# Open Lap — Open slot-car racing 1:32

> Slot car race management app for Carrera DIGITAL 124/132 systems. (iPhone/iPad app by Philipp Anné.)

- Source: https://appshunter.io/ios/app/open-lap/id1448048406 (this page in markdown: same URL + `.md`)
- Developer: [Philipp Anné](https://appshunter.io/developer/965549566)
- Category: Entertainment, Utilities
- Price: Free
- Rating: 5.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 11.0 · 23 MB
- Languages: American English
- Released: 2019-01-06
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/open-lap/id1448048406/reviews.md

## What is Open Lap?

Open Lap is a simple, no-nonsense slot car race management app for Carrera® DIGITAL 124/132 systems.

In a nutshell, Open Lap lets you

- connect your mobile device via Bluetooth using Carrera AppConnect®, or a suitable serial to USB On-The-Go adapter cable.
- take it easy during free practice, go for fastest lap in qualifying, or compete in lap or time based race sessions.
- get informed about important events, such as fastest laps or low fuel conditions, by personalized voice messages.
- adjust vehicle speed, brake force and fuel tank size for each car individually.
- measure up to three intermediate or sector times (S1, S2, S3) using Carrera® Check Lane or compatible equipment.
- send out the pace car in case of emergency, or temporarily disable lap counting during a "yellow flag" phase.

Some features, such as the start light and pace car buttons, will require Carrera® Control Unit firmware version 3.31 or higher. Carrera® Check Lane support generally requires at least firmware version 3.36.

## Key features

- Race management modes (practice, qualifying, race)
- Individual car settings (speed, brake, fuel)
- Intermediate/sector time tracking
- Personalized voice alerts
- Pace car and yellow flag control
- Bluetooth connectivity via Carrera AppConnect

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/open-lap/id1448048406/reviews.md

### 5/5 — Great App

*2020-09-14, version 1.7.0*

This app works perfectly with my Carrera digital 132 system.  If you want a simple app that shows lap times, especially, if you are just practicing this app works great!  It’s even free.

### 5/5 — Amazing

*2020-04-20, version 1.7.0*

This app worked perfectly with my Carrera digital 1:32 track and is so much better than the official app by Carerra. The fact that it’s free makes this a no brainer, excellent job.

## Frequently asked questions about Open Lap

### What Carrera systems does Open Lap support?

Open Lap is designed for Carrera DIGITAL 124/132 systems. It connects via Bluetooth using Carrera AppConnect or a compatible serial to USB On-The-Go adapter cable.

### What race modes are available in Open Lap?

Open Lap offers several race modes, including free practice, qualifying for the fastest lap, and competitive sessions based on laps or time.

### Can I customize car performance in Open Lap?

Yes, you can individually adjust vehicle speed, brake force, and fuel tank size for each car within the app.

### Does Open Lap provide race alerts?

Open Lap can provide personalized voice messages for important events, such as achieving the fastest lap or indicating low fuel conditions.

### What are the firmware requirements for Open Lap features?

Some features, like the start light and pace car buttons, require Carrera Control Unit firmware version 3.31 or higher. Carrera Check Lane support generally needs firmware version 3.36 or higher.

### Does Open Lap have ads?

No, Open Lap does not contain advertisements. It is a free application with no in-app purchases or ads.

### What devices is Open Lap compatible with?

Open Lap is available for iPhone, iPad, and iPod devices. It was last updated on February 6, 2021.

### How does Open Lap handle race interruptions?

Open Lap allows you to send out the pace car in case of an emergency or temporarily disable lap counting during a 'yellow flag' phase.

## Version history (last 3 releases)

### 1.9.2 — 2021-02-06

- Add new configuration setting Connections: Demo Control Unit. Too many reviewers seem to mistake this app for some kind of motorsport manager game, so the demo mode will now be hidden by default.
- Improve Bluetooth LE connection handling.
- Use a menu toggle for switching sector times on and off. Using slides for selecting the alternative leaderboard view was not intuitive to some users, and this also turned out to be a performance bottleneck, especially with older devices.
- Send CU command #7 when a car finishes a race or qualifying session. When using the Carrera® Position Tower, this will make the respective driver ID blink.
- Add notification for new race leader.
- Add separate notification for qualifying session ended.
- Fix occasional screen flicker on some devices, especially when on-screen keyboard is displayed.
- Update leaderboard sort order also when race is paused.
- Minor UI improvements.
- Add French translation (courtesy of nico12).
- Reduce use of "nagging" dialog boxes.
- Reduce duplicated speech messages.

### 1.7.0 — 2019-01-12

-> Note that updating to this version will effectively reset all user settings to default values!

Changelog:
- Add SQLite storage engine to avoid uncaught QuotaExceededError exceptions. Note that this will effectively reset all user settings to default values.
- Use correct number of laps for finishing lap-based races.
- Do not count pit stops if race is finished.
- Prevent startlight from wrapping at some screen sizes.
- Add translations for "No Connection".
- Improve startup message.

### 1.6.3 — 2019-01-06

No release notes.

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## More apps by Philipp Anné

- [Softy Bahnplaner Couch Edition](https://appshunter.io/ios/app/softy-bahnplaner-couch-edition/id970006489)
- [The Seafarer](https://appshunter.io/ios/app/the-seafarer/id6467438352)

All apps by Philipp Anné: https://appshunter.io/developer/965549566

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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 2026-06-01.*