kitio.aiQuestion AI vs Caktus AI
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Question AI has the lower starting price: about $10 a month, against $15 for Caktus AI.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Photo-based question solving
- AI math solver
- Multiple school subjects
- Step-by-step answers
- Early access to new features
- Essay writer with citations
- Maths and science solver
- Coding helper
- Flashcard maker
- AI detector
| Feature | Question AI | Caktus AI |
|---|---|---|
| Best for | Homework solver for math and other school subjects | Student AI toolkit for essays, maths, coding and studying |
| Category | Education | Education |
| Pricing model | Freemium | Free trial |
| Starting price | $9.90/mo | $30/mo |
| Free plan | Yes | No, 1-day trial |
| Made by | Question AI | Caktus AI |
| Based in | – | United States |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Question AI has the lower starting price: about $10 a month, against $15 for Caktus AI.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Monthly
$9.90/mo
- Up to 30 homework questions
- Up to 30 image-based problems
- Early access to features
Yearly
$4.90/mo billed yearly
- Unlimited problem solving
- Unlimited image uploads
- Everything in Monthly
2 plans
Monthly plan
$30/mo
- Full access
- 1-day free trial
- Cancel anytime
Annual plan
$180/yr
- Full access
- Billed once per year
- 1-day free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Question AI
- Upload a photo of a problem
- Free solver to try first
- Yearly plan has no problem limits
- Monthly plan caps questions at 30
- Accuracy claim is self-reported
- Answers can encourage copying instead of learning
Caktus AI
- Many student tools in one login
- Citations in common styles
- Covers STEM and writing
- Citations can be unreliable
- Billing complaints from some users
Which one should you choose?
Choose Question AI if you want:
- Upload a photo of a problem
- Free solver to try first
- Yearly plan has no problem limits
Watch out: monthly plan caps questions at 30.
Choose Caktus AI if you want:
- Many student tools in one login
- Citations in common styles
- Covers STEM and writing
Watch out: citations can be unreliable.
Question AI vs Caktus AI FAQ
What is the difference between Question AI and Caktus AI?
Question AI: Homework solver for math and other school subjects. Caktus AI: Student AI toolkit for essays, maths, coding and studying. Both are education tools.
Is Question AI or Caktus AI cheaper?
Question AI has the lower starting price: about $10 a month, against $15 for Caktus AI.
Do Question AI and Caktus AI have free plans?
Question AI: Yes. Caktus AI: No, 1-day trial.
Who makes Question AI?
Question AI is made by Question AI.
Who makes Caktus AI?
Caktus AI is made by Caktus AI, based in United States.
Which should I choose, Question AI or Caktus AI?
Choose Question AI if you value upload a photo of a problem and free solver to try first. Choose Caktus AI if you value many student tools in one login and citations in common styles.