The period tracker for men
Every cycle app on earth is built for her. RAWDOGGER is built for you — the guy who'd rather know the window than get surprised by it.
Why would a man track a cycle?
Three honest reasons. First, the obvious one: if you're not trying to become a father, the fertile window is information you want before Friday night, not after. Second, being a decent partner: knowing where she is in her cycle makes you the guy who shows up with the right energy on the right week. Third, the surprise factor: most guys operate on zero data and pure vibes, and the vibes have a well-documented failure rate.
How RAWDOGGER works
One input: the first day of her last period (plus cycle length if you know it). The app does the biology — ovulation lands about 14 days before the next period, sperm survive up to 5 days, the egg lasts about a day — and paints the month red, yellow, and green. Red means the danger week. Yellow means the math is fuzzy. Green means the odds are with you. The free tier shows the current week; Full Send ($4.99 once, no subscription) unlocks the full month calendar, crew voice alerts, and roster mode.
The honest-odds part (read this)
Calendar math is real biology but it is not birth control. Cycles vary — only about 13% run exactly 28 days — and calendar-based methods fail for roughly 1 in 4 couples per year in typical use. RAWDOGGER is a cycle awareness tool: it makes you smarter about the odds, it does not change them. It is not a contraceptive, not FDA-anything, and not medical advice. We put that in the app too, in bigger letters than any app you've met.
Her data never leaves your phone
This app stores one date and one number, locally, on your device. No account, no server, no cloud sync, no analytics on her cycle. Nothing to breach, nothing to subpoena. And a word from the crew: tracking is a team sport — tell her. The app works better with her real numbers, and "I built us a calendar" is a much better conversation than the alternative.
Get it
Open RAWDOGGER — free, ten seconds to set up. Then meet the crew who deliver your alerts, or go deeper on how the window actually works.