Apex AIO System · Le Mans Ultimate · rFactor 2
LMU overlays, race engineer & setups in one app
Overlays for OBS and over the sim, a voice race engineer on push-to-talk, setups tuned from what you ask for, a live team pit wall on any device, and telemetry review of every lap you've driven.
- £4.99/month after the trial
- Signed installer, no SmartScreen warning
- No plugin needed for LMU
- Runs inside OBS's own browser
- v1.1.1 · Windows
- 01 · Top leftStandings. The whole field grouped by class, with gaps, average and best laps.
- 02 · Top centreRace control. Flags, start lights and local yellows by sector, without the stock HUD.
- 03 · Top rightRelative. The cars around you, and a blue-flag banner when a faster class is lapping you.
One plan7 days free, then £4.99/month
One race, lights to flag
Five moments from a 40-lap race and what the app has on screen at each of them.
Lap 01/40 · Lights out
Five reds, then green
Race Control shows the start lights and the race state, then keeps a sector rail up for the whole race. A local yellow in S2 lights S2 and nothing else.
Track limits count in the stewards' own points from the first corner: allowance left, what each cut was charged, and any penalty named as it lands.
On screen: Race Control · Track Limits
Lap 06/40 · Traffic
Hypercars coming through
The radar draws every car to one scale on both axes, so a car alongside is drawn alongside. A faster class closing from behind gets a halo.
The relative puts a blue-flag banner over the list with the car lapping you and the gap to it. Cars to yield to are tinted blue and traffic amber.
On screen: Radar · Relative
| 2 | HY#7 M. Conway | −4.1 |
| 3 | P2#22 F. Albuquerque | −2.9 |
| 9 | GT3#46 V. Rossi | −1.2 |
| 12 | GT3#63 T. Pereira | — |
| 11 | GT3#92 M. Christensen | +1.8 |
| 14 | GT3👻#88 D. Serra | +6.3 |
| 5 | HY#8 S. Buemi | +11.7 |
Lap 12/40 · Fuel call
Fuel to the end?
Press the button on your wheel and ask. The answer comes back over radio effects in under a second, worked out from your live telemetry.
28 questions like this one are answered on your PC, offline and free. Anything else goes to the AI engineer, with your voice transcribed locally.
On screen: Race engineer · Fuel
- Fuel to the end?
- Energy's the limit. Ten laps in it, twelve in the fuel. You'll need a stop.
Lap 22/40 · Pit window
In the box
Pit changes go over LMU's own REST API. Fuel, tyres and pressures are set from a wheel button with the in-game MFD off screen, and every value is read back from the game.
When the car stops, the damage panel becomes a countdown to release, built from the sim's own repair estimate. Repair and tyre time sit side by side, never summed.
On screen: Damage & Repair · Tyre Temps
Shown side by side — never summed
Lap 40/40 · Chequered flag
Where the time went
Every lap was written to a file as you drove it. Review reads them back with no account and no upload: speed, pedals, gear and steering against distance, a second lap laid underneath, and a chip per 500 m showing what each stretch cost.
Reference Pace puts your best lap against alien pace for your class and layout, on Ohne Speed's reference times.
On screen: Reference Pace · Review
Reference times by Ohne Speed
Everything an LMU driver needs, in one app
Pick a feature for the spec and a working rebuild of the app's own panel, then follow the link for the full page on it.
01 · OBS + in-game
LMU overlays for OBS and over the sim
Every widget has two destinations, an OBS Browser Source and the in-game layer, and each is switched on its own. On stream the widgets are plain HTML drawn by the Chromium that OBS already runs, so nothing new starts.
More on LMU Overlays- Widgets
- Standings, relative, radar, speedo, tyres, fuel, weather and more, each with its own switch
- Renderer
- OBS's own browser source. No second browser
- Overhead
- No web fonts and no live blur. Built to cost the sim nothing
- LMU
- No plugin needed
- rFactor 2
- The plugin installs itself in one click
Standings, race control, relative, speedo and track map are in the stream frame at the top of this page, placed where a broadcast puts them.
Back to the frame02 · Push-to-talk
A voice race engineer on push-to-talk
Bind one wheel button, press it and ask out loud: gap behind, fuel to the end, who's ahead, what the weather is doing. The answer comes back over radio effects in under a second, from your live telemetry.
More on LMU Race Engineer- Offline
- 28 questions answered on your PC, free
- Free-form
- Sent to an AI engineer; your voice is transcribed locally
- Proactive calls
- A dial you set: off, essential or standard
- Gap behind?
- Car behind, one point four. He's lost two tenths this lap.Offline
- Yellow flag, sector two. Yellow, sector two.Proactive
- Fuel to the end?
- Plus one point eight laps. You're good to the flag.Offline
- Should I pit for softs if it dries up?
- Track's drying at sector one. Box in two laps, not now.AI
03 · LMU only
The LMU pit menu, driven from your wheel
The pit menu itself, readable row by row and changeable from a wheel button, a Stream Deck or a hotkey: tyres, fuel, pressures, ducts, wing, brake bias, TC, ABS and motor map.
More on LMU Overlays- Transport
- LMU's own REST API. The in-game MFD never has to be on screen
- Read-back
- Every value is read back from the game, so you see what LMU kept
- Key binding
- Unbound keys found and bound in one click, with a backup and an undo
04 · Ohne Speed's numbers
Your LMU pace, measured against the aliens
Your best lap as a live percentage of alien pace for your exact class and layout, on Ohne Speed's reference times, which are the ones the community trusts.
More on LMU Telemetry- Bands
- Six, from Alien to Offline
- Scope
- Per class and layout. A Good in GT3 at Spa means Good, in GT3, at Spa
- Updates
- Live, as you improve
- League
- Feeds your Pace rank on the league board
Reference times by Ohne Speed
05 · The garage, in a panel
LMU setups: live editor, optimiser and community tunes
Every garage setting in an editor where changes land in the car instantly. Ask for more turn-in or rear stability and the engineer stages balanced, car-specific changes. Nothing is applied until you say so.
More on LMU Setups- Optimiser
- Ten intent sliders; every change staged, reviewable and revertible
- Library
- Your real .svm files, kept where LMU can't overwrite them
- Community
- Setups sorted by proven pace, downloaded straight into the game
Edits here land in the garage instantly. Engineer changes are staged first.
Race engineer
Turn handling intent into balanced, car-specific setup changes.
5 settings staged · 1 fixed by ruleset
06 · Endurance teams
A live LMU pit wall for the whole crew
Timing, track map, live fuel strategy, per-corner tyres and brakes, weather and lap trends on one board. Team relay follows whoever is driving, and marks stale data as stale before anyone acts on it.
More on LMU Pit Wall- Strategy
- Replans from real consumption, with pit windows and the save target to reach them
- Layouts
- Engineer, Strategist and Car, one click apart
- Devices
- Team and Solo boards open in any browser: a phone, a tablet or another PC
Team relay needs each crew member to run Apex AIO on their own active subscription.
| P | # | Driver | Last | Best | Int | vs me | VE |
|---|---|---|---|---|---|---|---|
| 4 | 87 | CARL | 2:14.800 | 2:13.100 | +0.8 | — | 39% |
| 5 | 46 | VER | 2:15.121 | 2:13.420 | +1.1 | +0.3 | 42% |
| 6 | 12 | MUL | 2:15.802 | 2:14.011 | +1.8 | +1.0 | 34% |
| 7 | 92 | JAM | 2:16.214 | 2:14.208 | +2.2 | +1.4 | 51% |
vs me shows the live interval to your team car. Negative is ahead.
● #87 CARL
● #46 VER
● #12 MUL
● #92 JAM
38.5%
≈ 8.8 laps in the tank
2 stops
Pit window · in 6–8 laps
07 · Every lap you drove
LMU telemetry review of every lap you've driven
Apex writes a file for every lap from the day you install it, and Review reads them all back without an account or an upload. A report per session shows your optimal lap and the time left on the table.
More on LMU Telemetry- Traces
- Speed, pedals, gear and steering against distance, with a second lap underneath
- Per 500 m
- A chip saying what that stretch of road cost
- Consistency
- A spread in seconds, not a percentage score
- V-max
- 155 mph
- Samples
- 1020
- Circuit
- 916 pts, bundled
- Elevation
- 30 m rise
Seen from directly above, to scale. Cyan is the line you drove, violet the lap you are comparing with; the road is shaded by its elevation, pale for the high ground. Click any part of it to zoom in, and Big map for a closer look.
08 · 32 bundled
3D LMU track maps with every car on them
The circuit as a raised 2.5-D ribbon lit by a single light, with a dot for every car in its class colour. Thirty-two LMU and WEC circuits ship in the box. Anywhere else is built from your first lap and cached.
More on LMU Overlays- Bundled
- 32 LMU and WEC circuits
- Elsewhere
- Built from your first lap, so it works at circuits that don't exist yet
- Positions
- True world coordinates. A car running wide is drawn running wide
- Size
- About 40 KB a circuit, drawn once and blitted each frame
The track map is bottom right in the stream frame at the top of this page.
Back to the frame09 · The sim's own numbers
LMU track limits and pit-stop countdowns
Track limits in the stewards' own points: allowance left, what each cut was charged, and penalties named as they land. When the car stops in its box, a live countdown to release, built from the sim's own repair estimate.
More on LMU Overlays- Headline
- Counts down, because that's the number you act on
- Penalties
- DRIVE THROUGH, STOP-GO 10S and PENALTY SERVED
- Pit timer
- Repair and tyre time side by side, never guessed into one figure
Shown side by side — never summed
10 · Stream + league
A Twitch & YouTube StreamBot and league leaderboards
A bot that types in your Twitch and YouTube chat, and a league board built from every clean lap you drive. Practice and qualifying count, logged locally with the app's own clean-lap rule.
- Commands
- Up to 50, plus timed messages, editable alerts and on-screen goals
- YouTube quota
- Tracked in a ledger, so a long stream can't run dry without warning
- League board
- Every member's best clean lap, filtered by track, class and car
- kerb_hopper: !gap
- Apex Bot: P4 in Hypercar, +1.2 s to the car ahead.
- late_apex_liz: !setup
- Apex Bot: Tonight's Spa setup is on the league board. Clean lap 2:18.4.
- Apex Bot: Goal: 42 / 50 members. Thanks for joining, slipstream_sam!
| P1 | M. Varga | 2:18.412 |
| P2 | You | 2:18.906 |
| P3 | T. Okafor | 2:19.140 |
| P4 | J. Lind | 2:19.577 |
Every LMU overlay in the box
Each widget has its own switch, two destinations (an OBS Browser Source and the in-game layer) and its own background opacity. All of them are in the one price.
Standings
The full field with gaps, pit status, driver-rating badges and a last-5-lap pace column.
Relative / timing
Nearest cars on track with live delta, each tagged with its class in that class's colour.
Delta
Live gap to your own best lap, updating as you drive it.
Pace delta
Time and speed delta against session, all-time or last lap.
Reference pace
Your lap as a percentage of alien pace, on Ohne Speed's reference times.
Track map
The circuit as a lit 2.5-D ribbon with every car on it. 32 circuits bundled.
Proximity radar
A spotter's-eye strip drawn to true scale, plus the pit-release light.
Race control
Start lights, flags, sector yellows and pit confirmations — without the stock HUD.
Track limits
Points left, what each cut cost, and penalties named — drive-through, stop-go, DQ.
Speedo cluster
Speed, gear, revs, hybrid battery and aid chips — the panel lights up as revs rise.
Tyre temps
Four-corner temperatures with five view modes, from core temp to a full tyre map.
Pedal inputs
Throttle, brake and clutch trace that makes trail-braking style visible.
Pedals (vertical)
The same channels a quarter-turn round, with steering as a swept needle.
Motion
G-force, rotation and attitude in three independently switchable modes.
Damage & repair
Component damage, repair seconds, and the live stop countdown.
MFD control
The in-game pit menu and driving aids — readable and fully controllable.
Fuel calculator
Per-lap use, laps remaining, fuel-to-finish and your pit window.
Fuel planner
Pre-race fuel and energy plan, live stint timer, fuel-ratio control.
Weather
Current conditions plus the short forecast that decides your tyre call.
Stream chat
YouTube and Twitch chat merged into one scrolling column, Super Chats included.
Six numbers you can check in the trial
- Engineer questions answered offline
- 28
- Extra renderers on stream
- 0
- Per telemetry frame, on loopback
- 1–2KB
- Circuits bundled
- 32
- Offline grace on a subscription
- 72h
- Signed: installer, updates and voice engine
- 3/3
Where data is missing
The MFD, race control, track-limit, damage and setup features depend on data rFactor 2 doesn't publish, so on rF2 they read “no data” rather than showing a plausible zero. Track-limit charges can arrive up to ~25 seconds late because of how LMU flushes its log, though the total is correct. Repair and tyre times are shown side by side rather than added together, because whether they overlap hasn't been verified against a real stop.
From the drivers who tested it
LMU drivers from the Apex & Chill community, posted in our Discord. 5.0/5 from 5 reviews.
The pit wall for engineering your teammate is phenomenal. No other app has anything close. So useful to have the correct info, not the BS LMU gives you.
“Absolutely great work from you guys. Brilliant software. Should be proud.”
Jammskie · Apex & Chill member “Super proud of this product. Great work — glad to be a part of the test team. Can't wait for everyone else to get to use this.”
Obsidian · Moderator & test team “Absolutely every LMU Apex & Chill member really should try this app. You will not be disappointed.”
Timmy P · Moderator “I second this — it's an absolute game changer.”
Obsidian · Moderator & test team
One plan, everything in it
The overlays, the race engineer, setups, the pit wall, telemetry review and StreamBot, with every update. There is no second tier.
The only plan
7days free
then £4.99 a month
- Every widget, in OBS and in game
- The voice race engineer, bundled
- Setup optimiser, team pit wall, leaderboards and StreamBot
- Review of every session and every lap you have driven
- Team and Solo engineer boards in a browser, on any device
- Every update, on the day it ships
- Cancel any time, including during the trial
Windows · v1.1.1 · nothing charged until day 8
Billing · Stripe only
- Card entry
- On Stripe's own hosted checkout. The app never sees your card
- First charge
- Only if you're still subscribed when the 7 days end
- Cancelling
- In the app: the subscription card opens Stripe's customer portal for cancelling, cards and invoices
- Offline
- 72 hours of grace on a confirmed subscription, so a weekend without internet isn't a lockout
- League codes
- League racers and beta testers redeem a code on the subscribe screen instead
Install to on screen · 4 steps, no config files
- 01Install and sign inOne signed Windows installer. Start the trial and the server starts itself.
- 02Tick the overlays you wantEach widget has its own switch for OBS and for in-game.
- 03Paste a URL into OBSOr skip OBS and drag widgets over the sim on the in-game layer.
- 04Stay currentUpdates announce themselves and never install mid-stream.
Frequently asked
Do I need to install a plugin or edit game files?
No. Le Mans Ultimate works out of the box over LMU's own REST API. The optional shared-memory plugin adds pedal inputs and tyre detail for the car you're driving, and is required for plain rFactor 2. If you want it, the app installs it into the game for you, in the right place, with one click.
What's included in the free trial?
Everything. The 7-day trial is the full system: every widget, the race engineer, setup optimiser, team pit wall, StreamBot, leaderboards and both overlay destinations. You add a card at signup through Stripe's hosted checkout (the app never sees it), but nothing is charged until the trial ends. Cancel from the in-app subscription card before then and you pay nothing.
Will Windows SmartScreen warn me about the installer?
No. Every build is code-signed through Azure Trusted Signing under The Lilybank Agency Ltd, so there's no SmartScreen "unknown publisher" prompt on install or update. The bundled voice engine is signed the same way, so antivirus tools have nothing to quarantine.
Can I cancel any time?
Yes, from the subscription card in the app. It opens Stripe's own customer portal, where you can cancel, change card or download invoices. The subscription is month to month and stops when you cancel.
Does Apex AIO work with rFactor 2?
Yes, but LMU gets more. The standings, relative, radar, track map, speedo, motion, pedals and fuel widgets work on both. The MFD, race control, track limits, damage and setup features are LMU-only, because rFactor 2 doesn't publish the data they need. Where that data is missing, the widget says so instead of showing a plausible-looking zero.
Does Apex AIO work offline?
Yes, for up to 72 hours. A confirmed subscription has a 72-hour offline grace window, so the app keeps working for three full days with no connection, which covers a LAN event or a weekend away. The engineer's 28 core questions and every overlay work offline. Only free-form AI questions and leaderboard sync need the network.
Will an update interrupt me mid-race or mid-stream?
No. The app checks for new versions on launch and shows a banner, but never installs on its own. You choose when to download and when to restart, so an update can't land in the middle of a race or a broadcast.
Partnered communities
Teams and communities we race, stream and build alongside. None of them are affiliates or resellers.
Obsidian Endurance Racing
Endurance racing team
Forged in darkness. Built to endure.
Yamas Gaming
Gaming community
Reference times
The reference lap times and the Alien → Offline pace bands behind the Reference Pace widget are Ohne Speed's work, with lap times contributed by beAlien, Go and Hymo. The Apex AIO System only reads them, and credits them in the app wherever a score is shown.
Try it free for 7 days
Every LMU overlay, the engineer on the radio, your setups, your telemetry and your stream, in one app. Install it before your next session.
- Platform
- Windows
- Trial
- 7 days
- Then
- £4.99/mo
Everything included. One plan.