Mobile field ballistics for precision shooters. At its core is truing — the calculation corrected against your rifle’s real impacts.

It’s the Finnish word for a tight group bound by a shared craft and a shared standard — people who depend on each other, and on their kit. That’s who Heimo builds for, and how it builds: close to the work, and to the people who rely on what it makes.
Other projects run in the background, but one gets the full focus. Right now that’s Trued — until it can stand on its own.
Know only one and you ship something unusable or unreliable. Trued settles for neither — a serious solver people actually want to use.
Stable, tested, maintainable. The unglamorous parts that decide whether a tool is still trusted in five years.
Heimo is an independent software studio in Helsinki.
We build precise instruments for narrow, demanding fields — work where a tool that almost works is worse than none at all. Everything we ship is held to one standard: it has to be something we would rely on ourselves.
That takes real engineering — performance, correctness, and testing treated as the job, not an afterthought — paired with genuine understanding of the work the tools are for. Trued, a ballistic solver for precision shooters, is the first product to carry the Heimo name.
Press, partnerships, or a question about Trued — we read our own email and reply within a working day.