Trued – field ballistics

Heimo.ai

About this app

Trued builds a DOPE card you can trust: the calculation is trued to your rifle's real impacts, so your corrections match — not just theory.

Built for the field: night mode (dim red on black), glove-sized controls, and large numbers you can read at arm's length.

Mission Mode cuts GPS and silences the app's emissions — keep a low signature and work even under radio silence.

At distance the solve accounts for spin drift and Coriolis. Print the card, pocket the phone, go dark.

What’s new

First public release. Trued has been in closed testing with Finnish precision-rifle shooters since June; this build opens it to everyone.

New here: rimfire gets its own drag law. A .22 LR can be entered as RA4, the curve its BC is published against, instead of being forced into G1 or G7. A load that is subsonic from the muzzle no longer reports a supersonic range it never had. Bullet weight in the status strip no longer reads grains while showing grams.