For SAT-prep academies & schools

The whole SAT program, measured and run in one place.

Diagnostics, mock tests, homework, parent reports, and a question bank of 6,000+ tagged items. Every mock is scored by an ability model, and every result becomes a diagnosis and a plan. Delivered under your academy's own name.

$30 per active student·Free for nonprofit schools·No setup fee

A trusted partner and provider to SAT academies and tutors across Korea

Vindica SAT SenecaMEASUREMENT BRAIN 6,000+QUESTIONS LOADED RaschEQUATED SCORING LiveCLASSROOM Your brandWHITE-LABEL

Under every tool, one measurement brain.

Seneca keeps an honest read on where each student actually stands, then puts it a question away. Ask in plain language and it answers from your own roster, not the internet.

Seneca's Read

It finds the cause, not the symptom.

Most tools count what a student got wrong and hand back the same topics. Seneca separates the skill that is actually failing from the one that only looks like it, and names the cause the score depends on.

Olivia Yoonon track
1380▲ 60 this month
Info & Ideas92
Advanced Math78
Expression58
Vocabulary40
Looks likeReading misses, scattered
Actual causeVocabulary in context
Instant AI assistance

A second teacher who has read every student.

Ask Seneca in plain language and it answers from your own roster: who is about to stall, what to cover tomorrow, which set to assign to whom. It drafts, you decide.

Section A struggled with Q12 today. What should I do tomorrow?
SenecaSix of twelve chose the everyday meaning of "novel." That is a vocabulary-in-context gap, not a reading gap. I have drafted a 10-minute second-meaning set for the four who missed it. Assign it before class?

Five tools. One measurement spine.

Most academies stitch a program together from six apps that never talk to each other. Here, every tool reads from the same measure of each student, so a mock score, a homework set, and a parent report all mean the same thing.

Rasch-equated mock tests

A flat-curve mock can't tell a lucky day from real growth. Every Vindica mock is scored with an ability model, so a 1380 means the same thing on every form and a gain is a gain. Most platforms won't tell you how they score. This is how.

goal 1500 1120 1380 mt01 mt02 mt03 mt04 mt05 mt06

Run it live, review it together

Students join with a code on their own device, in the room or on a Zoom or phone call. No screen-share: you drive, and every screen follows, with answers landing as they commit. Run live practice from a set you build, or pull up a finished mock or assignment and review it with the class question by question, with Seneca's note on every answer and its traps.

Live practice Mock review Assignment review
Reviewing with classcode 4F2A
Q12 · Words in context
Seneca's note: the answer turns on the second meaning of "novel," new rather than a book. The trap is choice D, the everyday meaning.

Homework from the miss-pattern

No generic worksheets. Seneca drafts each student's next set against the skills their data shows lowest, each with a mastery estimate and a confidence level. Approve in a tap, or let it run.

Lucas KimApprove ✓
Seneca · drafted from diagnosis · 45 questions
Words in contextmedium22 items
53% mastery · conf 59%
Boundarieseasy23 items
41% mastery · conf 59%

Parent reports that cite the number

Every sentence traces to a number the student produced. Drafted from the data, held for your review, sent in your name.

Weekly reportOlivia Yoon · Section A
Score

1380, up 60 this month. On pace for her 1500 goal by the fall test.

What moved

Vocabulary in context, 40 to 58 mastery after three targeted sets, her single biggest drag on reading.

What Seneca sees

The rest of her misses are pace, not skill. She answers correctly given time, but runs 78s a question against a 70s target and leaves points on unfinished ones.

Next

Timed reading modules. Recheck at Mock 7.

Held for review · drafted by Seneca, sent in your name

6,000+ questions, vetted and loaded

Not a scrape, not an AI dump. Original, Bluebook-faithful items put through a multi-stage review, tagged by skill, ready to assign on day one. Bring your own on top, and see per-question analytics on what your students really miss.

SAT questions, every one tagged6,000+
Full-length, Bluebook-style mocksIncluded
InferenceTransitionsWords in contextAlgebra+9 more

Not a chatbot. A measurement loop.

A chatbot answers whatever a student asks and forgets them by the next question. Seneca does the opposite: it measures where each student actually is, prescribes the one thing to fix next, and checks at the following mock whether it moved. Then it goes again.

Diagnose

Find the real weak spot

Every diagnostic and mock produces one ability estimate per domain, so you work on the real bottleneck instead of guessing at it.

Treat

Prescribe the fix

The teacher assigns targeted practice and live review aimed at exactly that domain, and the platform tracks it through to completion.

Measure

Prove it moved

The next mock re-estimates that same domain, so you see whether the score actually moved. Then the loop starts over.

The loop runs again at every mock.

Why not just use ChatGPT?

For explanations, use it. ChatGPT is a good tutor's mouth. What it cannot be is the memory, the measurement, and the accountability a program runs on.

A chatbotSeneca
A chatbot"What's my score?"A confident number grounded in nothing.
Seneca"What's my score?"An equated score from real forms that means the same thing on every test.
A chatbot"Are these questions good?"It writes new ones of unknown difficulty, sometimes mis-keyed.
Seneca"Are these questions good?"A vetted bank where each item's difficulty and skill are measured against real students.
A chatbot"What do I keep missing?"It forgot the last session.
Seneca"What do I keep missing?"A months-long record of the exact patterns behind the misses.
A chatbot"Why am I stuck?"It lists the questions you got wrong.
Seneca"Why am I stuck?"It separates the skill that is failing from the one that only looks like it.
A chatbot"How is my class doing?"It talks to one student at a time.
Seneca"How is my class doing?"The roster, the reports, and the room's answer split, for the teacher.

In their words.

Directors, instructors, and students at SAT academies and tutoring studios across Korea. Names changed, words theirs.

Admin time & insight

"Report night used to be four hours of copy-paste. Now the per-student numbers are already written up, so I spend that time reading what actually changed instead of assembling it. It flagged two kids who had quietly stalled before I would have noticed."

KC Kevin C.Director, founding SAT academy
Training

"New instructors used to need a full term to calibrate. Now they read the same ability estimate I do, so a 1400 means the same thing across the whole room."

HS H. SeoLead instructor
Accuracy

"I could watch my reading score actually move between mocks instead of bouncing around at random. Seeing it hold at the higher number is what kept me going."

MS MinseoStudent, Grade 12
Insight

"It stopped handing me random sets. Every week it is the exact thing I keep missing, so practice finally feels like it is going somewhere."

JW JiwonStudent, Grade 11

Questions academies ask.

Is there a setup or onboarding fee?

No. You import your students and run your first mock the same afternoon. No setup fee, and no annual contract.

Do you charge per test or per mock?

No. $30 per active student covers unlimited mocks, practice, homework, and reports. Your bill does not change because a student took another test.

How is this different from a test-hosting platform?

Those host tests. VindicaOS scores them with an ability model and tells you the one domain to work on next for each student, then checks at the next mock whether it moved.

Can we run it under our own brand?

Yes. Your name, your color, your domain, at no extra cost. Students and parents see your academy, not us.

How is the quality of the questions?

High, and we are particular about it. Every item is original, written to real Bluebook difficulty and format, and put through a multi-stage authoring and review process before it ever reaches a student. That is closer to how a testing organization builds items than to a scrape or an AI dump. Each one arrives tagged by skill, and you can layer your own questions on top.

We're a nonprofit school. Is it really free?

Yes. The same platform, no cost, after a light eligibility check.

Is our students' data safe?

Yes. Each academy's data is isolated at the database level, encrypted in transit and at rest, and never sold. You own it and can export or delete it at any time, and we'll sign a Data Processing Agreement. See how we handle data.

See it for yourself.

Explore the live demo: a real, sandboxed academy you can click through, no card and no trial to expire. When you are ready, talk to us about a pilot. $30 a student, free for nonprofit schools.

Solo student, not an academy? Check out FORGE SAT, built on the same engine that powers VindicaOS.