Comparison

Triangular Lake vs Boulder Twist

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Bouldering problem search
  • Detailed problem descriptions
  • Photos of climbing lines
  • Offline map for navigation
  • Search filters
  • Spotting tips
Features
Read full description

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.

About

Boulder Twist

Features
Read full description

Turn your warm-up into a game! Boulder Twist is a playful twist on bouldering—literally. Inspired by the classic game of Twister, this app gives you and your climbing partner fun, randomized movement instructions using colored holds on the wall. How it works: Choose the colors available on your bouldering wall Take turns following movement prompts (e.g., "Left hand on red, right foot on green") Keep going until someone falls, taps out, or laughs too hard to continue Whether you're warming up or winding down, Boulder Twist is the perfect way to get moving, loosen up, and have a good time at the gym. Features: - Customize your color set to match your gym - Set on auto play with a timer (premium feature) - Read the instructions (premium feature) - Play solo or with a friend - Endless random challenges Great for kids, new climbers, or seasoned crushers looking for a fun warm-up Let the wall be your playground—start twisting! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Triangular Lake4 screens
Boulder Twist4 screens

Verdict

The call

The clearest difference is price: Triangular Lake at Free against Boulder Twist's $9.99. Triangular Lake also leads on in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement 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

CostPrice · In-app purchases · Ads · Monetization

Triangular Lake is free to download; Boulder Twist costs $9.99 up front. Boulder Twist sells 3 in-app purchases, starting at $0.99 per 7 days. Triangular Lake asks for nothing beyond the download.

UpkeepUpdate frequency

Triangular Lake ships an update every 7 months, Boulder Twist every 48 months. The most recent releases landed on September 19, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 4 level
Triangular Lake versus Boulder Twist: the parameters behind the verdict, then further details
ParameterTriangular LakeBoulder Twist
PriceFree — better$9.99
Positive reviews100.0% of reviews—
Update frequencyEvery 7 months — betterEvery 48 months
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size74 MB34 MB
Age rating4+4+
DeveloperMikhail BarinovMiguel Correia

In-app purchases

None

Triangular Lake

No in-app purchases

3 purchases

Boulder Twist

Subscriptions2
  • Weekly$0.997 Days
  • Yearly$6.991 Year
One-time1
  • Lifetime$24.99

Questions

Is Triangular Lake free?
Triangular Lake is free to download, with no in-app purchases.
Is Boulder Twist free?
Boulder Twist costs $9.99, and also offers in-app purchases.
Do Triangular Lake or Boulder Twist have ads?
Boulder Twist shows ads; Triangular Lake does not.
Which is updated more often, Triangular Lake or Boulder Twist?
Triangular Lake ships an update every 7 months, and Boulder Twist every 48 months. Most recently, Triangular Lake was updated on September 19, 2026 and Boulder Twist on September 17, 2026.

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