# Hidden Lines: Climbing — Home wall problem generator

> Home wall problem generator (iPhone/iPad app by Adam Pollard.)

- Source: https://appshunter.io/ios/app/hidden-lines-climbing/id6759708721 (this page in markdown: same URL + `.md`)
- Developer: [Adam Pollard](https://appshunter.io/developer/1880308902)
- Category: Health & Fitness, Sports
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 13 MB
- Languages: American English
- Released: 2026-04-09
- Data updated: 2026-06-17
- User reviews in markdown: https://appshunter.io/ios/app/hidden-lines-climbing/id6759708721/reviews.md

## What is Hidden Lines?

That moment on outdoor rock where you don't know if the problem goes. Where the beta isn't obvious and you aren't sure which foot to use. Hidden Lines brings that puzzle to your home wall. AI detects the holds. You choose the difficulty. The app generates a problem. And from there, it's on you.

HOW IT WORKS

1. Select a photo
Take a photo or choose an existing one of your home wall — woody, training board, spray wall, anything with holds.

2. Set up your wall
AI detects the holds. You label them crimp, sloper, etc. You set the sit start reach and wall dimensions.

3. Generate and climb
Pick a difficulty, choose which hold types to favour or avoid, toggle campus mode (or not). Then tap the sparkles to generate a problem.

FEATURES

- AI hold detection (no extra cost)
- Problem generator with configuration options (difficulty, favor unused holds, etc...)
- Adaptive Difficulty to fine-tune the problem generator to your wall and ability
- Avoid or focus on specific hold types, e.g. avoiding crimps to rest a tweaked pulley
- Create your own problems from scratch by tapping holds
- Hold heat map: see which holds are overused and which are gathering dust
- Rest timer (much needed when the psyche is high and you're giving send burns)
- Compatible with all wall types (e.g. feet allowed on handholds vs dedicated footholds)
- Save, manage, sort, and filter unlimited problems
- Track favorites/projects and which problems you've sent
- iPhone and iPad versions
- iCloud sync across all your devices
- Supports multiple walls
- Light and dark themes + hold display customisation (color, wall dimming, etc...)

PRICING

No ads. No subscriptions.
One purchase, for less than a coffee at the climbing gym.
14-day free trial.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Access | $3.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-04-09

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-17.*