Chromesthize vs Ready CDL Prep

Chromesthize visualizes music as color in real time. Play an instrument, put on a song, or sing — and watch as each musical note blooms into its own color on screen. Inspired by chromesthesia, a form of synesthesia where people see colors when they hear music, the app maps each of the 12 pitch classes to a distinct color. The result is an immersive, ever-shifting canvas that responds to whatever you're hearing. FEATURES - Real-time visualization of live audio through your microphone - Customizable color mappings — assign any color to any musical note - Presets inspired by famous synesthetes: Scriabin, Rimsky-Korsakov, and Newton - Hear each note while choosing its color with built-in tone preview - Adjustable glow, trail length, sensitivity, and contrast - Settings sync across devices via iCloud - Minimal, distraction-free interface — just music and color Whether you experience synesthesia yourself and want to match your personal color associations, or you're simply curious what your favorite music looks like, Chromesthize turns sound into something you can see.

Pass your CDL knowledge test on the first try — and know you are ready before you book it. All 2,053 practice questions here are written from official state CDL handbooks, and every answer names the handbook section it came from. WHY THIS ONE IS DIFFERENT • Every answer cites its source: why your choice was wrong, why the right one is right, and the exact handbook section, so you can check it yourself. • Your state's answer, not a generic one. State handbooks disagree: the low air pressure warning is 55 psi in some manuals and 60 psi in others. 649 questions here change with your state instead of one national bank. • A readiness score that will not flatter you. It weighs how much you have covered, your accuracy, consistency and how recent your practice is — then estimates your chance of passing. Five right in a row does not move it much, because it should not. EVERY SUBJECT, EVERY ENDORSEMENT • General Knowledge — required for every applicant • Air Brakes — the section most applicants fail first • Combination Vehicles — Class A tractor-trailer • Pre-Trip Inspection — what the examiner wants pointed at • HazMat (H) — placarding, shipping papers, segregation • Tank Vehicles (N) — surge, baffles, outage • Passenger Transport (P) — loading, standee line, exits • School Bus (S) — danger zones, loading, railroad crossings • Doubles & Triples (T) — coupling, converter dollies, sway Class A, B and C, and the learner's permit (CLP), in all 50 states and DC. STUDY THE WAY THE TEST WORKS • Practice by subject with the explanation right there • Exam Simulator that matches the real test's length and pass mark • Timed Drill for exam-day pacing • Daily Study — five questions rebuilt from what you keep missing • Missed Questions and bookmarks • Flashcards between sessions • Handbook Mode — read straight through, questions with answers AI COACH Miss a question and the AI Coach explains it in plain language and points at the handbook section. Ask a follow-up in your own words. Tap for a real-world example, or a quick check to see if it stuck. SKILLS TEST: PRE-TRIP INSPECTION • 32 short video lessons with Mr. Egg: where to stand, what to look at, and exactly what to tell the examiner • Say it back — record yourself giving the script and see which points you covered • Mock inspection with an AI examiner (Pro): the full walk-around against the clock, with a point-by-point result • Every script explained in Spanish, practised in English BUILT FOR LIFE ON THE ROAD • The question bank lives on your device, and lessons download for offline (Pro). Sleeper, yard, no signal. • Daily reminders at a time you choose • Progress synced across your devices • App interface in English or Spanish FREE, WITH AN OPTIONAL UPGRADE 1,321 questions across the four core subjects are free — no account, no card. So are the explanations, Daily Study, flashcards, progress, offline study and the first two pre-trip lessons. Free accounts also get five AI explanations a day. GO PRO Pro adds the Exam Simulator, Timed Drill, every state variation, all five endorsement banks — 2,053 questions in total — unlimited AI explanations, every pre-trip lesson, the mock inspection and offline lesson downloads. Pro Monthly — $19.99 per month Pro Annual — $59.99 per year Pro Lifetime — $79.99, one payment Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account. Manage or cancel anytime in your App Store account settings. Lifetime is a one-time purchase and never renews. Terms of Use (EULA): https://readycdl.ai/terms-of-service Privacy Policy: https://readycdl.ai/privacy-policy DISCLAIMER Ready CDL Prep is not affiliated with, endorsed by, or sponsored by the FMCSA, any state Department of Motor Vehicles, or any government agency. All practice questions are original content written from publicly available state CDL handbooks. They are not actual exam questions.