--- title: "CHMOD Lab: Linux Permissions - Reviews, Revenue and Downloads in United States | Apple App Store" description: "Stop guessing Linux file permissions. CHMOD Lab is the ultimate interactive sandbox and calculator for developers, SysAdmins, and students who want to master the command line. Whether you are configu" --- # CHMOD Lab: Linux Permissions — United States ![CHMOD Lab App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/e0/25/39/e025394e-96c2-a2b3-4768-5de76710532a/AppIcon-0-0-1x_U007epad-0-1-85-220.png/434x0w.png) **Developer:** [Guy Miller](https://apptail.io/developer/guy-miller-CoBCwb) **Category:** Utilities **Rating:** 5.0/5 (1 ratings) **Price:** Free **Bundle ID:** com.pyxelblaze.chmodlab-ios **Store:** Apple App Store **Country:** United States **Version:** 1.0 (released 2026-01-06) **Original Release:** 2026-01-06 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/us/app/app/id6757230787) **AppTail Page:** [https://apptail.io/app/chmod-lab-linux-permissions-omky/united-states](https://apptail.io/app/chmod-lab-linux-permissions-omky/united-states) ## CHMOD Lab Description Stop guessing Linux file permissions. CHMOD Lab is the ultimate interactive sandbox and calculator for developers, SysAdmins, and students who want to master the command line. Whether you are configuring a web server, debugging a script, or studying for your Linux certification, CHMOD Lab bridges the gap between confusing octal numbers (755) and symbolic notation (rwxr-xr-x). FEATURES: • Interactive Calculator: Toggle permissions instantly. Tap "Read," "Write," or "Execute" and watch the Octal and Symbolic codes update in real-time. • Reverse Lookup: Type in a code like "644" and see exactly which permissions are granted. • Visual Sandbox: See permissions visualized to understand "who" can do "what" before you run the command. • Cheat Sheet: Built-in reference guides for common permission patterns. Master the command line. Download CHMOD Lab today. ## CHMOD Lab Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/1c/57/03/1c57035d-b5b7-8129-6c28-710dd86dc5a2/CHMOD_Lab_-_AppStore_screenshot-01.png/1290x2796.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b2/8e/29/b28e293e-96f1-8dc8-44d4-1fbd3271f3ce/CHMOD_Lab_-_AppStore_screenshot-02.png/1290x2796.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/b4/13/ea/b413eab0-437e-68a7-5447-64fbe97c3175/CHMOD_Lab_-_AppStore_screenshot-03.png/1290x2796.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/70/6b/18/706b18c9-539b-573d-fd3d-f8c74a1fae03/CHMOD_Lab_-_AppStore_screenshot-04.png/1290x2796.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/74/72/c2/7472c26d-66c7-a171-a703-bf347637a094/CHMOD_Lab_-_AppStore_screenshot-05.png/1290x2796.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/aa/8d/32/aa8d328a-f6af-570f-9f03-38c0bf6940b6/CHMOD_Lab_-_AppStore_screenshot-06.png/1290x2796.png) - [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/05/ec/12/05ec12b9-724b-65de-cc82-f2178e84e578/CHMOD_Lab_-_AppStore_screenshot-07.png/1290x2796.png) - [Screenshot 8](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/dd/f7/d7/ddf7d7ca-143b-264a-e47b-9a8f16c951af/CHMOD_Lab_-_AppStore_screenshot-09.png/1290x2796.png) - [Screenshot 9](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/be/da/bb/bedabb71-bdb7-f4c7-9c01-e204b4f38785/CHMOD_Lab_-_AppStore_screenshot-08.png/1290x2796.png) - [Screenshot 10](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4e/d7/44/4ed74469-c932-88c7-6745-07e2f4648573/CHMOD_Lab_-_AppStore_screenshot-10.jpg/1290x2796.png) ## CHMOD Lab Rating Breakdown in United States - 5 stars: 1 (100%) - 4 stars: 0 (0%) - 3 stars: 0 (0%) - 2 stars: 0 (0%) - 1 stars: 0 (0%) ## CHMOD Lab Available In - [United States](https://apptail.io/app/chmod-lab-linux-permissions-omky/united-states) - [Canada](https://apptail.io/app/chmod-lab-linux-permissions-omky/canada) - [Colombia](https://apptail.io/app/chmod-lab-linux-permissions-omky/colombia) - [United Kingdom](https://apptail.io/app/chmod-lab-linux-permissions-omky/united-kingdom) - [Hong Kong SAR China](https://apptail.io/app/chmod-lab-linux-permissions-omky/hong-kong) - [India](https://apptail.io/app/chmod-lab-linux-permissions-omky/india) - [Latvia](https://apptail.io/app/chmod-lab-linux-permissions-omky/latvia) - [Malta](https://apptail.io/app/chmod-lab-linux-permissions-omky/malta) - [New Zealand](https://apptail.io/app/chmod-lab-linux-permissions-omky/new-zealand) - [Ukraine](https://apptail.io/app/chmod-lab-linux-permissions-omky/ukraine) - [Uruguay](https://apptail.io/app/chmod-lab-linux-permissions-omky/uruguay) - [Uzbekistan](https://apptail.io/app/chmod-lab-linux-permissions-omky/uzbekistan) - [Vietnam](https://apptail.io/app/chmod-lab-linux-permissions-omky/vietnam) - [Belgium](https://apptail.io/app/chmod-lab-linux-permissions-omky/belgium) - [South Africa](https://apptail.io/app/chmod-lab-linux-permissions-omky/south-africa) --- ## 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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