Carom 3C: Billiards & Notes

Carom3C is a practice tool for three-cushion players who work from systems. Read a lesson on a diamond system, draw the shot yourself, then run it on a simulated table to see whether the numbers hold up. Lessons, a diagram editor, a physics engine and a scoreboard, all on the same cloth.

LESSONS
• A library of lessons on three-cushion systems, diamonds and position play, free to read.
• Each lesson has a difficulty (Beginner, Intermediate, Advanced) and a category, with a diagram to work from.
• Search the library or filter by category to find the pattern you are stuck on.
• Lessons can carry practice notes and worked examples you open on the table and study shot by shot.

THE SYSTEMS BEHIND THEM
Lessons are built on named diamond systems, not general advice. Titles in the library include:
• Long-Long-Short System
• Bankshot Long-Long-Short (No Spin)
• Original Position Half-Table System
• BankShot No-Spin System
• Long-Short-Long 024 System
• Reverse Short-Long-Short System
• Short-Long-Short: No-Spin Calculation
• "Distance Equals Aim" short-rail system
The diagrams show the arithmetic the way you would count it at the table: diamond numbering along the rails, START - AIM = FINISH, and effect counts of 0, 1 or 3.

NOTES: DRAW YOUR OWN
• Place balls and draw trajectory lines on a carom table. 12 colors, width 0.5 to 5, solid or dashed, arrowheads optional.
• Add text labels for your numbers and reminders, and edit the rail diamond labels cell by cell so a note carries its own numbering.
• Use the aim-point helper: a sliced target ball showing cut thickness plus the tip-contact dot, with a bank-shot mode.
• Keep notes in folders. Sort, duplicate and delete them, and search by title or by the text written on the diagram itself.
• Import and export .caromnote files to hand a shot to another player. The format is shared with the iOS version.

RUN THE SHOT, NOT JUST THE PICTURE
Notes come in two kinds: Standard, a static diagram, and Interactive, a shot the app plays out for you. Build it the way you would build it in your head, then let the physics finish it.
• Pick the cue ball, aim by touching the cloth, then set spin (english plus follow or draw on a spin face), force, and stroke from punch to push.
• The engine simulates the whole shot: cue ball path, object ball paths, cushion contacts, and whether the carom is valid.
• Playback animates a cue stick stroking into the ball, then grows the trails and drops numbered badges marking the order the rails were hit.
• When a shot is worth keeping, export it as an MP4 at normal speed or in slow motion, with a settings strip showing spin, hit fullness, force and stroke, then share it.

TOOLS
• Scoreboard: score, innings, averages, high run, and a saved match history.
• Shot clock for timing your turn.
• Playground: a free table for trying any shot without saving it.
• Break draw for laying out a break-shot formation.

FREE AND PRO
The lesson library and the table tools are free. So are your first 10 notes, standard or interactive, in a single folder. Carom3C Pro, monthly or yearly, removes the note limit and adds custom folders.

GOOD TO KNOW
• Your notes are stored on your device and open without a connection. The lesson library needs one.
• There is no account and no sign-in.
• There is no cloud sync and no backup, so export a .caromnote file if you want a copy or want the shot on another device.
• No ads.
• Interface languages: English, Vietnamese, Spanish, Korean, Turkish.
• Also on iOS, and the note file format is the same on both.

Draw the shot, work out why it goes, and keep it.

Recent changes:
• Shot of the Day: a new three-cushion puzzle every day, with streaks, stars, a coach's hint and an evening reminder.
• Lifetime Pro: unlock everything forever with a one-time purchase, alongside the monthly and yearly plans.
• Lesson formulas now show in bold, with each term coloured to match its diamond number.
• Lesson tables fill the screen, and the image viewer zooms right where you pinch.