What are these symptoms?, and if they are not alike what are the differences?
Yeast infections can leave traces in the urine, as yeast will also populate the outside of the vagina and be flushed off by urine. The stick that shows whether or not you have a UTI measures the pH of your urine (the acidity), and as a UTI gives off an acidic reading (negative on the pH scale), yeast gives off a basic reading (positive on the pH scale), which throws it off.
Bladder infections are just that- Infections of the bladder. Urinary tract infections (UTIs) are infections of the entire tract, the bladder, the urethra (the tube through which the urine flows) and sometimes the ureters (tubes connecting the kidneys to the bladder) and the kidneys as well. UTIs will cause the feeling of having to urinate frequently, as well as (sometimes) burning, stinging, or itching during urination, and a strong odor from the urine.