DragTree

about

description

DragTree is a reaction-time game built on a real NHRA Christmas Tree (the drag strip starting lights). Watch the ambers, react to the green, and see how fast you were. Beat your best, or beat a friend. Launch it however you like: • Motion sensor — mount the phone in the car, stage, and drive off. The app detects the launch and times it from the start of acceleration. No tapping. • Tap — a big on-screen button. • Hold to Launch — hold the button through the tree and let go on green, like a trans-brake button. • Volume buttons and remotes — use a volume button, a wired headphone button, or a cheap Bluetooth camera-shutter remote as your launch button (Settings, off by default). Fully offline — no internet, no account, no ads, no tracking. TWO PLAYER Put the phone between two people. Each gets their own lane and light; best reaction wins, and a red light loses. TREES • Pro Tree (.400) — all three ambers together, green 0.400 s later • Sportsman Tree (.500) — ambers count down one at a time, green 0.500 s after the last GRADES Perfect (under .050) · Pro · Great · Good · Late · Red Light, which shows how early you went. TRACK YOUR PROGRESS • History of your last 30 runs, personal best, and a trend chart • Consistency stats: average, spread, how often you land within ±.020, and your streak • Series mode: 3, 5 or 10 runs back to back with a summary • Time-slip comparison: enter the reaction time from a real slip and see how your phone differs BUILT FOR PRECISION • The motion sensor is read up to 200 times a second with the sensor's own timestamps, on phones with or without a gyroscope • Accelerometer test: records 5 seconds of background vibration and suggests the most sensitive setting it won't trip • Phone latency check: screen rate, sensor rate and a tap test, so you know how much of a time is the phone • Three sensitivity presets plus a custom setting Optional sounds: a tick on each amber, a beep at green and a chime for your result. The reaction time shown is how quickly you responded after the green. A track time slip also includes the car's rollout and drivetrain response, so DragTree is best for practice and consistency, not for predicting your exact slip. PERMISSIONS • HIGH_SAMPLING_RATE_SENSORS — fast motion-sensor readings • VIBRATE — touch feedback • MODIFY_AUDIO_SETTINGS — plays the sound effects There is no internet permission at all, and no microphone, location or storage access.

publisher

78ce6faa72264387284e647ba6938995735ec8c7d5c5a65737e55130f026307d

first seen

2026-09-30T18:30:19.863538+00:00

last event

2026-10-22 18:44 UTC

website

https://flyboy-byte.github.io/drag-tree/

install

zapstore.dev or any Zapstore-compatible client

topics

#sport game

source & build

repository

https://github.com/flyboy-byte/drag-tree

arch flags

android-arm64-v8a

manifest

missing

releases (kind 30063)

3 releases indexed; latest 1.8.0.

version	channel	released	event
1.8.0	main	2026-10-22 18:44 UTC	dcd55e17…
1.7.4	main	2026-10-12 14:11 UTC	373a19c9…
1.7.3	main	2026-09-29 20:52 UTC	9bdfe9bb…

assets & verification

Every app, release and asset event is schnorr-verified (NIP-01 id + signature) before it enters the catalog, and assets are content-addressed by sha256. We subscribe read-only to the catalog relay — never write to it.

1.8.0 — com.flyboybyte.dragtree_182.apk

sha256

07a71b04294d1aed3ca11093cbcb4bddc3a601cdced8c802079805e1dd21c3d9

size

31.9 MB

archs

android-arm64-v8a

version code

182

apk cert sha256

ff739cf565d8fe3af4ff97e641f6336fa69ebcf3eec222a7a7c5ab9f8e3d837a

download

com.flyboybyte.dragtree_182.apk

1.7.4 — com.flyboybyte.dragtree_172.apk

sha256

646f43ddb700f807660ec202f40c2eb1e07ca3b290179995e9d443ab91a74906

size

31.8 MB

archs

android-arm64-v8a

version code

172

apk cert sha256

ff739cf565d8fe3af4ff97e641f6336fa69ebcf3eec222a7a7c5ab9f8e3d837a

download

com.flyboybyte.dragtree_172.apk

1.7.3 — com.flyboybyte.dragtree_162.apk

sha256

70fd5d69498d2713995f0034d8691c3820850534ea55e34bf2aacd85862e8c62

size

31.8 MB

archs

android-arm64-v8a

version code

162

apk cert sha256

ff739cf565d8fe3af4ff97e641f6336fa69ebcf3eec222a7a7c5ab9f8e3d837a

download

com.flyboybyte.dragtree_162.apk

Showing the newest 3 asset descriptors; the full set is in /api/apps/78ce6faa…