AI Study Tools Compared: 15 Tools, One Honest Table

How this comparison works

Every "best AI study tools" list has the same two problems: it mixes tools that do completely different jobs, and its prices are a year out of date. This table does neither. Each tool is classified by what it actually is, prices were checked in August 2026 against each vendor's own pricing page (or marked when they were not), and we state plainly where each tool is the wrong choice — including ours.

One disclosure up front: Apex Vision AI is our product. It is in the table on the same columns as everyone else, and the "skip it if" column applies to us too.

The comparison: 15 AI study tools

Prices verified August 2026 from vendor pricing pages where a figure is shown; "varies" means the vendor does not publish a single price. Annual-billing prices are marked, because "$5.42/mo" charged as $64.99 up front is not the same commitment as $7.99 charged monthly.

Which type of tool do you actually need?

The single most useful question is not "which tool is best" but "which job needs doing". The categories genuinely do different work:

• General assistants (ChatGPT, Claude) are the best explainers and the best writers, and they are blind to your coursework. Everything must be pasted in, and diagrams and answer choices get lost on the way.
• Answer libraries (Chegg, Brainly) are unbeatable when your exact textbook problem is already solved, and useless when it is not. Their value is coverage, not intelligence.
• On-page assistants (Apex Vision AI, QuizSolver, CanvasPass) read the question where it already is. That removes the copy-paste step and keeps the full context — the trade-off is that they are built for coursework, not open-ended conversation.
• Single-subject tools (Photomath, Mathway) go deeper on maths than anything general, and stop at maths.
• Memory tools (Quizlet, Knowt) are for retention, not understanding. No answer engine replaces spaced repetition before an exam.
• Writing and source tools (Grammarly, NotebookLM) improve work you have already done rather than answering questions.

Most students who study seriously with AI end up with one tool from two or three different rows — an explainer, a memoriser, and something that works where their coursework lives.

The evaluation framework

Five questions separate a tool worth paying for from a subscription you will cancel in week three. They are the same five we would ask about our own product:

1. Does it see your actual question? A tool that reads the page — options, diagrams, figures — starts with more information than one that receives pasted text.
2. Does it show its working? An answer with no method is unusable once and uncheckable always.
3. Is the free tier big enough to judge it? Five questions a week is not an evaluation; it is a teaser. You need a real week of coursework.
4. Is the advertised price the real price? Check whether "per month" means billed monthly or one annual charge.
5. What does its marketing say about its intent? Tools advertising stealth modes and proctoring evasion are telling you what they expect you to do with them — and what your institution will conclude if you are caught with one installed.

Where Apex Vision AI fits — and where it does not

Since this is our table, here is our own row held to the same standard. Apex Vision AI is the right choice when your coursework lives in a browser LMS and you want explanations with the working shown, across subjects, with mobile apps on the same account. It is the wrong choice if you need unlimited volume at the lowest possible price (QuizSolver's unlimited annual plan is cheaper), if you only ever need maths from a paper textbook (Photomath is better at that), or if what you actually need is memorisation (use Quizlet or Knowt, honestly).

The free plan is 30 questions a day with no card, which is deliberately enough to test it against a real week of assignments before deciding anything.

Frequently asked questions

Sources: vendor pricing pages retrieved August 2026 — Chegg, QuizSolver AI, CanvasPass, Brainly; Quizlet and Photomath pricing from published 2026 pricing round-ups where vendor pages block automated retrieval; Apex Vision AI pricing page. Detailed head-to-heads: QuizSolver, CanvasPass, Brainly, Chegg, Photomath.