# Checkpoint Clock vs Racing Slips

The clearest difference is price: Racing Slips at Free against Checkpoint Clock's $3.00. Racing Slips also leads on rating (5.0 vs 4.0) and update cadence (every 4 days vs every 31 months). Checkpoint Clock's advantage is in-app purchases (none vs 2) and iOS requirement (12.0 vs 15.6). On ratings volume, ads and device support there is nothing between them.

Racing Slips is free to download; Checkpoint Clock costs $3.00 up front. Racing Slips sells 2 in-app purchases, starting at $4.99 per month. Checkpoint Clock asks for nothing beyond the download.

Racing Slips holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Checkpoint Clock ships an update every 31 months, Racing Slips every 4 days. The most recent releases landed on June 9, 2026 and August 22, 2026 respectively.

## The numbers

| Metric | Checkpoint Clock | Racing Slips |
| --- | --- | --- |
| Price | $3.00 | **Free** |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/checkpoint-clock/id549741037/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/racing-slips/id1412589857/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 31 months | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 9 MB | 19 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [David Bireta](https://appshunter.io/developer/338634093) | [Stephan Monette](https://appshunter.io/developer/1299469285) |

## What reviewers say

### Checkpoint Clock

[App page](https://appshunter.io/ios/app/checkpoint-clock/id549741037)

This app functions as a precise timing device for Time-Speed-Distance road rallies. It records split times with optional car numbers and allows for dynamic adjustment of time units. It can also serve as a time reference for 'Seat of the Pants' rally classes.

**Highlights:** Split time recording, Optional car number logging, Scrollable log area, Dynamic time unit adjustment, Time of day clock synchronization, Decimal minute 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 Checkpoint Clock free?

Checkpoint Clock costs $3.00, with no in-app purchases.

### Is Racing Slips free?

Racing Slips is free to download, with in-app purchases available.

### Which has better reviews, Checkpoint Clock or Racing Slips?

Racing Slips is rated higher. Checkpoint Clock averages 4.0 out of 5 from 1 ratings, while Racing Slips averages 5.0 from 1 ratings.

### Do Checkpoint Clock or Racing Slips have ads?

Neither Checkpoint Clock nor Racing Slips shows ads.

### Which is updated more often, Checkpoint Clock or Racing Slips?

Checkpoint Clock ships an update every 31 months, and Racing Slips every 4 days. Most recently, Checkpoint Clock was updated on June 9, 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.*