i don’t have real apps but i have 3 specialized calculators i’m working on.
the colebrook-white equation is used to calculate the friction factor in gas pipelines in turbulent flow. note that in the formula, square root of f, √f appears on both sides of the equation so an iterative method was used to arrive at the solution that satisfies the formula, within acceptable thresholds. It is used mainly in the field of fluid dynamics.
the cockcroft-gault formula computes a simple means to provide a reliable approximation of residual renal function in all patients with CKD (chronic kidney disease).
i’m also working on a set of “CKDEPI” formulas (Chronic Kidney Disease Epidemiology Collaboration), which uses different variables to compute GFR ( glomerular filtration rate), which is another way to measure the functioning of the kidney. i had used google sheets as the data source for this project to take advantage of the computational power of google sheets but it looks like i may have to recode the formula into thunkable blocks to avoid the hassle of installing a google sheet with the app.
basically, i just want to try the process of putting at least one of these calculators in the play store. but i’m wondering how to price them. if i give them away (ie. set price to zero), can i really make any money, though? i don’t expect these to be best sellers, but merely knowing that it has been used in real life is good enough satisfaction for me, especially if it’s one of these kidney health level calculators…
i’m gonna have to start reading the PUBLISH article posted earlier in this thread.