Python Code Cards vs BB Run

Try the Python code you just found, right on your iPhone or iPad. See why it works by stepping through it. Python Code Cards combines an offline Python 3.14 runtime, an editor, and a step debugger with a notebook for your small code experiments. MADE FOR SMALL EXPERIMENTS • Check a snippet while reading a tutorial • Follow a loop or branch and inspect changing values • Keep useful code with your own notes START WITH CODE THAT ALREADY RUNS Five editable samples include FizzBuzz, Fibonacci, Binary Search, Bubble Sort, and Recursive Factorial. Change a number or condition and compare the results. This is a place to run and explore code, rather than a course or quiz app. PAUSE A LINE. SEE THE VALUES. Set breakpoints from line numbers. Continue, pause, step over, step into, and step out. Inspect variables, watch expressions, the call stack, and output as you debug. KEEP EACH EXPERIMENT AS A CARD Add code cards and notes. Edit, duplicate, collapse, and reorder them. Source, breakpoints, watches, and recent results stay together on your device. WRITE AND CHECK WITH LESS FRICTION Python syntax highlighting and local completion for keywords, built-ins, and symbols in your code. See standard output, exception lines, execution time, and resulting variables. Choose System, Light, or Dark appearance and switch the interface among 10 languages. NO ACCOUNT. NO ADS. NO TRACKING. The core app works without an internet connection. No analytics, tracking, or cloud sync. Cards and settings remain in local app storage and are not automatically sent to the developer. WHAT IS INCLUDED The bundled Python standard library is supported. Installing third-party packages with pip, AI completion, and cloud execution are not supported. Normal execution has a time limit.

BB Run keeps your whole dev workflow one click away — right in the menu bar. Start a build, stop a run, or jump back to any open Xcode workspace without switching apps. BB Run quietly records every run and turns them into trends you can actually use. WHAT YOU GET • Menu-bar control — run, stop and bring to front any open Xcode workspace • Pick the destination (simulator or your Mac) before you launch • Automatic run history — every launch logged with time and result • Trends & charts — daily / weekly / monthly run counts, durations and a project leaderboard • Projects pane — pin, hide and reorder; last run at a glance • BB Run for iPhone — projects and trends in your pocket, synced over iCloud • 10 languages, light & dark themes PRIVACY FIRST No analytics, no tracking, no servers. Your history lives on your Mac and in your own iCloud. ONE-TIME PURCHASE No subscription, no in-app purchases. Buy once — works on Mac and iPhone.