Aim Ruler & Angle Protractor
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Practice bank shots with a floating protractor ruler for pool & carrom.
- Price
- Free
- No in-app purchases
- Updated
- Nov 7
- 2026 · v1.0.0
Screenshots
About Aim Ruler & Angle Protractor
Aim Ruler is a see-through protractor and geometry guide that floats over your screen. Place it by hand, line it up with the table, and see bank-shot angles for pool and carrom drawn in real time.
HOW IT WORKS
• Fit the cushion box: drag four corners onto the cushion edges once and save it as a preset.
• Drop the pivot circle where the cue ball will touch the target.
• Turn the angle knob. The aim line, the cushion rebound and the 90° cue-ball path update instantly.
• Fine-tune in 0.1° steps, hide the lines while you shoot, or shrink the tool to a small bubble.
FEATURES
• Bank-shot reflection lines based on angle in = angle out
• 90° tangent line that shows where the cue ball goes after contact
• Pool table mode and square carrom board mode
• Protractor ring with a live degree readout
• Saved table presets for different games and zoom levels
• Line color, thickness and opacity settings
• A short geometry guide that explains each rule
• 6 languages: English, हिन्दी, اردو, العربية, Português, Bahasa Indonesia
PRO LINES WITH A SHORT VIDEO
Watch one rewarded video to turn on 3-cushion lines, the Neon theme and numbered cushions for 45 minutes. Watch again any time to add more time.
PRIVACY FIRST
• Draws only the lines you place. It never captures, records or reads your screen.
• Does not access game data or game memory.
• No account needed. Settings stay on your phone, and the ruler works offline.
• Uses the "Display over other apps" permission so the lines can sit on top of your game.
GOOD TO KNOW
The lines are pure geometry. Spin, power and each game's own physics change the real path, so use Aim Ruler as a practice and learning tool. Some online games do not allow overlay tools in ranked or competitive matches, so please follow the rules of each game you play. Aim Ruler is not affiliated with any game or game publisher.
Aim Ruler is supported by ads.
Questions or ideas: [email protected]
HOW IT WORKS
• Fit the cushion box: drag four corners onto the cushion edges once and save it as a preset.
• Drop the pivot circle where the cue ball will touch the target.
• Turn the angle knob. The aim line, the cushion rebound and the 90° cue-ball path update instantly.
• Fine-tune in 0.1° steps, hide the lines while you shoot, or shrink the tool to a small bubble.
FEATURES
• Bank-shot reflection lines based on angle in = angle out
• 90° tangent line that shows where the cue ball goes after contact
• Pool table mode and square carrom board mode
• Protractor ring with a live degree readout
• Saved table presets for different games and zoom levels
• Line color, thickness and opacity settings
• A short geometry guide that explains each rule
• 6 languages: English, हिन्दी, اردو, العربية, Português, Bahasa Indonesia
PRO LINES WITH A SHORT VIDEO
Watch one rewarded video to turn on 3-cushion lines, the Neon theme and numbered cushions for 45 minutes. Watch again any time to add more time.
PRIVACY FIRST
• Draws only the lines you place. It never captures, records or reads your screen.
• Does not access game data or game memory.
• No account needed. Settings stay on your phone, and the ruler works offline.
• Uses the "Display over other apps" permission so the lines can sit on top of your game.
GOOD TO KNOW
The lines are pure geometry. Spin, power and each game's own physics change the real path, so use Aim Ruler as a practice and learning tool. Some online games do not allow overlay tools in ranked or competitive matches, so please follow the rules of each game you play. Aim Ruler is not affiliated with any game or game publisher.
Aim Ruler is supported by ads.
Questions or ideas: [email protected]
What’s new
Version 1.0.0 · Updated November 7, 2026
Aim Ruler is here! A see-through bank-shot protractor for pool and carrom: fit the box, turn the knob and see the cushion line (angle in = angle out).