# LapRF Timing — Racing Drone Timing System

> Racing drone lap timing system using video downlink transmitter detection. (iPhone/iPad app by ImmersionRC Limited.)

- Source: https://appshunter.io/ios/app/laprf-timing/id1447903106 (this page in markdown: same URL + `.md`)
- Developer: [ImmersionRC Limited](https://appshunter.io/developer/1447903105)
- Category: Utilities
- Price: Free
- Rating: 1.80/5 from 6 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.3 · 26 MB
- Languages: American English
- Released: 2019-01-03
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/laprf-timing/id1447903106/reviews.md

## What is LapRF Timing?

The iOS lapRF app supports ImmersionRC's lapRF racing drone tracking hardware.

Race Drones (quadcopter) register lap times by detecting their video downlink transmitter as they pass through the start/finish gate.

## Key features

- Supports ImmersionRC lapRF hardware
- Tracks racing drone lap times
- Detects video downlink transmitter
- Records start/finish gate passes

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/laprf-timing/id1447903106/reviews.md

### 5/5 — Great app for my rf puck

*2022-03-02*

The app works great! No prblem so far.

### 3/5 — Functional

*2022-01-08*

Fairly basic, but works.

It would be useful if the app prevented the device from sleeping while a race is on.

### 1/5 — Rf lap timer

*2019-10-23*

They need to update the app constantly crashes

### 1/5 — crashes when starting a race on latest iOS.

*2019-10-14*

useless till updated

## Frequently asked questions about LapRF Timing

### What hardware does LapRF Timing support?

LapRF Timing specifically supports ImmersionRC's lapRF racing drone tracking hardware. It is designed to work in conjunction with this specialized equipment to enable drone lap timing.

### How does LapRF Timing record lap times?

The app records lap times by detecting the racing drone's video downlink transmitter as it passes through the start/finish gate. This system allows for automated tracking of race laps.

### What devices is LapRF Timing compatible with?

LapRF Timing is compatible with a range of Apple devices, including iPhone, iPad, iPod, and Apple Watch. This broad compatibility allows users to track races on their preferred devices.

### What is the age rating for LapRF Timing?

LapRF Timing has an age rating of 4+. This indicates it is suitable for a wide audience, though its primary use is for drone racing enthusiasts.

### When was LapRF Timing last updated?

The latest version of LapRF Timing, 2.3, was last updated on November 11, 2019. The app was initially released on January 3, 2019.

### Does LapRF Timing have ads?

LapRF Timing does not contain advertisements. The app is free to download and use without any ad interruptions.

### What is the user rating for LapRF Timing?

LapRF Timing has a user rating of 1.8 stars based on 6 ratings. This suggests a mixed reception from its user base.

## Version history (last 5 releases)

### 2.3 — 2019-11-11

Attempt to fix yet another random crash caused by iOS v13

### 2.1 — 2019-11-04

Fixed yet another crash related to iOS 13 changes
Reworked display generation for the main race page to work better on more devices

### 2.0 — 2019-11-01

Fix crash introduced by iOS 13 (related to Bluetooth location permissions)

### 1.9 — 2019-01-03

- Resolved crash which occurs some time after switching to a non-existent LapRF in WiFi mode. 
- Enabled the app to run in the background (for critical functions, not audio for the moment).

### 1.8 — 2019-01-02

No release notes.

## More apps by ImmersionRC Limited

- [iTelemetry iOS](https://appshunter.io/ios/app/itelemetry-ios/id1448126217)

All apps by ImmersionRC Limited: https://appshunter.io/developer/1447903105

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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 2026-06-10.*