Sigma Prep
Free plan · From $49/moActively maintained
≈ 658visits/mo
Use not read yet · estimate, read Oct 16, 2026
- For
- students preparing for the SAT math section who want to raise their score
- Price
- Free plan · From $49/mopricing page, read Oct 17, 2026Trial & discounts: 14-day free trial · 14-day money back
- Activity
- Actively maintainedsite updated 13 days ago
- Company
- Sigma Prep LLCprivacy policy
- Used for
- find which SAT math topics cost the most points
- watch video solutions for each missed problem
- take full-length timed SAT math practice tests
- Used more than 76% of the 701 tools on its shelfINITE Atlas →
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantssigmaprep.io ↗
- HeadquartersUnited Statesper their About page
- Run bySigma Prep LLCprivacy policy ↗
- Privacy policy updated2026-10-08privacy policy ↗
These are Sigma Prep's own statements, read from its pages. We did not audit them. A line that is missing was not found on the pages we read; it does not mean the practice is absent.
- MCP serverio.sigmaprep/worksheetsverified in the MCP registry
- Stateanswers, 2 toolschecked 2026-10-17
- Address to connectwww.sigmaprep.io/api/mcp
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
- #1
Knowable
AI tutor that watches your handwritten work and provides personalized guidance for test preparation.
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No notes yet. What do you use Sigma Prep for?
Sign in to leave a noteWhat is Sigma Prep?
Serves SAT math practice: a diagnostic that finds weak topics, video solutions for missed problems, and regenerated practice questions. It is listed in the Atlas under Creative & media and made by Sigma Prep LLC.
Who is Sigma Prep for?
students preparing for the SAT math section who want to raise their score
How much does Sigma Prep cost?
Sigma Prep has a free plan; paid plans start at $49/mo, per its pricing page on 2026-10-17.
Is Sigma Prep free?
Yes, Sigma Prep has a free plan, per its pricing page on 2026-10-17.
Is Sigma Prep still maintained?
Actively maintained: site updated 13 days ago.
Who owns Sigma Prep?
Sigma Prep is run by Sigma Prep LLC, per its privacy policy (2026-10-17).
Does Sigma Prep have a free trial?
Yes, a 14-day free trial, per its pricing page (2026-10-17).
How do I cancel Sigma Prep?
In its own words (terms of service, 2026-10-17): “You may cancel your subscription at any time from the Plan & billing section of your account Settings, which opens the billing portal.”
Does Sigma Prep give refunds?
In its own words (terms of service, 2026-10-17): “Every subscription payment made during your first 14 days is fully refundable under the 14-Day Money-Back Guarantee in Section 8.”
What are alternatives to Sigma Prep?
In Creative & media, by use: Knowable.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk
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