Stop copying AI answers.
Start building real developer skills.

Name: Prepzio
Availability: PreOrder

Prepzio is a pocket-sized practice coach for juniors who ship with AI every day — then freeze when asked to explain their code, debug without paste, or walk through a solution in an interview. Five minutes of guided practice. Hints, not handouts. An Independence Score (0–100) tracks how independent you are getting — with a simple Level (L1–L5) underneath.

Private beta · Summer 20260–2 yrs experience · self-taught & bootcampIndependence Score 0–100 + Level L1–L5Learning coach — not a cheat tool

Early-stage, honestly

We're currently interviewing the first 100 AI-using junior developers to shape Prepzio.

Built from early conversations with self-taught and bootcamp juniors who use ChatGPT, Copilot, or Cursor while learning. No inflated user counts on this page — just problems we keep hearing in those calls.

The honest part

AI made you faster. Did it make you better?

Most junior devs today use AI every day. A smaller group still struggles to explain a basic loop without help. Both can be true.

Before · AI only

Fast output. No ownership.

Copy-paste the AI answer
Ship without understanding
Freeze when asked "why?"

After · With Prepzio

Same speed. Real skill.

Attempt first — then hints
Explain your reasoning out loud
Track your Independence Score

EXPLAIN THE CODE

You shipped it. You cannot explain it.

Copilot autocompletes, you accept. Tests pass. A reviewer asks why and your brain blanks. The answer was never yours — you borrowed the reasoning.

DEBUG & INTERVIEW

You paste fixes. You cannot trace them live.

Something breaks. You ask AI, apply the patch, move on. In a screen share or whiteboard round you cannot isolate the bug or rebuild the logic without help.

NO COMPASS

You do not know what to fix.

You finish a tutorial. You feel productive. You still do not know whether you are growing, plateauing, or just borrowing answers — until the next interview.

Sample practice question · JavaScript · Junior level

See how Prepzio coaches — not answers

Most AI tools give you the answer. Prepzio asks you to think first. Try a real practice question below.

Three things we built first

Not another LeetCode. A practice coach that watches how you think.

Independence Score + Level

Independence Score (0–100) is your main trend — higher means less paste, more real understanding. AI Dependency Level (L1–L5) is the simpler weekly label underneath. Same ladder, two views. No competing numbers.

0–100 trend · L1–L5 snapshot

Socratic practice, not answers

Hints ladder up: direction → sub-problem → mini example. You explain in your own words, debug your own reasoning, and practice saying it out loud for interviews. The AI asks better questions — it does not hand you the script.

Hint ladder · reflection · transfer

7-day personal roadmap

After your first session, Prepzio drafts a 7-day plan of 5-to-15-minute practices targeting your weakest two rubric criteria. Re-assess on day 7. Adjust. Repeat.

5–15 min/day · re-assess weekly

Inside the app

Four screens. One loop. Built to be the shortest path between “I copied that” and “I understood that”.

Preview UI from the private beta build — layout and copy may change. The practice loop (question → hints → rubric → roadmap) will not.

DAY 3 / 7STREAK 3

Today · Debugging

Find the bug before the AI does.

5 min · 1 question · 1 reflection

▶ Start practice

WEEK 1 · ROADMAP

Independence Score

78/ 100

AI Dependency Level: L4/5

Home

Independence Score (0–100) + Level on home. One daily focus.

Q 1 / 102:14

Debugging · Junior

Why does this return undefined?

function total(items) {
  items.forEach(i => {
    return i.price;
  });
}

HINT · 1 / 3

What does forEach's return value actually do?

YOUR ANSWER

forEach ignores returns — total returns nothing…

Need a hintSubmit

Session

Question → attempt → hint ladder → reflection. Then submit.

RUN COMPLETE

Session · rubric

You explained it. Nice.

Per-criterion dots · this session only

Problem understanding

Independent attempt

Debugging approach

Explanation clarity

AI dependency

NEXT STEP

Try the same bug pattern in a `.map` next session.

Feedback

Rubric-scored, not just right/wrong. Specific next step.

WEEK 15–15 MIN / DAY

Your 7-day plan

Built from your assessment, not the catalog.

D1Problem reading
D2OOP basics
D3Debugging without AI
D4REST / API basics
D5Explain it back
D6Mixed practice
D7Re-assessment

7-day roadmap

Generated from your weak rubric criteria. 5–15 min/day.

How it works

Five to eight minutes from sign-up to your first real practice rep.

No tutorial maze. No tutorial-finished-but-still-confused feeling. You meet the product the way you meet a coach: it asks, it watches, it gives you something to work on tomorrow.

STEP 01
4-step profile
Experience, goal, AI tools, weak areas. No LinkedIn URL, no recruiter pitch.
~2 min
STEP 02
Independence assessment
A real junior problem. You explain. You attempt. We measure how you reach for help — then give you an Independence Score (0–100) and Level (L1–L5).
~2 min
STEP 03
Skill baseline
Two quick questions — one MCQ, one short text — across your weakest area.
~1 min
STEP 04
Result + day 1 practice
Three strengths, three gaps, a 7-day roadmap, and your first guided session.
~5 min

The rubric

Eight signals. One picture of how you actually code.

Instead of one binary “got it / missed it”, every session is scored across eight junior-growth signals. Independence Score (0–100) is your overall trend. AI Dependency Level (L1–L5) is the simpler weekly snapshot — same direction, different scale. The dots below are session rubric only — not your Independence Score.

Problem understanding
Independent attempt
Conceptual correctness
Explanation clarity
Debugging approach
AI dependency
Reflection quality
Interview readiness

Session #042 · rubric only

Debugging without AI

Problem understanding

Independent attempt

Debugging approach

Explanation clarity

AI dependency

NEXT STEP · TRY THE SAME BUG PATTERN INSIDE A `.MAP`.

Where it fits

Not a ChatGPT replacement. Not a LeetCode grind.

Prepzio is the practice layer on top of the AI you already use, sized for juniors who want to stay independent, not faster at copying.

	ChatGPT / Copilot	LeetCode / similar	Prepzio
Gives you the answer	Instantly.	After you give up.	Only as a last resort. With friction.
Measures how you think	No.	Pass or fail.	8-criteria rubric per session.
Junior-level scope	Anything.	Hard skews heavily.	Built for 0–2 yrs of experience.
Daily 5-min loop	Up to you.	30+ min puzzles.	Mobile-first, fits a coffee break.
Tracks independence	No.	No.	Independence Score 0–100 + Level L1–L5.

Built for

If you finished a course and still feel borrowed, this is for you.

Bootcamp graduate, 4 months in

You finished a JS bootcamp, ship features with Copilot, but freeze on basic interview questions. You need to rebuild the fundamentals you skipped while moving fast.

First job hunt
Web/backend basics
OOP
Debugging

Self-taught, year one

You learned by reading and ChatGPT. You can build small projects but cannot explain why your code works. Recruiters keep asking "walk me through your solution".

Explanation clarity
Interview readiness
DS basics

CS student, hunting first role

You have the theory but freeze in live coding. AI usage during coursework eroded your independent problem-solving muscle. You want it back before your next internship round.

Internship prep
Independent attempt
Reflection

Honest answers

Frequently asked, before you ask.

Is this another LeetCode clone?

No. LeetCode rewards finding the right answer fast. Prepzio rewards how you think — your hint usage, your reasoning, and how clearly you can explain a solution. A junior who can explain a working `for` loop is more hireable than one who memorised quicksort.

Will the AI just give me answers?

It is built not to. Prepzio uses a Socratic hint ladder — direction first, then a smaller sub-problem, then a related mini example. You can always tap "Show solution", but doing so is friction-full and lowers your Independence Score over time.

How do Prepzio scores work?

Independence Score (0–100) tracks how independently you think over time — higher is better. AI Dependency Level (L1–L5) is a simpler label for the same growth ladder: L1 means you mostly copy AI answers, L5 means you can handle a fresh problem on your own. Session rubric dots (1–5 per criterion) score a single practice only; they are not your Independence Score.

What is the AI Dependency Level (L1–L5)?

The simpler weekly label under your Independence Score. L1 means you mostly paste AI answers. L5 means you can handle a fresh, similar problem on your own. Higher level = less reliant on AI. It is framed as a growth axis, not a punishment.

Will I have to pay?

Private beta is free. We will introduce small plans (think coffee-money) once core practice loops are validated. Everyone on the waitlist will get founder pricing and an invite before launch.

When can I actually use it?

Private beta opens summer 2026. Waitlist members are invited in batches, in the order you joined. We are not chasing a public launch — we are chasing a product that genuinely moves the needle for the first 100 juniors.

Why a mobile app, not a website?

Daily 5-to-15-minute sessions need to fit in your commute, breaks, and queues — not your laptop. The retention loop only works if practice is one tap away. The web site you are reading is the only thing we will ship to desktop.

How is my data used?

Your email is used only for waitlist and beta invites. No tracking ads, no resale. Inside the app we log practice answers and hint usage to compute your rubric scores. You can request deletion at any time. Details on the Privacy page.

Be early

The first 100 juniors on the list shape the product.

Joining does not charge you anything. We use the list to validate demand, invite the first cohort, and tell you when the app is ready. No recruiters. No ad tracking on this site.

One short email per month — product updates only, unsubscribe in one click
Beta invite in batch order when we open (target: summer 2026)
Founder pricing locked in for waitlist members
Your first Independence Score (0–100 + Level) included — free in beta

Stop copying AI answers.Start building real developer skills.