Debugging: Inside the Machine is an educational app developed by CS++ | Computer Science Education.
Download Statistics
Debugging: Inside the Machine has been downloaded 6 times. In the last 30 days, the app was downloaded 4 times.
User Ratings
The app has no ratings yet.
App Information
Debugging: Inside the Machine is FREE to download. The APK download size is 6.05 MB. The latest version available is 1.0. The last update was on May 9, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on Google Play 7 weeks ago.
Description
Debugging: Inside the Machine is a free debugging-practice arcade platformer for students preparing for AP Computer Science Principles or AP Computer Science A. You're inside a corrupted machine — find the USB Key, fix the glitches, and escape the firewall before the system collapses.
CSP and CSA modes ship in the same app. Tap once to switch.
— EASY · MED · HARD — Each difficulty is a different level, with its own glitch tilemap and its own question bank. CSP topics: Selection, Iteration, Functions & Lists. CSA topics: Variables · Strings, Iteration · Loops, Arrays · Recursion. Two bonus levels (K-Pop Demon Hunters, Minecraft) unlock when you've cleared all three difficulties.
— CODE LENS — Glitches scatter across each level as collectible bugs. When you're in range, the CODE LENS button pulses on screen. Tap it and a real multiple-choice debugging question appears: read the broken code, pick the actual bug from four explanations, and the glitch repairs. Wrong answer? Stability drops 10 percent. Right answer? Stability recovers 5 percent and the level inches closer to stable.
— Real questions, not filler — Every question is hand-written and scoped to AP exam topics. No random AI hallucinations, no off-curriculum trivia. The pseudocode reference card (CSP) and Java Quick Reference (CSA) are one tap away during any question.
— Built for phones and tablets — Touch controls only. Bottom-left D-pad to move, big JUMP button on the right, hold for higher jump. Question screens use full-size answer buttons. Designed for landscape phones and tablets.
— Offline, no account, no tracking — Everything ships in the app. The game makes zero network calls, collects zero analytics, and requires no sign-in.
— More from CS++ — A "More from CS++" button connects you to the rest of the CS++ family: the AP CSP and AP CSA full-curriculum web apps, the CS++ Java IDE for on-device Java practice, and the free csplusplus.com web resources (curriculum, vocab trainer, practice exams).
For: AP CSP and AP CSA students, CS teachers building exam prep sessions, anyone who likes finding bugs.
Recent changes: First release. Debug CSP pseudocode glitches and CSA Java glitches in a side-scrolling platformer. Tap CODE LENS near any glitch, pick the bug from four explanations, and watch the system stabilize. Beat all three difficulties (Easy, Med, Hard) to unlock K-Pop Demon Hunters and Minecraft bonus levels. CSP and CSA modes ship in the same app — tap once to switch.
Get a detailed PDF report for Debugging: Inside the Machine with download trends, rating history,
and key performance statistics — useful for competitive research or tracking your own app.
Learn more
Are you the developer of this app? Join us for free to see more information about your app and learn how we can help you promote and earn money with your app.
Each subscription will automatically renew 3 days before the expiration date for
the same time period. Subscriptions can be cancelled at any time before the renewal.