Triangular Lake vs Boulder Logbook
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Triangular Lake
This mobile guidebook helps bouldering enthusiasts find and understand climbing problems at Lietlahti and Triangular Lake. It features detailed information on sectors, problem lines with photos, grades, danger levels, and spotting tips. An offline map and search filters enhance navigation and problem selection.
- Bouldering problem search
- Detailed problem descriptions
- Photos of climbing lines
- Offline map for navigation
- Search filters
- Spotting tips
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Triangular Lake is a mobile guidebook for bouldering locations Lietlahti and Triangular Lake. Being one of the largest bouldering areas in Russia, Triangular Lake is rich in history. As for Lietlahti, it is a newly found area located 3 km away from Triangular Lake. The main objective of the guidebook is to simplify the search of problems, boulders and sectors making it easy and comprehensible. The information in the guidebook is as follows: - sectors (boulders/walls) are joined in areas; - photos depict the lines of the problems; - in each problem description there is information on its grade, danger level, desired number of crash pads as well as some spotting tips. The guidebook also provides information about starting position and the line of each bouldering problem. To simplify the selection of problems, search filters are available. For navigation please use offline map that does not require an internet connection. The guidebook provides information on the majority of existing boulder problems and projects. Taking into account high climbing potential of the area, we admit the necessity of further development and therefore we would be grateful for any relevant information on those problems and projects that have not been discovered so far.
Boulder Logbook
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Boulder Logbook allows you to track your boulder sessions! Features: - Create a custom Grade System used by your gym - Maintain multiple Grade Systems and select a default one - Log all tops for each sessions and optionally specify a flash, an attempt or an onsight - View your progress with 3 beautiful diagrams - Select custom App Icons - No in-app purchases or ads
Screenshots
Verdict
The clearest difference is device support: Triangular Lake at 3 against Boulder Logbook's 1. Triangular Lake also leads on iOS requirement (15.0 vs 18.6). On price, update cadence, ads 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.
Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.
| Parameter | Triangular Lake | Boulder Logbook |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 7 months | Every 7 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 74 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Mikhail Barinov | Martin List |
In-app purchases
Triangular Lake
No in-app purchases
Boulder Logbook
No in-app purchases
Questions
Is Triangular Lake free?
Is Boulder Logbook free?
Do Triangular Lake or Boulder Logbook have ads?
Which is updated more often, Triangular Lake or Boulder Logbook?
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