The Bouldering Guidebook vs Callus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Bouldering Guidebook
This app provides personalized bouldering training programs, structured strength and conditioning, and detailed progress tracking for intermediate to advanced climbers. It includes gym, hangboard, and climbing workouts, along with recovery protocols. Access requires a subscription after a free two-week trial.
- Personalized bouldering training program
- Structured strength & conditioning
- Gym, hangboard, and climbing workouts
- Progress tracking & analytics
- Recovery protocols
- Future program updates
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The Bouldering Guidebook is a subscription-based training system for intermediate and advanced boulderers. The app requires an account to access any features. Creating an account starts a free two-week trial, after which a monthly subscription is required for continued access. All features and screenshots shown are available only to trial users or active subscribers. Included With Free Trial / Subscription: • Full personalised bouldering training program • Structured strength & conditioning sessions • Gym, hangboard, and climbing workouts • Progress tracking & analytics • Recovery protocols • All future program updates included
Callus
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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 — 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
Screenshots
Verdict
The clearest difference is iOS requirement: The Bouldering Guidebook at 13.0 against Callus's 15.1. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. The Bouldering Guidebook sells 1 in-app purchase, starting at $39.00 per month and Callus sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | The Bouldering Guidebook | Callus |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | — | Every 3 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 50 MB | 72 MB |
| Age rating | 17+ | 4+ |
| Developer | Bouldering Guidebook LLC | Phong Davis Nguyen |
In-app purchases
The Bouldering Guidebook
- Monthly Subscription14 Days trial$39.001 Month
Callus
- Callus Membership7 Days trial$2.991 Month









