Darth Grader
Climbing Grade Calculator
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Darth Grader is a climbing grade calculator that estimates the difficulty of a sport climbing route by breaking it down into individual sections of climbing separated by rests. The climber records each section from the ground to the anchor, including every movement, to produce an overall grade estimate for the route. Sections can include both route-climbing and bouldering sequences, allowing the calculator to account for variations in difficulty throughout the climb.
PH · launched Oct 21, 2026 · 2 upvotes (top 22%) · 1 view
Niche: specialized calculation tools · 551 launches, 66 in the last 7 days ▼ -7% · Explore this niche →
Category and tags
- Horizontal
- Analytics & BI
- B2C
- Not AI
- Hobby / open-source project
- Sports
- Outdoors
- Climbing
Visit website ↗ Source listing ↗
More like this: all 551 launches in specialized calculation tools →
Could you build this?
Partial The input UI and section-based calculation are easy to build, but producing a credible grade estimate depends on a calibrated model built from labeled climbing route data that a solo builder would not have.
What it would actually take: The app needs a data model for movements, holds, and rests, and a scoring function that maps them to a grade. Making that function accurate requires a dataset of routes with known grades and sender feedback, plus statistical or climbing-expert calibration. The UI and storage are simple; the grading model is the hard part.
Competitors
Other products that read as similar to this one : 131 launches clear the similarity bar, closest 8 shown.
Attention rank: #11 of 132 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 70 days after the earliest competitor.
- GradingPad · ph · 2026-11-01 · 1 upvotes · similarity 0.52
- Ascent Climber: Wall Jump Game · ph · 2026-11-12 · 1 upvotes · similarity 0.49
- EZ Grader Calc · ph · 2026-10-11 · 1 upvotes · similarity 0.48
- Quick Grade Calculator · ph · 2026-09-27 · 1 upvotes · similarity 0.44
- GPA Calculator · ph · 2026-10-23 · 1 upvotes · similarity 0.44
- Easy Grader · ph · 2026-10-04 · 1 upvotes · similarity 0.43
- Dameter · ph · 2026-10-31 · 4 upvotes · similarity 0.43
- BuyISmart · ph · 2026-10-30 · 1 upvotes · similarity 0.43
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