Fan Buddy pulls live weather for your ZIP code, calculates EMC for your crop, and alerts you the moment conditions change — so you know when to start your fans and when to shut them off. No guesswork. No sensors required.
30-day free trial · no credit card required · cancel anytime
EMC Calculator & Fan Runtime Estimator are free forever
Every 3 hours, Fan Buddy fetches current weather conditions for each bin's ZIP code, calculates the EMC for your crop, and compares it to your active job's goal. If the recommendation changes — favorable to unfavorable, or back again — you get an alert right away.
Conditions are based on the weather station nearest to each bin's ZIP code — not on-site sensors. Always cross-reference with your own observations when it matters most.
EMC is moving in the right direction for your goal — whether you're drying, conditioning, or rehydrating. Time to run.
Conditions shifted against your goal — running fans could work against you. Fan Buddy tells you to hold off.
Around the clock, including overnight and weekends — even when you're not logged in.
One app. Every tool a grain farmer needs to protect quality and cut electricity costs.
Fan Buddy checks your ZIP code weather every 3 hours and alerts you the moment conditions flip — favorable or unfavorable — for your active job.
Color-coded fan recommendations based on live weather and your grain's current moisture — green means run, red means stop.
Enter your CFM/bu and moisture target. Fan Buddy estimates the hours and calendar days to get there using your local forecast.
See upcoming aeration windows at a glance. Goal-based color bands show exactly which forecast hours are worth running.
Track every drying or conditioning job per bin — start moisture, target, fan sessions, samples, and season history all in one place.
Record grain moisture samples as you go. Fan Buddy recalculates your remaining runtime estimate automatically with each new reading.
Generate branded PDF reports by job, bin, full season, or all-time. Share with your agronomist or keep for your records.
Visualize how EMC, fan hours, and electricity cost have tracked across your season — per bin or across your whole operation.
Enter your motor size and electricity rate and Fan Buddy calculates the exact cost of every fan session — so you know your true cost of drying, not just a guess.
Real feedback from real operations.
"I used to walk out to the bins every morning and just guess. Now Fan Buddy sends me an alert when it's time to run — I've already saved a bin of corn this fall that I would have over-dried."
"The EMC calculator alone is worth it. I've been using the extension spreadsheet for years but this is way faster and it's right on my phone. The 5-day forecast chart is a game changer."
"Set it up in about 10 minutes. Added all four of my bins, started a job, and the next morning I had an alert telling me conditions were good. Simple as it gets."
"I used to walk out to the bins every morning and just guess. Now Fan Buddy sends me an alert when it's time to run — I've already saved a bin of corn this fall that I would have over-dried."
EMC equations calibrated per crop type — not a one-size-fits-all formula.
Try everything free for 30 days. No credit card needed to start.
after your free trial · cancel anytime
No credit card required to start your trial.
Month to month, no commitment. Cancel anytime and your data stays safe. Come back next season and everything — your bins, jobs, samples, and history — is right where you left it.
Always free: The EMC Calculator and Fan Runtime Estimator are free forever — no subscription required, ever.