# TrueLine: Bowling Ball Tracker

> Speed, hook & entry angle

Canonical page: [https://chrome-stats.com/d/id6801953797](https://chrome-stats.com/d/id6801953797)

## Overview

- **ID:** `id6801953797`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** ADAM CHENGER ZHU
- **Category:** Sports
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 1.0
- **Last updated:** 2026-08-24
- **First published:** 2026-08-24
- **Size:** 7.38 MB
- **Data as of:** 2026-09-05
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/trueline-bowling-ball-tracker/id6801953797)
- **Privacy policy:** [https://adam-zhu1.github.io/trueline/privacy](https://adam-zhu1.github.io/trueline/privacy)

## Description

Pro-style ball tracking without the pro-shop price. Prop your phone behind the approach and get the numbers a coach would give you, on every single throw.

TrueLine turns your iPhone into a ball-motion tracker. Prop it behind the approach and bowl. Seconds after each throw, you see the numbers serious bowlers pay thousands to get, computed entirely on your phone.
  
WHAT IT MEASURES
  • Ball speed
  • Board at the arrows
  • Launch angle 
  • Breakpoint board and distance
  • Entry board and entry angle
  • Total hook, in boards 
  • Pocket hits 
  
SEE YOUR GAME
  • Your throw replayed with the tracked path drawn on it
  • Every line of a session fanned on one lane view 
  • Trends across sessions: speed, hook, entry angle, pocket %
  • Compare your arsenal: per-ball speed, hook, and pocket rate
  • Target-line practice: pick a board, get scored on hitting it
  • Share cards: one tap turns any shot into a post-ready image
  
MADE FOR PRACTICE
  • Calibrate once per phone placement, then just bowl
  • Works at any center on any lane, no extra hardware needed
  • Analyze footage you already have from your camera roll

PRIVACY
Everything runs on your iPhone. There is no account and no subscription, and nothing is ever uploaded anywhere. Your first 10 throws are free. A single purchase unlocks TrueLine forever.

## Rankings

- #767,422 — Overall

## Similar extensions and apps

- [Advanced Bowling Tracker](https://chrome-stats.com/d/id6759532374) — 4.80 / 5
- [AI Bowling](https://chrome-stats.com/d/id6475312282) — 4.00 / 5
- [Bowling Score Tracker - Lane](https://chrome-stats.com/d/id6760602844) — 5.00 / 5
- [Bowling Score Keeper & Tracker](https://chrome-stats.com/d/id6781722770) — 4.80 / 5
- [StrikeTrack](https://chrome-stats.com/d/id6780097106)
- [Bowling Score Keeper & Stats](https://chrome-stats.com/d/id6788807462)
- [Bowly: Bowling Score Tracker](https://chrome-stats.com/d/id6759820168) — 5.00 / 5
- [Simply Bowl: Bowling Tracker](https://chrome-stats.com/d/id1588316157)
- [LaneTrax](https://chrome-stats.com/d/id6475736816) — 4.80 / 5
- [LuckyStrike - Tenpin Tracker](https://chrome-stats.com/d/id6462501226) — 5.00 / 5
- [StrikeMaster: Bowling Tracker](https://chrome-stats.com/d/id6742661765) — 4.90 / 5
- [Clean Bowled: Cricket Speed](https://chrome-stats.com/d/id6776917530) — 5.00 / 5

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6801953797)