Confidence Test Prep • 2,500 users
SAT Preparation website with personalized study plan and effective methods of learning.
Role
Founding Engineer
Timeline
Mar 2026 – Present
Team
Founding team
Skills
Next.js
TypeScript
Supabase
Analytics
Overview
Personalized SAT prep: diagnose after every test, then follow a plan that actually fits the user.
Confidence Test Prep is built around the user, not a generic question dump. After each test we diagnose what is holding the score back and turn that into a study plan. From there, users can prepare in the mode that fits the day: full tests, short scoped practices, a question bank, vocab, training packs, and a leaderboard.
Diagnose
Every test feeds a skill map so users see weak spots, not just a score.
Study plan
Results become the next session — what to drill, and why it matters for the score.
Practice modes
Full tests, scoped drills, question bank, vocab, training packs, and a leaderboard.
Product
Personalization
A study plan that updates after every test
Diagnosis turns into the next session — what to drill, and why it matters for the score.
Different ways to prepare
Full tests that feel like test day
Sit a full SAT, get a score, and feed the diagnosis that updates the study plan.
Quick scoped practices
Short, targeted drills when a full test is too much — still pointed at the weak skills.
Question bank
Browse and drill by subject, domain, and difficulty instead of always sitting a whole test.
Vocab practice
Focused vocab work for Reading & Writing, tied to the same progress loop.
Training packs
Exclusive modes to master one SAT skill at a time, then return to the plan.
Track progress
Progress you can actually read
See the trend, not just the last number: scores, weak skills, and what to work on next.
Leaderboard
Keep users coming back by making progress visible next to other people in the same grind.
Reflection
What I learned
Listen, then ship.
User feedback is the fastest way to improve. Always give users a way to tell you what is broken, confusing, or missing — then actually use it.
Less is more.
Piling on features hides the strong ones you already have. A smaller set that users can find beats a product that can do everything.
Onboarding is the product.
If the first session is confusing, the study plan never gets a chance. Getting people in the right way matters as much as what you built after.