Wrist Dope

A real ballistic calculator built for Apple Watch first — not a phone app's afterthought. It runs standalone on your wrist; the iPhone companion is a full app, synced.

FREE TO DOWNLOAD
The full calculator is free on iPhone and Apple Watch. Wrist Dope Pro — a one-time $39.99, no subscription — unlocks Field Trueing, Match Mode, scanning, Siri, auto environmentals, live complications, printable range cards, and unlimited profiles — buy or restore on the watch. Accuracy is never gated.

WHEN THE SHOT WON'T WAIT
No time to dig out a wind meter and thumb through a calculator. Raise your wrist, dial the range, read your hold. Send it. Glanceable and dial-driven, with real math underneath.

A SERIOUS ENGINE, NOT A TOY
- True point-mass solver with G1/G7 drag models
- Coriolis, spin drift, aero jump, and incline compensation
- Holds in MIL or MOA — plus velocity, energy, time of flight
- Validated against published reference trajectories
- Advanced Settings (Pro): switch each correction on or off

LIVE FIRE
Dial the range; the solution updates instantly. A color-coded arrow shows wind at a glance; multi-wind previews holds across wind speeds. The display stays awake on the gun — no dimming between shots.

FIELD TRUEING
Correct the solver to what your rifle actually did. True your muzzle velocity from a chronograph or a group at distance, then your BC on a transonic target. It checks your zero and barrel length first and refuses ranges that can't tell you anything. Trued numbers flow to the Range Card, Live Fire, and the watch.

MATCH MODE — THE STAGE CARD, SOLVED
Build a match as stages and targets, then glance-read the active stage: every target's range and live-solved holds, shot order in one line. Enter on watch or iPhone; arm it and the Stage Card lands on both. Share it as a .wdmatch file — the whole squad imports it.

AIRGUN READY
Pellet-real ammo — tenth-grain weights, BCs to 0.005 — and eleven airgun calibers from .177 (4.5mm) to .72. Pick one and the gun sets itself up: 30 m zero, pellet load, close-range card.

SCOPE LEVEL — FREE ANTI-CANT
A canted rifle misses wide at distance. Zero the level to your rifle and hold by ear — audio and haptic cues, eyes on target. Pro puts a live level behind Live Fire, the Range Card, and the Stage Card. Mount the watch at any angle; the sensors follow.

HIT PROBABILITY AND THE ETHICAL SHOT
Lock a target for a real first-round-hit percentage from your velocity SD, group size, and wind call, plus a terminal check rating energy and impact velocity for your game.

HANDS-FREE WITH SIRI
"Hey Siri, Dope for 250" speaks your hold — watch and iPhone. Wind and target by voice, too.

POINT-AND-LOCK THE FIELD
Aim downrange, tap to lock target; aim downwind, tap to lock wind and dial speed — read on the shooter's clock face.

RANGE CARD ON YOUR WRIST
A full dope table from your chosen minimum. Dial to scroll; rows auto-center.

YOUR DOPE ON THE WATCH FACE
Seven complications: a mini range card on your dialed distance, holds, target, density altitude, and active load.

YOUR RIFLES, YOUR LOADS
Build rifle and load profiles on the watch — no phone required; a badge marks the load your scope is zeroed for. On iPhone, scan a factory ammo barcode and the load builds itself, or pick from a bullet catalog with factory BCs. Export a printable dope card; back up your library to a file you control.

YOUR CONDITIONS, YOUR UNITS
Pressure, temperature, altitude, humidity, and wind each toggle AUTO or MANUAL. Metric or imperial — one switch or per-unit overrides, synced across devices.

PRIVATE BY DESIGN
No accounts, no tracking, no third-party SDKs. Your profiles and readings stay on your device. Weather comes from Apple Weather on request.

Built for hunters, PRS, precision shooters, and airgunners who want a first-round-hit hold without unpacking a bag of gear. Runs on Apple Watch Series 4 and later.

Wrist Dope is a calculation aid. Always verify your data and shoot safely, responsibly, and within the law.