# Chronocurl Pro

> Chronocurl Pro (iPhone/iPad app by Guy Simard.)

- Source: https://appshunter.io/ios/app/chronocurl-pro/id1154050351 (this page in markdown: same URL + `.md`)
- Developer: [Guy Simard](https://appshunter.io/developer/1124720226)
- Category: Sports
- Price: $21.99
- Age rating: 4+
- Requires: iOS 11.0 · 36 MB
- Languages: American English
- Released: 2016-10-16
- Data updated: 2026-09-14
- User reviews in markdown: https://appshunter.io/ios/app/chronocurl-pro/id1154050351/reviews.md

## What is Chronocurl Pro?

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


## Version history (last 5 releases)

### 5.4 — 2025-02-07

1. If multiple results are displayed, show the result as soon as it is available instead of waiting until the end.
2. Improve the selection of players for a practice session.
3. Improve the selection of Chronocurls for a practice session.
4. Bold the displayed results.
5. Add new applications for sharing archived practice sessions.
6. Change the column names in the export file.
7. Allow selecting the active practice session in the practice form.

Allow selecting the active practice session in the practice form.

### 5.2 — 2023-08-29

Improved Bluetooth communication
Display warning messages in yellow when the system tries to fix the problem.
Increased the timeout time to 30 seconds between the 2 hoglines.
Added sensor sensitivity adjustment system.
Allow to customize the name of the Chronocurl.
Modification of the vibration detection according to the diameter.
Automatic selection of Chronocurls according to the number of lines necessary for the practice.
Fix for not saying vocally >>>, when the system is waiting for a Chronocurl

### 5.0.1 — 2021-11-09

Completely redesigned application.

### 5.0 — 2021-11-07

Completely redesigned application.

### 1.4 — 2018-04-30

This app has been updated by Apple to display the Apple Watch app icon.

Adjustment of parameters min max circumference 24-42 inches

## Apps similar to Chronocurl Pro

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [CoachNow: Sports Coaching App](https://appshunter.io/ios/app/coachnow-sports-coaching-app/id596598472) | 4.9 (12,626) | Free | Sports |
| [Onform: Video Analysis App](https://appshunter.io/ios/app/onform-video-analysis-app/id1490334045) | 4.8 (8,607) | Free | Sports |
| [The Last Rock Curling](https://appshunter.io/ios/app/the-last-rock-curling/id498419611) | 4.4 (215) | $1.99 | Sports |
| [Curling Tactic Board](https://appshunter.io/ios/app/curling-tactic-board/id6444427938) | — | Free | Sports |
| [Curlytics](https://appshunter.io/ios/app/curlytics/id1551493930) | 4.2 (5) | Free | Sports |
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## More apps by Guy Simard

- [Chronocurl](https://appshunter.io/ios/app/chronocurl/id1124720227)

All apps by Guy Simard: https://appshunter.io/developer/1124720226

## Related topics

[pro stone curling](https://appshunter.io/ios/topics/pro-stone-curling)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-14.*