Repeating questions turns your diagnostic into a memory test
Same stem in a benchmarking test and a weekly drill means inflated scores and progress reports that lie. You can't tell who actually improved.
A Human-built Question Library Crafted by Veteran Test-prep Experts
Exclusive, blueprint-accurate content that stays current with every official test update to keep diagnostics spot on and practice scores predictive.
Trusted by 100+ Organisations
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The problem
The Content Problems No Brand Can Afford
Your diagnostic is in the public domain for free.
If your content comes from the released tests, Reddit threads, and reshared PDFs, exposure bias is baked into every score. Then you only measure familiarity and miss ability.
AI-generated questions published under your brand
LLM-generated content sometimes gets the surface right and the logic wrong. One flawed explanation in front of a sharp parent, and your credibility takes the hit.
The Platform
Diagnose and drill from completely separate question pools
Practice Tests
Full-length and module-level, both Blueprint-accurate and built to diagnose.
Mirrors real test section order, skill distribution, and difficulty curve.
Available as complete tests or individual module-level tests by subject.
Designed for diagnostic, weekly, biweekly, or monthly benchmarking.
Scores stay comparable because students never see repeated items.
Problem Sets
Micro-targeted. Skill-specific. Built to drill.
Organized by individual skill, subskill, and difficulty level.
Exclusive to the problem set pool with zero overlap with practice test items.
Rule engine auto-builds custom drills from your parameters.
Lets tutors run focused remediation without contaminating the next diagnostic.
How We Build Questions That Match the Official Blueprint
Hand-pick the experts
Every author is a vetted subject expert with years of teaching, tutoring, and publishing experience.
Paid pilot + validation
Authors complete a paid sample project, and every question is validated through real customer feedback.
Author with Depth
Each question includes a strong stem, distractors, explanations, and detailed skill tagging.
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Production-Ready Questions
Questions are formatted with tables, graphs, images, and layouts that mirror the real exam experience.
Configure on Platform
Question order, adaptive modules, scoring, and test structure are configured to match official exams.
Calibrate & Maintain
Live student data continuously improves difficulty while outdated content is updated and replaced.
Here's What Your Students Get Access to Today
A growing library of blueprint-accurate questions, full-length mock tests, and continuously expanding content designed to deliver reliable diagnostics and meaningful practice.
8,000+
Questions Live
Student-ready and blueprint accurate.
1,000+
In Production
New questions added continuously.
10+
Exam Programs
SAT • ACT • PSAT • SSAT • SHSAT • AP
0
Repeated Questions
Unique question pools across every assessment.
15
SAT Full length mocks
2
SHSAT Mocks
2
PSAT Mocks
10
ACT Full length mocks
5
AP Programs
A Question Isn't Ready Until the Six Layers of Work Behind It Are.
Every question is tagged, validated, and reviewed to ensure accurate diagnostics and reliable learning.
01. Blueprint Alignment
Every question is reviewed against the official test blueprint to match real exam standards.
02. Skill & Difficulty Tagging
Questions are categorized by domain, skill, subskill, and calibrated difficulty for accurate practice.
03. Distractor Validation
Each incorrect answer is intentionally designed to reflect common student mistakes.
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04. Explanation Review
Every answer includes detailed explanations for both correct and incorrect choices.
05. Production Quality
Tables, graphs, images, formatting, and spacing are optimized to mirror the real testing interface.
06. Live Calibration
Student performance data continuously refines question difficulty.
Use our library, build your own, or both
White-label the EdisonOS library, upload your own items, or run both side by side with the same rule engine underneath.
Bring your own Tests (BYOT)
Your proprietary content gets the same infrastructure as ours.
Upload your own questions with full skill, subskill, and difficulty tagging.
Assign items to practice tests or problem sets through the same configuration pipeline.
Identical scoring, reporting, and rule-engine logic across both libraries.
No feature gaps between your items and the EdisonOS library.
Rule-engine custom drills
Full drill configuration control for every partner over our shared questions pool
Auto-generate drills by subskill, difficulty, and student history.
Set the parameters and the rule engine builds targeted problem sets on the fly.
Built-in exclusion logic ensures zero repeats per student across sessions.
Reuse one template instead of manually building new drills each cycle.
Trusted by solo tutors to school districts
100+ tutoring companies, learning centers, and schools run their test prep on EdisonOS.
Joe Krupnick
Krupnick Approach
The more we use your platform, the more impressed we are. It's been an invaluable resource for our needs!
Renata Lohmann
GradePower Learning
Thanks to your platform, students have the tools for effective Digital SAT practice, boosting performance
Michael Ermann
OliveBook
Amazing! Your responsiveness is unmatched, and I’m thrilled to be on your platform!
Not sure where to start? Let's figure it out together.
Tell us about your academy, and we'll help you find the right plan,
estimate your costs, and get you set up.
