Comparison

Chronocurl Pro vs Boulder Block App

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

Head to head
About

Chronocurl Pro

Features
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Chronocurl is a laser stopwatch system useful to calculate relevant information for curling players. The curling delivery is a complex process. In order to progress, it is very important to get accurate feedback in order to quantify the diverse parameter composing the delivery. Three main parameter define the trajectory of a curling stone: the direction, the rotation speed and the linear speed of the rock. Chronocurl quantifies the linear speed of the curling rock when it cuts the laser beam. Using the value of speed, the player can easily work on his consistency without having to refer visually to the distance travelled by the rock. The app lets you read speed data in numerous units such as km/h, mph, m/s. The app also allow conversion of speed data at the hog line into approximation of commonly used split times such as back-line to hog-line or T-line to hog line. Pro Version The Pro version of the app allows the combination of multiple Chronocurl within a single pratice. This way, Chronocurl will give you the speed of the rock but can also measure split times with great precision. The combination of multiple Chronocurl (up to 6 units on 2 sheets) multiplies the number of possibilities. The Pro version of the app also allows audio feedback. This way a player can receive his data without even looking at the screen. Some features : All Speed Units : Free and Pro Version Dual display : Free and Pro Version Detail display : Free and Pro Version Rock Circumference Setting: Free and Pro Version Between shot timer : Free and Pro Version Hog to hog split times : Pro Version Audio feedback : Pro Version Side by side practice : Pro Version Multi-Chronocurl : Pro Version Sharing practice data : Pro Version Multiple Rock circumference: Pro Version

About

Boulder Block App

This app is a companion for a physical climbing product, offering tutorials, digital versions of challenge decks, and tools to create and share your own climbing routes. Connect with a global community of climbers, track your progress, and discover new challenges.

Highlights
  • Climbing route tutorials
  • Digital challenge decks
  • Interactive route builder
  • Community route sharing
  • Progress tracking
  • Video send uploads
Features
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The official companion app for your Boulder Block by ClimbersGift. — RULES & TUTORIALS — New to the Boulder Block? Start here. Learn the rules, watch tutorials, and get up to speed fast — so you can focus on climbing, not figuring it out. — DIGITAL CHALLENGE DECK — All 30+ graded routes from your physical Challenge Deck, now in your pocket. Browse from beginner to expert, follow finger sequences step by step, and track your progress as you work through every problem. — INTERACTIVE ROUTE BUILDER — Build your own boulder problems. Place holds, set the grade, name your route, and publish it to the community. Infinite combinations, infinite challenges. — COMMUNITY & SENDS — See what Boulder Block owners around the world are working on. Attempt their routes, upload video of your sends, leave comments, and connect with climbers everywhere. Free. No subscriptions. No in-app purchases.

Screenshots

Chronocurl Pro4 screens
Boulder Block App4 screens

Verdict

The call

The clearest difference is price: Boulder Block App at Free against Chronocurl Pro's $21.99. Boulder Block App also leads on update cadence (every 3 months vs every 17 months). Chronocurl Pro's advantage is iOS requirement (11.0 vs 17.0). On 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

CostPrice · In-app purchases · Ads · Monetization

Boulder Block App is free to download; Chronocurl Pro costs $21.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Chronocurl Pro ships an update every 17 months, Boulder Block App every 3 months. The most recent releases landed on October 18, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
Chronocurl Pro versus Boulder Block App: the parameters behind the verdict, then further details
ParameterChronocurl ProBoulder Block App
Price$21.99Free — better
Rating—1.0 (1 ratings) — better
Positive reviews—0.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 17 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.0 — better17.0
Further details — not scored
Size36 MB29 MB
Age rating4+4+
DeveloperGuy SimardMatthew Canoy

In-app purchases

None

Chronocurl Pro

No in-app purchases

None

Boulder Block App

No in-app purchases

Questions

Is Chronocurl Pro free?
Chronocurl Pro costs $21.99, with no in-app purchases.
Is Boulder Block App free?
Boulder Block App is free to download, with no in-app purchases.
Do Chronocurl Pro or Boulder Block App have ads?
Neither Chronocurl Pro nor Boulder Block App shows ads.
Which is updated more often, Chronocurl Pro or Boulder Block App?
Chronocurl Pro ships an update every 17 months, and Boulder Block App every 3 months. Most recently, Chronocurl Pro was updated on October 18, 2026 and Boulder Block App on October 17, 2026.

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