo |
| GitHub Copilot | ❌ | ❌ | ❌ | ✅ Best | Partial | Student free | $10/mo |
| Grammarly | ❌ | ❌ | ✅ | ❌ | Partial | Limited | $12/mo |
What Makes a Good AI Homework Helper?
The best AI homework tools don’t just give you the answer. They:
- Explain the reasoning step-by-step
- Ask questions to guide you to the answer
- Connect concepts to what you’ve already learned
- Identify gaps in your understanding
- Test your understanding after helping
Tools that just output answers are academic integrity risks and terrible for long-term learning.
1. Duetoday — Best All-Subject AI Tutor That Teaches
Duetoday’s AI tutor is designed to help you understand, not just get the right answer. You can paste a homework problem and instead of getting a direct answer, you get:
- An explanation of the relevant concept
- Guided questions to help you work through it
- Step-by-step breakdown when you get stuck
- Related flashcards generated from your homework topics
The key feature: your AI tutor knows your notes. If you’ve taken notes on photosynthesis in Duetoday, when you ask a photosynthesis question, the AI tutor references your own notes in its explanation. It’s personalized.
Best for: Students who want homework help that connects to their study materials.
2. Photomath — Best for Math Step-by-Step
Photomath is incredible for math. Point your camera at a handwritten or printed math problem and it solves it with a full step-by-step explanation. It covers:
- Arithmetic and pre-algebra
- Algebra and linear equations
- Calculus (derivatives, integrals, limits)
- Trigonometry
- Statistics
The explanations are clear and pedagogical — it shows you the method, not just the answer.
Limitations:
- Math only
- Word problems are harder
- Some calc/stats problems still trip it up
Pricing:
| Plan | Price |
|---|---|
| Free | Basic solutions |
| Plus | $9.99/mo — full step-by-step |
| Annual | $39.99/yr |
3. Wolfram Alpha — Best for STEM Problem Solving
Wolfram Alpha is a computational knowledge engine. It doesn’t explain things conversationally — it computes answers with full working.
Exceptional for:
- Calculus (derivatives, integrals, series)
- Linear algebra (matrix operations, eigenvalues)
- Physics formulas
- Chemistry (molecular structures, equations)
- Statistics
Not great for:
- Essays or reading comprehension
- Conceptual questions
- Anything that requires judgment
The free tier gives answers. The Pro tier ($7.99/mo) gives step-by-step.
4. Khanmigo — Best AI Tutor for K-12 Learning
Khanmigo is Khan Academy’s AI tutor and it’s specifically designed to teach, not just answer. It uses the Socratic method — asking you guiding questions rather than giving direct answers.
If you get a math problem wrong, Khanmigo doesn’t just give you the right answer. It asks: “What formula do you think applies here?” and walks you through the reasoning.
It’s free if you have a Khan Academy account. The catch: it’s primarily designed for K-12 content, so college-level material has gaps.
5. Socratic by Google — Best Free App for Visual Learners
Socratic is Google’s free homework help app. Point your camera at a problem or type it in, and it shows you:
- Explanations from the web
- Step-by-step solutions
- Video tutorials (mainly from Khan Academy and YouTube)
- Visual diagrams
It’s not as deep as ChatGPT but it’s completely free and works for most high school and intro college subjects.
6. ChatGPT — Most Versatile (With Good Prompting)
ChatGPT can help with virtually any homework topic. The quality depends heavily on how you prompt it.
Homework helper prompts that work:
- “Explain this concept to me like I’m a beginner, then give me an example problem to practice.”
- “I tried solving this problem and got [answer]. What did I do wrong?”
- “Help me outline an essay on [topic]. Don’t write it — just give me the structure and key arguments.”
The risk: If you just ask ChatGPT to solve your homework, it will. This is great for checking work; it’s bad for learning.
Free tier: GPT-4o with rate limits. Sufficient for most homework help.
7. Perplexity — Best for Research Questions
For research-heavy homework (history essays, current events, scientific explanations), Perplexity is excellent. It gives cited answers with sources — so you can verify information and use it as a research starting point.
Not good for math or problem sets. Excellent for factual/research questions.
8. GitHub Copilot — Best for CS Homework
GitHub Copilot is an AI pair programmer built into code editors. For CS students, it’s the best tool available — it autocompletes code, explains what code does, and suggests fixes.
Free for students through the GitHub Student Developer Pack.
9. Grammarly — Best for Essay and Writing Help
Grammarly isn’t an AI tutor — it’s a writing assistant. It catches grammar errors, improves sentence structure, checks for clarity, and flags potential plagiarism (paid).
For writing-heavy subjects, Grammarly is worth using. It won’t help you understand concepts, but it will make your essays better.
Free tier is useful. Paid ($12/mo) adds tone suggestions, full rewrites, and plagiarism check.
Avoid These Homework AI Patterns
| Bad Pattern | Why It’s Bad |
|---|---|
| Submitting AI-generated essays directly | Academic dishonesty, also you learn nothing |
| Using AI to solve every problem without trying | Destroys problem-solving skills |
| Relying on AI without verifying answers | AI makes mistakes, especially in math |
| Using AI instead of reading the source material | You miss context that exams test |
Good pattern: Use AI to get unstuck, to check your work, and to understand concepts you couldn’t grasp from the textbook.
The Best Homework Helper Combination for Students
| Subject | Primary Tool | Backup |
|---|---|---|
| Math | Photomath | Wolfram Alpha |
| Science/STEM | Wolfram Alpha | ChatGPT |
| Essays / writing | Duetoday AI tutor | ChatGPT |
| History / research | Perplexity | ChatGPT |
| CS/coding | GitHub Copilot | ChatGPT |
| All subjects + flashcards | Duetoday | — |
