Written lessons
Every concept explained in prose you can actually read — not bullet fragments scraped from a slide.
Prepstellar
The Complete Cert Academy
Everyone else sells you a question bank. We're building the whole academy: narrated lessons, an AI tutor, spaced review, mock exams, game modes and a community — for cloud and data certifications.
We're building it now. One email when we launch — nothing else.
The difference
An academy, not a question bank
Most cert prep hands you a pile of questions and wishes you luck. You memorize answers, pass or fail, and forget it a week later. We think that's backwards.
A question bank
- ✕Endless dumps, no explanation of why
- ✕You memorize answers, not concepts
- ✕No path — just shuffle and repeat
- ✕Silently stale when the exam changes
- ✕Nobody to ask when you're stuck
An academy
- ✓A written lesson for every concept, narrated too
- ✓A tutor to ask when you're stuck
- ✓Review that comes back when you'd forget
- ✓Mock exams timed and weighted like the real one
- ✓Game modes, and people doing the same exam
What's inside
Everything a course should have
A question bank is one of these seven. We're building the other six too, because that's what it takes to actually learn the material.
Narrated audio
The whole syllabus, read aloud like a podcast. Study on the commute, at the gym, doing the dishes.
AI tutor
Stuck at 11pm? Ask. It knows the concept you're on and answers within your course, not in general.
Tests & mock exams
Practice per concept, then full mock exams — timed like the real thing and weighted by domain like the real thing.
Spaced review
What you got wrong comes back — exactly when you're about to forget it, not before.
Game modes
Fast rounds that turn revision into something you'd actually open on a Tuesday night.
Community
Ask on the exact concept that tripped you up, and see what tripped up everyone else. Moderated.
Under the hood
And all of it stays true
An academy is only worth it if the material is right. So everything here traces back to the vendor's own study guide — the current version, not a forum thread or someone's memory of last year's exam.
When a vendor changes a guide, we see it and rewrite what moved. It's not the reason to choose us. It's the reason the rest holds up.
The catalog we're building
Thirty courses, one academy
Cloud and data, across every major vendor — plus the tech skills underneath them. Nothing here is live yet: we're writing it all from scratch. Join the waitlist and we'll tell you the day it opens.
Microsoft
13 courses
Azure FundamentalsAZ-900
Azure Data FundamentalsDP-900
Fabric Analytics EngineerDP-600
Fabric Data EngineerDP-700
Power BI Data AnalystPL-300
Power Platform FundamentalsPL-900
Azure AdministratorAZ-104
Azure DeveloperAZ-204
Solutions Architect ExpertAZ-305
Azure AI FundamentalsAI-900
Azure AI EngineerAI-102
Azure Data ScientistDP-100
Security FundamentalsSC-900
AWS
5 courses
Cloud PractitionerCLF-C02
Solutions Architect AssociateSAA-C03
Data Engineer AssociateDEA-C01
AI PractitionerAIF-C01
ML Engineer AssociateMLA-C01
Databricks
4 courses
Data Engineer Associate
Data Analyst Associate
Generative AI Engineer Associate
Spark Developer AssociateDCAD
Google Cloud
3 courses
Professional Data Engineer
Associate Cloud Engineer
Cloud Digital Leader
Snowflake
2 courses
SnowPro CoreCOF-C03
SnowPro Advanced: Data EngineerDEA-C02
Tech skills
3 courses
SQL Fundamentals
Python Fundamentals
dbt Analytics Engineering
Why we're building this
Built for the people who actually sit the exam
Certifications are how a lot of people change jobs, get the raise, or get through the door at all. That deserves better than a shuffled deck of someone else's answers.
Be first
Join the waitlist
We'll send one email when Prepstellar opens. No newsletter, no drip campaign, no sharing your address with anyone.