# Chronocurl Pro vs Racing Slips

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.

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.

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.

## The numbers

| Metric | Chronocurl Pro | Racing Slips |
| --- | --- | --- |
| Price | $21.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/racing-slips/id1412589857/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 4 days** |
| Monetization | — | Free with in-app purchases |
| Size | 36 MB | 19 MB |
| Requires iOS | **11.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Guy Simard](https://appshunter.io/developer/1124720226) | [Stephan Monette](https://appshunter.io/developer/1299469285) |

## What reviewers say

### Chronocurl Pro

[App page](https://appshunter.io/ios/app/chronocurl-pro/id1154050351)

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

**In-app purchases:** none


### Racing Slips

[App page](https://appshunter.io/ios/app/racing-slips/id1412589857)

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:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Sharing | $4.99 | per month |
| Annual Premium Access | $8.99 | per year |


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