Caktus

What is Caktus AI?

Caktus AI is a comprehensive AI-based learning platform designed for high school, university, and graduate students, operated by Caktus AI, Inc. It brings together academic writing, literature research, solving math and science problems, note-taking, flashcards, quizzes, and study plans under one account.

It is better suited to serve as a learning aid and a drafting area, rather than replacing students in completing and submitting assignments. Official policies prohibit academic misconduct and plagiarism; students must still understand, verify, rewrite their work, and abide by the school’s guidelines regarding the use of AI.

A one-sentence summary

Caktus AI provides specialized tools for specific learning tasks, helping students move from researching materials, creating outlines and drafts, and organizing citations, to solving problems, reviewing content, practicing, and managing their learning progress.

Number of tools and range of products

The marketing pages on the official website typically mention more than 25 different learning tools, while the current All Tools section lists 41 such options. These two figures are based on different methods of calculation, and the number of available functions may change as new tools are added, existing ones are merged, or tools are in testing mode.

Main functions

1. AI Essay Writer

The essay writer allows users to enter the topic, article type, length, and grade, as well as upload assignment requirements or reference materials. The system can generate drafts ranging from 500 words to over 3000 words, which can then be further edited in the workspace.

The available article types include argumentative essays, expository essays, narrative essays, descriptive essays, analytical essays, persuasive essays, and comparative essays. Users can export their work in Word, PDF, or Markdown format, but they must include their own arguments and course-related materials before submitting it.

2. Academic channels and citations

Essay Writer and Citation Finder allow users to search for academic materials and generate in-text citations as well as references, supporting formats such as APA, MLA, Chicago, and Harvard. The Essay page also provides a CORE search option, which facilitates the finding of papers related to a specific topic.

Officials emphasize that citations can be verified, but this does not mean that every citation corresponds accurately to the argument in question. Users must consult the original paper to check the author, title, year, page numbers, DOI, and the meaning of the citation.

3. In-depth Research and Document Analysis

Research tools are used to gather papers and notes related to a specific topic; document analysis allows for the uploading of PDF, Word, and text files, with the option to generate summaries or to assist in further writing. They are suitable for working with course readings, lecture notes, and assignment instructions.

4. Step-by-step solution in mathematics

Math Solver covers algebra, calculus, statistics, geometry, trigonometry, linear algebra, and discrete mathematics; it allows users to enter text or formulas or upload photos of problems. The solution is presented step by step, showing the formulas, the substitution process, and explanations, which makes it easy to review the solution process.

Complete interactive drawing is still part of the official plans; for now, some questions only describe the shape of the graph or its key points. Errors in image recognition, ambiguities in symbols, and complex proofs still require manual verification.

5. Science and Computer Assistants

Tools in physics, chemistry, biology, economics, history, literature, and computer science provide explanations and exercises for various disciplines. They can help balance chemical equations, analyze mechanical problems, understand genetics, debug code, or break down concepts.

6. Flashcards and quizzes

Flash Card Maker can generate between 5 and over 50 cards based on topics, pasted notes, or uploaded files; it also allows for editing, adding, and deleting cards. The learning mode keeps track of which cards have been mastered and which still need to be studied, and the sets of cards can be saved in the account.

Quiz, Practice Exam, and Study Guide can further transform the material into practice questions, timed mock exams, and structured review outlines. Automatic scoring and answers should be reviewed in conjunction with the textbook and teacher guidelines.

7. Note-taker and course materials

The Notetaker is used for creating, organizing, and reopening notes, and it also allows those notes to be utilized for flashcards, quizzes, and course-related tasks. The Document Manager, on the other hand, is used to manage uploaded and generated learning files in a centralized manner.

8. Study Planner

A study planner can keep track of the name of assignments, their deadlines, priority levels, estimated time required to complete them, and their completion status. Users can also upload or paste course outlines, and the AI will extract the tasks and create a daily study plan.

9. AI Humanizer and Detector

Humanizer is used to adjust the style of text in order to make the expression more natural, and it offers preset tones suitable for high school, university, and academic contexts; Detector, on the other hand, scans texts for AI-related characteristics. The results of detection are not proof of academic integrity, and humanization tools should not be used to circumvent school audits.

10. Visual and productivity tools

The platform also offers slides, mind maps, timelines, comparison tables, a focus timer, email functions, and translation tools. These are useful for converting research results into various learning materials, but the specific export formats and layouts should be tried out within the account.

Complete learning workflow

1. Read the assignment instructions and determine the scope within which AI use is permitted by the teacher; identify the tasks that must be completed independently.
2. Upload the course outline, lecture notes, or paper requirements so that the document processing tool can identify the topics, deadlines, and formatting rules.
3. First, use Research and Citation Finder to locate relevant materials, save the potential sources, and then open the original texts to verify them.
4. Use Thesis Generator and Essay Writer to create multiple arguments, outlines, and preliminary paragraphs.
5. Reorganize the argument based on the course material, incorporating one’s own analysis, classroom materials, and accurate citations.
6. Use Tone Analyzer, Paragraph Generator, and Bibliography to check the expression and literature formatting.
7. Convert key concepts into study guides, flashcards, and quizzes to ensure you can explain the main ideas.
8. Before submission, check the facts, calculations, citations, originality, and school policies, and keep the necessary records of your work.

Tutorial on essay writing

1. Select Essay Writer, enter a clear topic, rather than just pasting the instructions for the assignment that needs to be completed.
2. Set the article type, target word count, learning stage, and citation style, and upload the materials that may be used.
3. Search for potential papers using CORE or Citation Finder, then read the abstracts to assess their relevance.
4. After creating an outline or draft, check each section to ensure that the arguments, evidence, and reasoning are consistent with one another.
5. Open each source and verify the author, year, page number, and meaning of the original text; remove any unreliable references.
6. Rewrite the content from your own perspective, and include course concepts, examples, counterarguments, and limitations.
7. After exporting to the target format, check again the formatting, references, word count, and requirements regarding academic integrity.

Tutorials for Learning Mathematics and Science

1. Choose Math Solver or the appropriate subject assistant, enter the problem accurately, and retain the units, diagrams, and all conditions.
2. When uploading an image, make sure that formulas, subscripts, superscripts, square roots, and special symbols have been recognized correctly.
3. Try it independently first, then check the AI’s step-by-step solution to identify the specific step at which you are stuck.
4. Verify each step: formula selection, substitution, transformation, units, and the final answer.
5. Use the tool to generate a similar variant question, and solve it again without looking at the answer.
6. For proof problems, open-ended questions, and experimental results, a second verification is carried out using textbooks, calculators, or teacher feedback.

Which users are it suitable for

• High school students: Organize course materials, create flashcards and quizzes, and assist in understanding the steps involved in math and science subjects.
• University students: selecting research topics, creating outlines for papers, managing citations, and handling assignments for multiple courses.
• Graduate students: Quickly screen literature, organize annotations, and prepare reports, but still need to use specialized databases for verification.
• International students: Use translation, tone, and paragraph tools to understand the requirements of English assignments and improve their expression.
• Users preparing for exams: Convert notes into study guides, practice tests, flashcards, and schedules.
• Students seeking employment: Create resumes and cover letters, and practice common interview questions.
• Teachers and tutors: Develop examples of AI literacy, practice exercises, and teaching resources, but first check the school’s policies.

Typical use cases

• Assignments and deadlines are automatically extracted from the course outline, and a weekly study plan is generated accordingly.
• Find academic sources related to the paper’s topic, create an outline, and organize references in APA or MLA format.
• Upload lecture notes and reading materials to generate summaries, flashcards, quizzes, and review guides.
• Take photos of the math problems and check each step of the formulas and derivations, rather than just copying the final answer.
• Analyze physics, chemistry, and biology problems to identify weak areas in concepts or calculations.
• Convert complex topics into mind maps, timelines, or comparison tables to help establish a knowledge structure.
• Prepare for class discussions, presentations, resumes, and interview practice.

Product advantages

• Designing multiple dedicated entry points tailored to the specific tasks of students makes it easier to establish clear workflows compared to a general chat box.
• Writing, citation, research, problem-solving, review, and planning tools can be integrated within the same account.
• Essay Writer supports a variety of article types, academic levels, and common citation styles.
• Mathematical tools emphasize showing the steps, which helps to identify errors rather than merely providing the final values.
• File uploads allow personal course materials to be incorporated into the workflows for summaries, writing, flashcards, and quizzes.
• A study planner can analyze course outlines and schedule tasks based on deadlines and priorities.
• The web version offers localized pages in English, Spanish, French, German, Portuguese, and other languages.

Usage restrictions and precautions

• AI may generate factually incorrect information, calculation errors, misplaced citations, or overly simplified explanations, which must be reviewed manually.
• The so-called legitimate sources do not guarantee that the citation locations, page numbers, and explanations of viewpoints are entirely accurate; academic writing should refer to the original texts.
• Different schools, courses, and teachers have varying rules regarding the use of AI assistance, and rewriting the generated content does not necessarily mean it complies with the policies.
• The AI Detector can only provide probabilistic signals; it cannot confirm the author’s identity or determine whether academic misconduct has taken place.
• Humanizer should not be used to bypass detection or conceal plagiarism; the official rules explicitly prohibit academic dishonesty.
• The main pricing page, promotional pages, legal terms, and the App Store display different trial conditions and prices; it is necessary to check the checkout page before subscribing.
• The legal provisions state that exceeding the free character limit or the end of the trial period may result in an automatic upgrade; users should keep track of the trial period and the amount of content generated.
• According to the official refund policy, refunds are generally not provided for digital services purchased after purchase; it is therefore necessary to be particularly careful before making the initial payment.
• Uploaded assignments, personal notes, and research materials may contain sensitive information; unauthorized data should not be submitted.
• The public version of the iOS app is older and may have fewer features compared to the web version; therefore, it is necessary to test each version separately to assess the actual experience.

Prices and packages

As of August 21, 2026, the main pricing page on Caktus’ official website lists three subscription options: weekly, monthly, and annual. All of these options include all the features available, along with a 1-day free trial period. Subscriptions are automatically renewed, and it is necessary to cancel them before the next payment is processed.

The main pricing page states that all plans come with full functionality, but it does not specify the limits for each feature, the file size limits, or the rules regarding fair use. The actual available limits and any regional taxes are indicated on the checkout page after logging in.

Trial and price differences

There are significant differences among the various official access points available for Caktus at the moment. The main pricing page offers a 1-day free trial, while the promotional page provides 3 days of use for $1, after which the cost rises to $19.99 per month. The legal terms state that the free trial includes 550 generated words; if this limit is exceeded or the trial period comes to an end, an upgrade may be automatic.

Cancellation and refund

The weekly, monthly, and annual subscription plans are automatically renewed; canceling them usually only prevents charges from being made in the next billing cycle, it does not waive the fees that have already been incurred. Users should cancel through the account or billing management section, and keep the confirmation page or email.

The official refund policy states that refunds are not provided for digital services once they have been purchased; therefore, canceling a subscription does not imply a refund of the fees for that period. If the payment page, local consumer laws, or the rules of the app store provide different provisions, those valid terms shall apply.

Supported platforms and languages

APIs, SDKs, and GitHub

As of the time of verification, no Caktus API, developer console, Webhook, or official SDK documentation available to ordinary developers was found. The internal interfaces for the web and mobile versions cannot be considered public APIs that users can legally use.

No official GitHub repository maintained by Caktus AI, Inc. and specifically corresponding to the current product, nor any open-source license, was found. The terms of service also prohibit reverse engineering; therefore, the product should be considered a closed-source commercial platform.

Privacy and data processing

The scope of data listed in the privacy policy is broad; it includes account information, contact details, payment data, location data, device information, usage patterns, materials submitted by users, as well as any sensitive or biometric information that may be involved with certain functions. The actual data collected depends on the functions used by the user and the permissions granted.

The platform makes use of services provided by vendors in the areas of payment, cloud services, data storage, analysis, authentication, communication, and marketing; cross-border data processing may also occur. Before uploading course materials, it is necessary to remove any identification documents, grades, medical information, unpublished research results, as well as other personal data belonging to others.

Data on children and students

The privacy policy specifically addresses children under 13 years of age and commits to providing additional protection, but the use of such services by minors still requires the consent of their guardians and schools. Parents and educational institutions should further verify the practices related to data retention, deletion, advertising, and processing by third parties.

Data rights

Users who meet the criteria can request access to, correction of, restriction on, deletion of, or export of their personal data; the specific rights available depend on the region in which they reside. Deletion requests may be affected by legal obligations, dispute resolution processes, and the status of the account.

Advice on academic integrity

• First, complete your own thinking and initial attempts, then use AI to find structures, explanations, or feedback.
• Record the tools, tips, and channels used, so that it can be accurately stated when disclosure is required by the course.
• Do not submit paragraphs, formulas, code, or experimental results that you are unable to explain.
• Citations must be verified against the original paper; automatically generated references should not be submitted as is.
• Treat the output as a draft and practice material, incorporating personal arguments, classroom knowledge, and the actual research process.
• Do not use Humanizer to circumvent the AI policies of teachers, schools, or publishing institutions.
• For uncertain allowable ranges, consult a teacher or the school before submitting.

Basic information

Recommendation score

The recommendation score is 4.2 out of 5. Caktus AI covers writing, citation, research, STEM problem-solving, as well as review and learning management; its dedicated tools make it easier to create a continuous learning process compared to using a simple chat interface.

The main shortcomings are inconsistent trial periods and prices across different official websites, strict refund policies, limited support in Chinese, and the need for manual verification of AI-generated solutions and answers. It is suitable to use the trial version first to test the course before deciding to subscribe after determining the duration of subscription.

Frequently Asked Questions

Is Caktus AI free?

It is possible to browse the platform and try out some of the tools, but the full set of functions is available only through a subscription. The main pricing page on the official website offers a 1-day free trial, and the terms of service specify a limit of 550 generated words.

Will the trial period be automatically renewed?

The legal terms state that once the trial period ends or the free character limit is reached, the subscription may have to be upgraded to a paid one; this depends on the campaign involved and the payment settings. It is necessary to check the date, amount, and duration of the next charge before starting the trial.

Why are the prices different on different pages?

The main pricing, promotional offers, legal terms, and those available on the App Store may vary depending on the channel, time period, or discounts in effect. Do not assume that the old purchase prices or ad-based prices represent the current packages available to all users; always refer to the actual payment page for accurate information.

Can I write a paper with citations?

It is possible to select the type of article, its length, the learning level, as well as the citation style APA, MLA, Chicago, or Harvard, and to search through academic sources. Each citation still needs to be verified by consulting the original source.

Is file uploading supported?

PDF, Word, and text files are supported; they can be used for papers, abstracts, flashcards, quizzes, and course plans. Remove any sensitive information before uploading and ensure that you have the proper permissions for the material.

Do mathematical tools support taking photos?

It allows users to upload photos of handwritten or printed problems, along with step-by-step solutions. Before using it, it is necessary to check that formulas, subscripts, and symbols are recognized correctly.

Is Chinese supported?

The platform has capabilities for translation and processing of multilingual content, but a complete Chinese interface has not been confirmed. The quality of Chinese writing, citations, and problem-solving should first be tested using the trial quota.

Can the generated content be submitted directly?

It is not recommended. The authorities require that the output be used merely as a learning aid; users must review, rewrite, understand, and comply with school policies. Submitting content generated by AI can constitute academic misconduct.

Can AI Humanizer ensure a successful pass in the detection?

It’s not possible. AI detectors are prone to making mistakes, and no rewriting tool can guarantee accurate results; such tools should not be used to circumvent the requirements related to academic integrity.

Will I get a refund if I cancel?

Cancellation usually only prevents renewal in the next cycle; according to the official refund policy, payments for digital services are not refunded. It is necessary to choose the appropriate subscription period before making a payment and to be aware of local laws or the rules set by the app store.

Is an API provided?

No public APIs, SDKs, or developer documentation have been found. Caktus AI is currently available for end-users who are students, through web interfaces and iOS applications.

Is Caktus AI open source?

No. No official open-source repository or license was found, and the terms of service prohibit reverse engineering.

Summary

Caktus AI has evolved into a comprehensive set of tools that cover research, writing, citation, problem-solving, review, and learning management – ideal for students who wish to carry out various academic tasks within a single platform. Its most valuable use is to assist with understanding, practice, and iterative improvement, rather than replacing actual learning.

Before subscribing, it is important to carefully check the number of characters available for the trial period, the expiration date, the options for automatic renewal, and the conditions for refunds; various official websites still display different options. No matter which feature is used, fact-checking, reliance on original sources, independent thinking, and school policies should take precedence over speed of generation.