--- title: "Debugging: Inside the Machine - Reviews, Revenue and Downloads in United States | Apple App Store" 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 — fin" --- # Debugging: Inside the Machine — United States > AP CSP & CSA debug practice ![Debugging App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/4c/eb/4c/4ceb4c5b-d87d-7faf-805d-fd9f09f96cc5/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [Unknown](https://apptail.io/developer/unknown-ENCXbc) **Category:** Education **Rating:** 5.0/5 (5 ratings) **Price:** Free **Bundle ID:** com.csplusplus.debugging **Store:** Apple App Store **Country:** United States **Version:** 1.0.7 (released 2026-04-30) **Original Release:** 2026-04-29 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6764385144) **AppTail Page:** [https://apptail.io/app/debugging-inside-the-machine-yizz/united-states](https://apptail.io/app/debugging-inside-the-machine-yizz/united-states) ## Debugging 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 iPhone and iPad. — 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 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. ## Debugging Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/9c/c5/7a/9cc57a61-b37c-a5a6-77b4-5b36a81b5def/01-title-csp.png/2778x1284.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/e0/25/6d/e0256d38-d69c-465c-1600-dbd42a50c7a6/04-pseudo-reference.png/2778x1284.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/61/9e/cf/619ecfee-eb41-964b-8aeb-4e66fa0ee4b7/02-question-csp.png/2778x1284.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/11/56/9c/11569c9b-8033-f8bf-255a-7d8356909745/05-title-csa.png/2778x1284.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/58/d6/a8/58d6a846-18ac-82cc-bda5-b3b7331c02c4/07-win-screen.png/2778x1284.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/d4/12/ad/d412add4-c0be-ad15-11e7-46bed7e2cf3c/06-question-csa.png/2778x1284.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/83/cc/e8/83cce83a-d25c-fb32-fc7c-1b66981ecaf6/03-instructions.png/2778x1284.png) ## Debugging Rating Breakdown in United States - 5 stars: 5 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## Debugging Reviews in United States ### ***** "5/5" Great for students practicing ap csp and csa would highly recommend -- Sh iekjfbebgw, 2026-04-30 ### ***** "Best CS++ Game out there" This is one of the best games for cs ++ -- qianjames, 2026-04-30 ### ***** "Best App Ever" This is a peak app. Best app I’ve ever used. Ever since I started playing Debugging: Inside the Machine, I’ve hopped off from all my other video games. Now I have no life and spend 16 hours a day on this app. I highly recommend this to everyone. Mr. Hare is awesome. Mean Girls is awesome. Mr. Hare pls give me an A+ -- Zheng_A, 2026-04-29 ### ***** "What a way to learn" kevin hare is a great software developer. From his incredible learning resources to all his outside projects, kev never ceases to amaze me. although all this is great and i learned so much from this app, this app doesn’t come close to kev’s best invention, the freshman finder. what a great invention. -- victor rev, 2026-04-29 [View all Debugging reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews) ## Apps Similar to Debugging - [Sphero Edu](https://apptail.io/app/sphero-edu-knh/united-states) - [Unified Talent Mobile](https://apptail.io/app/unified-talent-mobile-FNx/united-states) - [Canvas Teacher](https://apptail.io/app/canvas-teacher-SpO/united-states) - [Raptor Alert](https://apptail.io/app/raptor-alert-HCMb/united-states) - [TEACHERS | TalkingPoints](https://apptail.io/app/teachers-talkingpoints-Glic/united-states) - [ZipGrade](https://apptail.io/app/zipgrade-Eyic/united-states) - [Merge Object Viewer](https://apptail.io/app/merge-object-viewer-cmYd/united-states) - [MIT App Inventor](https://apptail.io/app/mit-app-inventor-fmYd/united-states) - [VEX via](https://apptail.io/app/vex-via-TOCe/united-states) - [Bluebook Exams](https://apptail.io/app/bluebook-exams-Jadl/united-states) ## Debugging Available In - [United States](https://apptail.io/app/debugging-inside-the-machine-yizz/united-states) - [Barbados](https://apptail.io/app/debugging-inside-the-machine-yizz/barbados) - [Bulgaria](https://apptail.io/app/debugging-inside-the-machine-yizz/bulgaria) - [Bahrain](https://apptail.io/app/debugging-inside-the-machine-yizz/bahrain) - [Belize](https://apptail.io/app/debugging-inside-the-machine-yizz/belize) - [Ghana](https://apptail.io/app/debugging-inside-the-machine-yizz/ghana) - [United Arab Emirates](https://apptail.io/app/debugging-inside-the-machine-yizz/united-arab-emirates) - [Kenya](https://apptail.io/app/debugging-inside-the-machine-yizz/kenya) - [Mauritius](https://apptail.io/app/debugging-inside-the-machine-yizz/mauritius) - [Namibia](https://apptail.io/app/debugging-inside-the-machine-yizz/namibia) - [Paraguay](https://apptail.io/app/debugging-inside-the-machine-yizz/paraguay) - [Senegal](https://apptail.io/app/debugging-inside-the-machine-yizz/senegal) - [Japan](https://apptail.io/app/debugging-inside-the-machine-yizz/japan) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. 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