AimCalc - Ballistic Calculator

Aim small, Miss Small. Now optimized for iPhone Duo.

AimCalc turns range, wind, and weather into two numbers you can dial, elevation and windage, computed by a real point-mass ballistic solver, not a lookup table.

One purchase. No subscription, no in-app purchases, no accounts, no ads, and no data collection. Everything solves on your device and works without cell service.

THE SOLUTION • Elevation and windage in MIL, MOA, or holdover: real inches/cm at the target for handguns and fixed sights • Dial range with a slider, step buttons, or type it exactly, from 5 yards to 1,500 • Velocity, energy, time of flight, and Mach at the target, with transonic warnings • Wind set on a clock-face dial, the way shooters actually call it

A REAL ENGINE • Point-mass solver with G1 and G7 drag models, integrated at 2,000 steps per second • Full atmosphere: station pressure, temperature, humidity, density altitude • Spin drift, Coriolis, and true vector inclined-fire corrections • Zeroing that travels: your zero-day atmosphere is stored with the rifle, so solutions stay honest when you change altitude or weather

MAKE IT YOUR RIFLE • Cartridge library with 83 factory loads (rifle, handgun, and rimfire), each with the maker's published BC, velocity, and typical twist • Zeroed with: record the load your scope's zero belongs to, and every other load dials relative to that real zero (one rimfire zero honestly serves 710 to 1470 fps ammo) • True Velocity: shoot a known distance, enter the miss, and AimCalc solves the muzzle velocity your barrel actually delivers • Unlimited gun and ammo profiles, with duplicate for load development • Your data is yours: export and import profiles and the range journal as files, between your own devices, with no cloud in the middle

IN THE FIELD • Capture Live: one tap fills pressure, temperature, humidity, and wind from Apple Weather; every value stays editable • Point-at-target incline: put the camera crosshair on the target and capture the shot angle • Targets: save named firing points at the walkthrough, then engage them with a tap • D.O.P.E. cards: save the current solution to Photos or AirDrop it to your spotter, stamped with its conditions and time • Range Journal: one tap logs the session (the solution, conditions, and location) plus a target photo and your notes. A shooter's diary that builds itself • Light mode and larger text sizes for bright days and tired eyes

ON iPHONE DUO • Half-open on the shooting mat, the standing screen shows elevation and windage in display-size digits with the direction spelled out and arrowed, readable from behind the rifle. Every control sits on the flat screen under your hand • The split lands on the hinge the phone reports, so nothing crosses the fold • Open flat, the Solution tab becomes a stage card: every saved target with its own solution beside the full solution • Trajectory shows the chart and the table side by side; Ballistics shows guns and loads beside the editor • Closed, it is the same AimCalc as every iPhone • Dark or light with one tap from the bench toolbar

ON YOUR WRIST • The Apple Watch companion runs the same solver on-device • Digital Crown dials range; tap through saved targets; the wind page has the same clock dial as the phone • A Settings page on the watch: dark or light appearance, MIL or MOA, profile and target pickers, and Sync from iPhone • Long press to share a D.O.P.E. card straight from your wrist • Keeps working with your phone in your pack

US and metric units throughout. MIL, MOA, and holdover. Trajectory charts colored by speed with drag-to-inspect, a full range table, and a built-in glossary that teaches the concepts in plain language.

AimCalc collects nothing. Location is used only for weather and the Coriolis correction, and never leaves Apple's services. Your profiles stay on your devices.