Comparison

Chronocurl Pro vs Racing Slips

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

Racing Slips

Record and access your drag racing time slips digitally. Calculate density altitude to predict your next ET dial and eliminate the need for paper slips. View qualification, pairing, and ladder reports easily.

Highlights
  • Digital time slip recording
  • Density altitude calculation
  • ET dial prediction
  • Qualification reports
  • Pairing reports
  • Ladder reports
Features
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Use our app to view your Drag Racing Time Slips! Our app also record your density altitude at the time of your race so you can use the data to predict your next ET dial. No more paper to go through, all your racing time slips in the palm of your hand using your iPhone or iPad! Access all the qualification, pairing and ladder reports using our TimeSlip app! This app can be used at the Napierville Dragway Tracks in Québec. You can review our "Terms of Use" here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ You can review our "Privacy Policy" here: https://www.dynogeeks.com/privacy.html

Screenshots

Chronocurl Pro4 screens
Racing Slips4 screens

Verdict

The call

The clearest difference is price: Racing Slips at Free against Chronocurl Pro's $21.99. Racing Slips also leads on update cadence (every 4 days vs every 17 months). Chronocurl Pro's advantage is in-app purchases (none vs 2) and iOS requirement (11.0 vs 15.6). On ads 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

Racing Slips is free to download; Chronocurl Pro costs $21.99 up front. Racing Slips sells 2 in-app purchases, starting at $4.99 per month. Chronocurl Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Chronocurl Pro ships an update every 17 months, Racing Slips every 4 days. The most recent releases landed on September 14, 2026 and August 22, 2026 respectively.

Scorecard4 real differences · 5 level
Chronocurl Pro versus Racing Slips: the parameters behind the verdict, then further details
ParameterChronocurl ProRacing Slips
Price$21.99Free — better
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 17 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better15.6
Further details — not scored
Size36 MB19 MB
Age rating4+4+
DeveloperGuy SimardStephan Monette

In-app purchases

None

Chronocurl Pro

No in-app purchases

2 purchases

Racing Slips

Subscriptions2
  • Premium Sharing$4.991 Month
  • Annual Premium Access$8.991 Year

Questions

Is Chronocurl Pro free?
Chronocurl Pro costs $21.99, with no in-app purchases.
Is Racing Slips free?
Racing Slips is free to download, with in-app purchases available.
Do Chronocurl Pro or Racing Slips have ads?
Neither Chronocurl Pro nor Racing Slips shows ads.
Which is updated more often, Chronocurl Pro or Racing Slips?
Chronocurl Pro ships an update every 17 months, and Racing Slips every 4 days. Most recently, Chronocurl Pro was updated on September 14, 2026 and Racing Slips on August 22, 2026.

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