Inertial dry-fire trainer
An inertial sensor on your barrel measures the exact angle and direction the bore is pointing. The app renders a professional aim trace, applies ISSF decimal scoring, and tells a dry fire apart from a live round — at whatever distance you happen to have.
Android, iOS and macOS · 24-month warranty · License key paired to your serial number
Distance independence
Camera-based trainers measure a position on a target face, so they need a scaled print, an exact distance and controlled lighting. HOLDSHOT measures the angle the bore is pointing. A target face twice as far away is twice as large in the same angular field — so the 10 m-equivalent decimal score comes out identical either way.
One bore deviation. Two distances. The same 10.4.
Professional aim trace
Standard ISSF decimal scoring and PointMm conventions, rendered as a high-fidelity trace — the same visual loop used to diagnose errors and build stability at the top of the sport.
Shot detection and sensor drift are where inertial training usually falls over. Neither is solved by picking a better constant.
Adaptive classification
A spring-piston rifle's dry impulse can be larger than a match PCP's live one, so telling the two apart is not a one-size-fits-all threshold. A six-shot enrolment teaches HOLDSHOT the acoustic and inertial signature of your specific firearm, and the classifier keeps refining that boundary in-session.
Drift management
Aggressive auto-recentring hides drift — and erases the slow aim wander that is genuine coaching data along with it. HOLDSHOT waits until the gun is truly at rest to apply a zero-rate update, shows how far the current origin can be trusted, and leaves re-centring as a deliberate one-tap action.
Drift confidence, visible for the whole session — not a number you have to take on trust.
Trigger control, stance and hold stability in whatever space you have. Distance is irrelevant, so a three-metre hallway is as useful as a 10 m range.
The raw, unfiltered aim trace shows shooter error, weapon cant and trigger snatch that are invisible to the naked eye at the firing point.
Move between air rifle, air pistol and live firearms. The adaptive classifier re-learns whatever you are shooting rather than being re-tuned by hand.
Review a session on the large screen of a Mac, or take an iPhone or Android device straight to the firing line. Same app, same session record.
Install on AndroidInertial dry-fire trainer. It measures the angle your bore is pointing rather than the distance to a target, so 10 m-equivalent decimal scoring holds up in a three-metre hallway.
$399.00
Mount
Ships with a license key paired to your instrument's serial number. Both arrive by email when your order ships and stay in your dashboard, alongside a 24-month warranty registered automatically.
Prefer the full listing? Reviews and delivery detail.
| Sensor | 9-axis IMU — gyroscope, accelerometer, magnetometer |
|---|---|
| Sampling rate | 1000 Hz |
| Angular resolution | 0.02 mrad (0.2 mm at 10 m) |
| Scoring | ISSF decimal, PointMm convention |
| Shot classification | Adaptive acoustic + inertial, six-shot enrolment |
| Training distance | Any — scoring is angular, not distance-scaled |
| Drift handling | Rest-detected zero-rate update, visible confidence arc |
| Companion app | Android 10+, iOS 16+, macOS 13+ |
| Battery life | 12 hours continuous |
| Connectivity | Bluetooth LE 5.3, USB-C charging |
| Mount | Barrel clamp 15–22 mm or Picatinny rail |
| Weight | 38 g |