Caktus
PaidAI student toolkit with 25+ specialized tools including essay writer with real citations and math solver
What is Caktus?
Caktus is an AI toolkit built specifically for students, with 25+ specialized tools bundled into a single subscription. The headline features include an essay writer that generates essays with real cited sources, a math solver with step-by-step solutions, an AI humanizer that rewrites text to sound more natural, a flashcard maker, a research assistant that finds scholarly sources, a code writer for CS students, and tools for specific student tasks like discussion post generation and lab reports. Pricing starts at $14.99/month which positions Caktus at the higher end of student AI tools — compared to Khanmigo at $4/month or Knowt's free plan. The value case for Caktus is the breadth of specialized tools — instead of paying for ChatGPT Plus plus a dedicated math solver plus a citation tool, you get everything bundled. Caktus is used by about 3 million students according to the company. The essay writer with real citations is the standout feature — it actually produces essays with linked sources rather than hallucinated references. Students should still verify all sources before submitting academic work.
⚡ Quick Verdict
College students wanting multiple AI writing and homework tools bundled into one subscription
Budget-conscious students — at $14.99/month, Caktus is one of the pricier student AI tools
Free trial · Paid plans from $14.99/month
Limited free trial, then paid subscription required
25+ specialized tools in one subscription — essay writer with citations, math solver, research assistant
$14.99/month is expensive compared to alternatives like Knowt (free) or Khanmigo ($4/mo)
Bottom line: Caktus scores 4.2/5 — 25+ specialized tools in one subscription — essay writer with citations, math solver, research assistant.
Pricing
Free Trial: Limited trial access to test the platform before committing to a paid plan.
Paid Plans — from $14.99/month: Full access to the 25+ tool library including essay writer with citations, math solver, AI humanizer, flashcard maker, research assistant, code writer, discussion post generator, and all future tools added to the platform. Annual plans available at discounted rates.
Key Features
- Essay writer with real cited scholarly sources
- Step-by-step math solver for algebra through calculus
- AI humanizer to rewrite text naturally
- Flashcard maker with spaced repetition
- Research assistant that finds scholarly sources
- Code writer for computer science students
- Discussion post and reply generator
- Science lab report generator
Pros & Cons
Pros
- 25+ specialized tools in one subscription is strong value vs buying separately
- Essay writer produces real citations rather than hallucinated sources
- Used by 3 million students — established track record
- Regular platform updates adding new tools
- Covers both writing and STEM student workflows
Cons
- $14.99/month is expensive vs alternatives like Knowt (free) or Khanmigo ($4/mo)
- Essay writer raises academic integrity concerns at some schools
- No free plan — only a limited trial
FAQ
How much does Caktus AI cost?
Caktus AI starts at $14.99 per month for full access to the 25+ student tools. There is a limited free trial available to test the platform. Annual plans are available at discounted rates. This positions Caktus at the higher end of student AI tools — Khanmigo is $4/month, Knowt is free, and Mindgrasp starts at $5.99/month.
Is Caktus AI cheating?
Caktus produces essays, code, and homework solutions, which raises academic integrity concerns depending on how students use it. Using Caktus to brainstorm ideas, improve drafts, or check understanding is generally considered legitimate. Submitting Caktus-generated essays or code as your own work typically violates school honor codes. Students should review their institution's AI policy before using Caktus for graded assignments.
Does Caktus AI produce real citations?
Yes — this is a key Caktus feature. The essay writer generates essays with linked citations to real scholarly sources, not hallucinated references (a common problem with generic chatbots). That said, you should still click through and verify every citation before submitting academic work, since AI citation accuracy is not 100% even on dedicated tools.
Caktus vs ChatGPT for homework — which is better?
ChatGPT is more flexible and cheaper at $20/month for Plus, but it does not have purpose-built student tools. Caktus at $14.99/month has 25+ pre-built student workflows (essay writer, math solver, discussion posts, lab reports) that save time versus writing ChatGPT prompts from scratch. For heavy student use, Caktus is more efficient; for general AI help, ChatGPT is more versatile.
Can Caktus solve math problems?
Yes — Caktus includes a dedicated math solver that handles algebra, calculus, trigonometry, statistics, and linear algebra with step-by-step solutions. For more rigorous math help, MathGPT Pro and Mathos AI are dedicated alternatives at lower price points ($8.99/mo). Caktus wins on convenience (bundled with other tools) rather than pure math accuracy.
Does Caktus work for high school students?
Yes — Caktus supports both high school and college students, with tools adapted to high school subject levels. The essay writer can be tuned for different academic levels. For high schoolers specifically, Khanmigo at $4/month may be a better value since it is purpose-built for K-12 with stronger safety guardrails.
Is there a Caktus free plan?
No permanent free plan — Caktus offers a limited free trial that lets you test the platform before subscribing. After the trial, you need a paid subscription starting at $14.99/month to keep using the tools. If you need a free option, look at Knowt or Google's Socratic app.
📋 Good to know
Sign up at caktus.ai, start the free trial, and explore the 25+ tools from the dashboard.
Standard encryption. Subscription required for persistent access.
Paid plan ($14.99/mo) after trial. Annual plans discounted.
Low. Each tool is a simple form with input fields.