Wrist Dope

A real ballistic calculator built for Apple Watch first — not a phone app's afterthought. The firing solution lives on your wrist and runs standalone; the iPhone companion is a full standalone tool — same solver, same holds — with your guns and loads on a big screen, synced to the watch.

FREE TO DOWNLOAD The full calculator is free on iPhone and Apple Watch. Wrist Dope Pro — a one-time $39.99, no subscription — unlocks scanning, Siri, automatic environmentals, live complications, printable range cards, and unlimited profiles. Accuracy is never gated.

WHEN THE SHOT WON'T WAIT You don't always have time to dig out a rangefinder, set up a wind meter, and thumb through a calculator that needs its own manual. Raise your wrist, dial your range with the Digital Crown, read your hold. Send it.

FAST. ACCURATE. SIMPLE. Most ballistics tools make you pick two. Wrist Dope refuses. The interface is glanceable and Crown-driven — no keyboard, no menus three layers deep — but the math underneath is the real thing, not a watered-down estimate.

A SERIOUS ENGINE, NOT A TOY

• True point-mass trajectory solver with G1/G7 drag models
• Coriolis effect, spin drift, and incline (angle) compensation
• Elevation and windage holds in MIL or MOA, plus velocity, energy, and time of flight
• Validated against published reference trajectories

LIVE FIRE Spin the Crown to scroll range; your solution updates instantly. A color-coded wind arrow shows direction at a glance, and multi-wind mode previews holds across a range of wind speeds.

HIT PROBABILITY AND THE ETHICAL SHOT Lock a target and see a real first-round-hit percentage from your load's velocity SD, group size, and wind-call confidence — plus a terminal check that rates retained energy and impact velocity for the game you're after. Never a fake number; "—" when there's no estimate.

HANDS-FREE WITH SIRI "Hey Siri, Dope for 250" speaks your hold without raising your wrist — on the watch and the iPhone. Set wind and target by voice, too.

POINT-AND-LOCK THE FIELD Aim your wrist downrange and tap to lock target direction and angle. Aim downwind and tap to lock the wind, then dial speed with the Crown. Wind is shown on the shooter's clock face with the crosswind that actually moves your bullet.

RANGE CARD ON YOUR WRIST A full dope table across your range. The Crown scrolls and auto-centers each row — range, elevation, windage, velocity.

YOUR DOPE ON THE WATCH FACE Seven complications put the solution on your face before you even open the app:

• Mini range card: eight ranges of drop and wind holds, centered on your last-dialed distance
• Hold complications: elevation and wind for one distance, with dial-direction arrows
• Wind hold tracks the actual wind you locked in the app
• Target, density altitude, and active-load complications round out the set Every complication is configurable, follows your color theme, and taps straight into its screen.

YOUR RIFLES, YOUR LOADS Build and edit rifle and load profiles right on the watch — no phone required. A reference-zero badge marks the load your scope is actually zeroed for.

SCAN A BOX, BUILD A LOAD Scan a factory ammo barcode on the iPhone and the load builds itself — caliber, bullet, BC, and muzzle velocity — no hand entry. Pick from a bullet catalog with factory BCs.

TAKE YOUR DOPE ANYWHERE Export a printable dope card to PDF or AirPrint, or back up your whole gun library to a file you control. Your data, your device.

CONDITIONS, AUTO OR MANUAL Pressure, temperature, altitude, humidity, and wind each toggle between AUTO (watch sensors) and MANUAL.

PRIVATE BY DESIGN No accounts, no tracking, no third-party SDKs. Your profiles and readings stay on your device. Weather comes from Apple Weather only when you ask for it.

Built for hunters, PRS and precision shooters, and anyone who wants a first-round-hit hold without unpacking a bag of gear.

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