Callus - Climbing Log
Health & Fitness
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Callus is a climbing training log for climbers who train with intention. Log hangboard work, pull strength, sends and attempts, and project sessions — then read your season on a map-inspired dashboard.
LOG WHAT MATTERS
• Hangboard — edge depth, load, sets, hang time, and session quality
• Pull strength — weighted work and bodyweight reps with automatic % bodyweight
• Climbing — grades, sends, attempts, session counts, and optional project links
• Notes and custom entries for mobility, rehab, or anything else in your plan
SEE YOUR TRAINING
• Home — PRs, latest send, training mix, and recent volume
• Stats — hangboard peaks by edge and pull strength summaries
• Charts — grade progression and session trends over time
• Path — goal-grade benchmarks, weakness radar, and waypoints
• Projects — linked sessions with automatic send detection
CLIMB WITH YOUR CREW (optional)
• Find real climbing gyms and crags near you on a map styled like a topo sheet
• Plant a flag to show your crew where you're headed — and see who else is out
• A shared calendar of check-ins, plus crew and per-gym session chat
• Private by design — only your crew sees your flags. Create or join a crew with a code or QR, and leave anytime
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Callus Membership is an auto-renewing subscription: $2.99/month after a 7-day free trial. Payment is charged to your Apple ID and renews automatically unless canceled at least 24 hours before the end of the period. Manage or cancel anytime in your Apple ID settings.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vRkVWIjRbIyry7lHSvzjYGMnBEx6eMRqniZVhvFGLrbkQpQGmCLKRaIWvss8jzbGIQwMhvS7MEDrIho/pub
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Callus is now free — no subscription, no trial.
• LOAD MAP: a body heat map on the Log tab shows which muscle groups you've been working.
• Field timer for hangboard and pull sessions.
• Edit and delete log entries. Save custom workouts for quick re-logging.
• Notes now surfaces up to 14 training insights, prioritised by what matters most.
• Set your target grade from the header; the Path tab follows it.
• Send feedback straight from Settings.
• Keyboard, swipe-back, and tap-target fixes throughout.
The developer, Phong Davis Nguyen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Health & Fitness
- Contact Info
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Phong Davis Nguyen
- Size
- 75.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
- iPhone
- Languages
- English
- Age Rating
9+
- 9+
- Contains
Health or Wellness Topics
- Copyright
- © 2026 Phong Davis Nguyen
