FretCast estimates indoor humidity from your local weather and scores crack and warp risk for your specific instrument — no sensor required.
Live Risk Score
Features
Uses your local dew point and temperature to estimate indoor humidity — no Bluetooth sensor or hardware required.
Sitka Spruce cracks differently than Cedar or Rosewood. FretCast scores risk based on your exact wood type and storage method.
Clear guidance every day: when to humidify, when to move to a case, when to relax. No guessing.
See upcoming risk scores for the whole week. Plan ahead before a cold front or heating spike hits. (Pro)
Tell us your room size and humidifier output — get the exact run time needed to reach your target RH. (Pro)
Rapid humidity swings move necks. Know if you'll be retuning once or three times before you even pick it up. (Pro)
Supported Wood Types
How It Works
Tell us your heating type, home age, and indoor temperature once during setup
Select wood type and storage method for each guitar, violin, or ukulele
FretCast fetches your local weather and calculates today's risk with a clear action plan
Free to use. Pro features $4.99/month.
Download on the App Store