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- Age
- 4+ years old
- Category
- Sports
- Price
- Free In-app purchases
- Languages
- 44 EN · FR +42
- Requires
- iOS 17+ iPhone · iPad
- Size
- 4.8 MB
- Version
- 1.2
Screenshots
See ApexLap in action
iPhone
iPad
Overview
What is ApexLap?
ApexLap turns your iPhone into a lap timer for track days. It detects the start and finish line automatically, times every lap with millisecond interpolation, and saves each lap the instant it completes, so a crash or a dead battery never costs you your data.
The free app already includes automatic timing, access to more than 500 built-in circuits worldwide including karting, and the ability to create your own start line for any track. Apex Pro adds a full data-logger: telemetry, video overlay export, lap comparison, external GPS receivers, OBD-II data, and progression tracking across sessions.
Read the full App Store description
Your phone becomes a professional data-logger. ApexLap times every lap automatically the moment you cross the start line — reliably, every single time.
Built for track days: cars, motorcycles and karting. No manual needed, readable in full sun through a visor, usable with gloves.
Reliable lap timing — free forever
- Automatic start/finish detection with millisecond interpolation
- Every lap is saved the instant it completes — a crash or dead battery never loses your data
- 500+ circuits built in worldwide, karting included — no second app to buy
- Create your own start line for any track in seconds
- Sessions per circuit, laps sorted by best time, best lap and theoretical best
- Your recorded laps, sessions and history are never locked behind a paywall
Apex Pro — the full data-logger
- Video overlay export that actually works: lap time, speed, G-force and track map burned into your footage, fast and reliable
- Full telemetry: speed traces, G-forces, auto sectors, live delta vs your best lap
- Lap comparison: overlay two laps and see exactly where the time is
- External 10 Hz GPS receivers (RaceBox, Garmin GLO, Dual…) and OBD-II engine data
- Progression analysis per circuit, session after session
- Setup sheets: tires, pressures and settings logged with each session
- CSV export, unlimited custom circuits
Try Apex Pro free for 7 days with the yearly plan. Monthly and one-time lifetime options available.
Your location data stays on your device. No account, no tracking.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://develak.com/apps/apexlap/privacy/
Highlights
What can you do with ApexLap?
ApexLap automatically times every lap on track days for cars, motorcycles, and karting, with optional telemetry, video overlay, and external GPS support.
Automatic Start/Finish Detection
ApexLap detects the start and finish line itself and times every lap with millisecond interpolation.
Lap Data Saved Instantly
Every lap is written to your phone the moment it completes, so a crash or a dead battery never loses your session.
500+ Built-In Circuits
Find your circuit in a worldwide library that already includes karting tracks, no second app needed.
Create Your Own Start Line
Draw a custom start line for any track in seconds, even if it isn’t in the built-in library.
Video Overlay Export (Apex Pro)
Burn lap time, speed, G-force, and a track map into your footage with a fast, reliable overlay export.
Full Telemetry & Lap Comparison
Review speed traces, G-forces, auto sectors, and a live delta, then overlay two laps to see exactly where the time was made or lost.
Who it’s for
Who is ApexLap for?
-
Track Day Drivers
You want a lap timer that just works, without manual setup, every time you go out on track.
-
Motorcycle Riders
ApexLap is readable in full sun through a visor and usable with gloves, so you can check your lap time without stopping.
-
Karting Racers
Built-in karting circuits and custom start lines mean you can time every session without a second app.
-
Drivers Who Want to Track Progress
Apex Pro’s progression analysis and setup sheets help you compare sessions and tune your car over time.
How it works
How does ApexLap work?
From “Choose or Create Your Circuit” to “Go Deeper With Apex Pro”, in 4 steps.
Choose or Create Your Circuit
Pick your track from more than 500 built-in circuits, or draw a custom start line in seconds.
Drive and Let ApexLap Time You
Mount your phone, drive, and ApexLap detects the start and finish line automatically for every lap.
Review Your Session
See your laps sorted by best time, along with your best lap and theoretical best for the session.
Go Deeper With Apex Pro
Unlock telemetry, video overlay export, lap comparison, and external sensor support for a full data-logger.
In depth
ApexLap, in detail
How Does ApexLap Time Laps Automatically?
ApexLap detects your start and finish line and times every lap with millisecond interpolation, without any manual input. Each lap is saved to your phone the instant it completes, so a crash or a dead battery never costs you your data.
The timing engine has been refined for short tracks and small kart circuits too: laps are now timed correctly on short ovals, and two laps are no longer merged into one.
What Does Apex Pro Add to ApexLap?
Apex Pro turns ApexLap into a full data-logger. It adds video overlay export that burns lap time, speed, G-force, and a track map into your footage, along with full telemetry: speed traces, G-forces, auto sectors, and a live delta against your best lap.
Apex Pro also supports external 10 Hz GPS receivers such as RaceBox, Garmin GLO, and Dual, plus OBD-II engine data. You get lap comparison to overlay two laps and see exactly where the time was made or lost, progression analysis per circuit, setup sheets for tires, pressures, and settings, unlimited custom circuits, and CSV export.
Does ApexLap Work for Both Cars and Karting?
Yes. ApexLap is built for track days across cars, motorcycles, and karting. It includes more than 500 built-in circuits worldwide, karting tracks included, and you can create your own start line for any track in seconds if yours isn’t already in the library.
Release notes
What’s new in ApexLap
Version
1.2
- RaceBox (Apex Pro): connect a RaceBox Mini, Mini S or Micro for 25 Hz GPS and far more precise lap and sector times.
- External GPS: automatic reconnection if the link drops, plus live satellite count and receiver battery in Devices.
- More accurate live delta, and smoother telemetry charts and CSV export with high-rate data.
- Stability improvements.
FAQ
ApexLap: your questions, answered
Something else? The ApexLap support page covers purchases, sync and settings, and lets you write to us directly.
Is ApexLap free?
Yes. ApexLap is free to download from the App Store. Optional in-app purchases unlock extra features; they are billed by Apple to your Apple Account, and you can manage them at any time in your account settings.
Which devices does ApexLap work on?
ApexLap works on iPhone and iPad with iOS 17.0 or later.
Is ApexLap free to use?
ApexLap is a free download, and automatic lap timing is free forever: your recorded laps, sessions, and history are never locked behind a paywall. Apex Pro is an optional upgrade that adds telemetry, video overlay, and other data-logger features.
What is included in the free version of ApexLap?
The free version includes automatic start/finish detection with millisecond interpolation, instant lap saving, access to more than 500 built-in circuits worldwide including karting, and the ability to create your own start line for any track.
What does Apex Pro unlock?
Apex Pro adds video overlay export, full telemetry with speed traces and G-forces, lap comparison, support for external GPS receivers and OBD-II data, progression analysis per circuit, setup sheets, CSV export, and unlimited custom circuits.
Can I use ApexLap with an external GPS receiver?
Yes, with Apex Pro you can use external 10 Hz GPS receivers such as RaceBox, Garmin GLO, and Dual for more precise telemetry.
Does ApexLap read OBD-II engine data?
Apex Pro can read OBD-II engine data alongside your lap timing and telemetry.
Can I export my lap data from ApexLap?
Apex Pro lets you export your data as CSV files, and you can also export video with lap time, speed, G-force, and a track map burned into the footage.
What languages is ApexLap available in?
ApexLap is available in 44 languages: Arabic, Bangla, Catalan, Chinese (Simplified), Chinese (Traditional), Croatian, Czech, Danish, Dutch, English, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Odia, Polish, Portuguese, Punjabi, Romanian, Russian, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Turkish, Ukrainian, Urdu and Vietnamese.
How do I get help with ApexLap?
Visit the ApexLap support page: it answers common questions about purchases, sync and settings, and has a contact form. You can also write to contact@develak.com. We read every message and reply personally.
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