# Chronocurl vs DCO Central

The clearest difference is update cadence: DCO Central at monthly against Chronocurl's every 9 months. Chronocurl's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 15.5). On price, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Chronocurl ships an update every 9 months, DCO Central monthly. The most recent releases landed on June 11, 2026 and September 6, 2026 respectively.

## The numbers

| Metric | Chronocurl | DCO Central |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Monthly** |
| Monetization | Free | — |
| Size | 34 MB | 113 MB |
| Requires iOS | **12.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 9+ |
| Developer | [Guy Simard](https://appshunter.io/developer/1124720226) | [World Anti-Doping Agency](https://appshunter.io/developer/408057953) |

## What reviewers say

### Chronocurl

[App page](https://appshunter.io/ios/app/chronocurl/id1124720227)

This app provides a laser stopwatch system to help curling players analyze and improve their rock delivery. It quantifies linear speed, rotation, and direction, offering detailed feedback for enhanced consistency and performance.

**Highlights:** Laser stopwatch system, Quantifies linear speed, Measures rotation speed, Analyzes delivery direction, Speed data in multiple units, Hog line speed conversion, Between shot timer

**Features:** macOS Compatibility

**In-app purchases:** none


### DCO Central

[App page](https://appshunter.io/ios/app/dco-central/id1499909766)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Chronocurl free?

Chronocurl is free to download, with no in-app purchases.

### Is DCO Central free?

DCO Central is free to download, with no in-app purchases.

### Do Chronocurl or DCO Central have ads?

Neither Chronocurl nor DCO Central shows ads.

### Which is updated more often, Chronocurl or DCO Central?

Chronocurl ships an update every 9 months, and DCO Central monthly. Most recently, Chronocurl was updated on June 11, 2026 and DCO Central on September 6, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*