Countdown Number Round Solver for Android
Will give false negatives frequently.
It has solved all the genuine countdown problems I've presented it with. But in real countdown it's not necessary to use all the available sub-numbers. Also, try target 207 sub-numbers 207, 207, 207, 207, 207, 208. The sum produced is not correct - rounding errors? I enjoyed your program though and I'm glad you wrote it :-)
by X####:
Doesn't work at all on S5 Mini, just freezes