Tools that do the math
so you can do the job.
We build small, fast apps for people who work with their hands — conduit benders, pipefitters, welders, riggers, pool techs and pilots. No accounts, no dashboards. Type the numbers, get the answer, get back to work.
Built for the trades
Every one of these started with a job-site problem: a chart in a binder, a formula on a scrap of paper, a calculator that rounds wrong.
Conduit Bender: PipeMaster PipeMaster is the fastest conduit bending calculator for electricians — every mark for every ben… 
E6B Flight Computer Calc Every E6B calculation. Free. Offline. This does what the metal wheel in your flight bag does, wi… 
FitterMaster: Pipe Fitter Calc FitterMaster is the pipe fitter's pocket reference: rolling offsets, fitting takeouts, flange bo… 
RigMaster: Rigging Calculator RigMaster is the rigging calculator built for working riggers, crane operators, and signal perso… 
SprayMaster: Spray Calculator SprayMaster is the fast, no-nonsense calculator for licensed pesticide applicators — ag, turf, o… 
WeldMaster: Welding Calculator WeldMaster is the welding settings calculator built for working welders, fabricators, and studen… Also on Android
The same studio on Google Play, under the name MasaApps360.
How we work
Offline first. A basement, a crawlspace and a cockpit all have one thing in common: no signal. Every calculator runs on the device.
No account, ever. You do not sign up to use a calculator. There is nothing to log into and nothing to leave behind.
Exact math. Fractions stay fractions. We do not round to decimals behind your back and hand you a mark that is an eighth off.
Paid once where it makes sense. Most apps are free with an optional Pro unlock. What you get for it is listed on each app's page, before you pay.