Tendon vs Boulder Sherpa
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Tendon
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Tendon – Your Smart Training Companion for Climbing and Bouldering Tendon helps you structure, track, and improve your training from your first boulders to your hardest projects. With precise logging, focused tools, and a clean interface, you can spend less time managing data and more time climbing. Main Features • Detailed training tracking for climbing, bouldering, and hangboard sessions • Campus board and pull-up training logs • Stretching and finger rehab with 8 guided exercises • Intelligent hangboard timer with automatic work/rest intervals • Tindeq Progressor integration for precise force measurement • GPS location tracking for gyms and outdoor spots • Advanced progress analytics and personal records • Calendar-based long-term training overview • Dark mode support • Full German and English localization • Offline-first usage with cloud sync For every climber Whether you are just starting or working on your next grade milestone, Tendon adapts to your level and helps you train with consistency. Why Tendon? • Clear, intuitive interface • No ads, no distractions • Free to use with all core features included • Built by climbers for climbers • Regular updates and feature improvements • Privacy-first and GDPR-compliant • Multi-device sync across your account
Boulder Sherpa
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BoulderLog helps you turn each climbing session into a clean, reusable record. Create sessions by date and gym, then add projects from wall photos. Crop the route, choose the route color, refine hold positions, and save a blueprint you can revisit later. With BoulderLog you can: - Log bouldering sessions and projects - Import or capture wall photos - Extract and refine route geometry locally - Edit hold placement and wall shape - Track grade, status, attempts, notes, and tags - Review saved projects in your library - Export route blueprints as PNGs - See simple insights from your own climbing history BoulderLog is built for climbers who want a practical logbook, a visual record of projects, and a faster way to reflect on progress.
Screenshots
Verdict
The clearest difference is device support: Tendon at 2 against Boulder Sherpa's —. Tendon also leads on iOS requirement (15.1 vs 17.0). On price and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Tendon | Boulder Sherpa |
|---|---|---|
| Price | Free | Free |
| Ads | No | — |
| In-app purchases | No | No |
| Devices | iPhone, iPod — better | — |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 38 MB | 2 MB |
| Age rating | 12+ | 4+ |
| Developer | Soeren Jutzi | 睿凌 屠 |
In-app purchases
Tendon
No in-app purchases
Boulder Sherpa
No in-app purchases






