Speed Comp
Music that keeps up with the sled
Helmet speakers at 15 mph on the trail and at 60 across the lake are two different problems. Speed Comp reads your GPS speed and raises the volume as you open up, then brings it back for the tight stuff — with the phone zipped inside your jacket the whole time.
Helmet speakers, earbuds under the balaclava, or a handlebar speaker. Trail sleds, mountain sleds, utility sleds.
Mittens, not fingertips
Nobody takes a glove off at ten below to find a volume button.
Set it once, in the truck
Pick the range before you unload. From there the volume follows your speed and the phone never comes out.
Lake runs and trail crawls
The level that works wide open across the lake is deafening in a slow, twisty section. It follows your speed either way, and comes back to baseline when you stop.
The phone stays in the jacket
Screen off, in an inside pocket, still running. The Lock Screen card on iPhone or the notification on Android shows it is on, with a stop button.
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 a sled, try starting at about 10 mph and topping out around 50–60 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 snow
Helmet speakers, earbuds or a bar speaker
Whatever your phone plays to over Bluetooth, Speed Comp moves the level the phone sends it. Nothing to configure on the headset.
A profile for the mountain sled, one for the trail sled
Different terrain, different top speeds, different curves. Plus keeps three saved profiles; Pro keeps as many as you like.
Test it in the driveway
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 trail.
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 snow
Does the cold affect it?
Cold shortens phone battery life in general, and the app asks no more of the battery than a navigation app does. An inside pocket keeps the phone warm, and the app keeps running with the screen off.
Does it work with my helmet's speakers?
With any Bluetooth headset, helmet speakers or earbuds your phone plays music to. Speed Comp moves the phone's media volume — the level the phone sends to the headset. A headset with its own volume control applies that on top.
Does GPS work in the trees and mountains?
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 zipped away?
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.
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, before you unload
Free on iPhone and Android. Pick a range in the truck and keep your mittens on.
