Speed Comp
Music that keeps up on the trail
Trail speed changes every few seconds — crawling a climb, opening up on the flat, back to a crawl for the creek. A fixed volume on the sound bar is wrong most of the time. Speed Comp reads GPS speed and moves the volume with it, so it is loud when you are moving and civil when you are not.
Quads, side-by-sides, sound bars on the cage, a speaker in the cupholder, or a headset under the helmet.
Dust, gloves and a rutted two-track
Nobody is tapping a phone screen on the trail. The volume has to look after itself.
Set it at the truck
Pick the range at the trailhead, mount or pocket the phone, and the app handles every change of pace from there.
Civil when the group stops
When everyone pulls up to talk, the volume that cut through at 40 mph is a wall of noise. It settles back to baseline as you roll to a halt.
One curve for the quad, another for the side-by-side
An open quad and a cabbed side-by-side hear wind differently. Save a profile for each.
Three moving parts
Set a speed range, start compensation, and go. Everything after that is automatic.
Pick your range
Choose the speed where compensation should start and the speed where it should top out — in MPH or KPH. Below your minimum, the app leaves your volume alone entirely. On the trail, try starting at about 5 mph so it stays quiet idling around camp, and topping out around 35–45 mph.
Set your baseline
Tap start at a volume that sounds right while stopped. That level becomes the floor. Speed Comp only ever adds to it — it will never turn your music down below where you set it.
Ride
GPS speed drives the volume curve continuously in the background, screen off. A Live Activity on iPhone, or an ongoing notification on Android, shows it running — with a stop button always one tap away.
Set up for the trail
Sound bars and cage speakers
If the sound bar plays from your phone over Bluetooth, Speed Comp moves the level the phone sends it. The bar's own knob applies on top — leave it where you like it.
Tune it at the trailhead
The built-in simulation ramps a fake speed from zero to your maximum through the same path as real GPS, so the curve is right before the first climb.
Two machines, two profiles
Plus keeps three saved profiles; Pro keeps as many as you like. Switch before you set off and nothing needs redialling.
What it looks like
The same app on iPhone and Android: a speed, a volume, and how much the app has added.
Running
Speed, volume and the amount added, with a stop button.
The curve
Two speeds do all the work; between them the volume climbs steadily.
The floor
Your starting volume is the floor. The app only ever adds to it.
Free to use, for as long as you like
Speed compensation is not a trial and does not expire. The only limit without a subscription is that each session runs for up to two hours, then stops — start it again and you get another two. A subscription lifts that limit and adds the extras below.
Free
No account, no ads, no expiry date.
- Full speed-to-volume compensation
- Two hours per session, restart as often as you like
- Speed simulation for tuning while stopped
Plus
Everything in Free, without the session clock.
- No session time limit
- Up to three saved profiles
Pro
Everything in Plus, plus the audio extras.
- Unlimited saved profiles
- Smooth gain between volume steps
- Now-playing display with transport controls (Apple Music on iPhone)
Where your data goes
Speed Comp needs precise location because that is the only way a phone knows how fast you are moving. It does not follow that the app needs to keep it, and it does not.
- Your location never leaves your device. Speed is read, turned into a volume, and discarded; no location history is kept, not even on the phone.
- No ads, no advertising ID, no tracking, no account.
- Anonymous usage analytics only — which screens are opened, whether a session or a purchase went through. The policy lists every event.
Questions from the trail
Does it work with a cage-mounted sound bar?
If your phone is what plays the music, yes. Speed Comp moves the phone's media volume — the level your phone sends over Bluetooth — so any speaker, headset or built-in audio system that is playing from your phone follows along. A device with its own volume knob applies that on top: leave it where you like it and let the phone's level do the moving. What the app cannot reach is a stereo playing its own source, such as FM radio or a USB stick.
Does GPS work under tree cover?
GPS is weaker under dense tree cover and in tight canyons, the same as it is for any navigation app; in the open the fix is quick and steady. Wherever the phone can read a speed, Speed Comp can act on it.
Will it keep running with the phone in a pocket?
Yes. On iPhone the app keeps receiving location in the background and shows a Live Activity on the Lock Screen with a Stop button; on Android it runs as a foreground service with an ongoing notification, also with Stop. Screen off, phone sealed away — it keeps working.
What about slow group rides?
Below your start speed the app leaves the volume at the floor, so a slow crawl in a group stays at whatever level you set when you started. It only climbs once you are past the start speed you chose.
Will it ever turn my music down below where I set it?
No. The volume you have when you start compensation is the floor. Speed Comp only ever adds to it, and comes back to exactly that level when you stop moving.
Set it once, at the trailhead
Free on iPhone and Android. Pick a range at the truck and let the volume follow the trail.
