SendTemps: Climbing Friction

Crag Weather & Dry Out Score

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Outdoor rock climber? Check today's friction score and know when the rock is dry after rain. Informational guide for sandstone, granite, and limestone crags. Stop guessing whether today's conditions are good for climbing. SendTemps checks the local temperature, humidity, dew point, and wind at your crag and turns them into a clear friction score and send window. Every outdoor climber knows the frustration: a crag that felt sticky last weekend now feels greasy, and no generic weather app tells you why. The reason is friction — a combination of temp, humidity, dew point gap, wind, and your rubber choice. HOW IT WORKS 1. Set up your profile: sweat level, rubber type, and your home crag with rock type (sandstone, granite, limestone, or conglomerate). 2. SendTemps checks the current weather at your crag's coordinates. 3. You get a friction score from 0 to 100 with a GO, CAUTION, or STOP label, plus the four weather values that drove it. It takes 20 seconds to set up. No account required. CORE FEATURES (FREE) Friction Score See today's score for your home crag with a color-coded label and the four component values (temperature, humidity, dew point gap, wind). Rock Type Awareness Choose your crag's rock type. Results come with a reminder to respect wet-rock ethics, especially for porous sandstone and conglomerate. Local Weather Current temp, humidity, dew point, and wind from your crag's coordinates — not a distant city. Upgrade to Pro for deeper insights: - Up to ten saved crags with side-by-side comparison - 7-day hourly friction forecast - Top 3 send windows per day - Rock-type dry-out timer after rain (sandstone, granite, limestone, conglomerate) - 72-hour rainfall tracker per crag - Daily send temps alert and dry-out ready alert PRIVACY FIRST All data is stored locally on your device. No account, no sign-in, no tracking. Location is used only to fetch weather data from Open-Meteo. Your coordinates are never stored on any server. This app provides condition estimates based on weather data and general climbing community guidelines. It is not a substitute for in-person rock assessment, experienced climbing partners, or professional guiding. Always verify rock condition by touch and respect local closures after rain. Weather data by Open-Meteo. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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The developer, JUHWAN PARK, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

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    The following data may be collected but it is not linked to your identity:

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Information

Seller
JUHWAN PARK
Size
30.2 MB
Category
Lifestyle
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Mac
    Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 osk
  • Developer Website
  • Privacy Policy

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