Support

Yes. 3D Pacer places sound ahead of you, beside you, or behind you, and that only works when each ear gets its own audio. Your phone’s speaker can’t do that.

Any stereo Bluetooth earbuds or headphones work. AirPods and noise-canceling headphones give the clearest sense of direction. If you run near traffic, turn on transparency or ambient mode so you can still hear what’s around you.

3D Pacer counts your steps with your iPhone’s motion sensors and multiplies your step rate by your step length to get your speed, then compares it to your target. When you fall behind, the sound moves ahead of you. When you’re too fast, it drops behind you. When you’re on pace, it runs right beside you.

Outdoors, GPS keeps learning your step length so your speed stays accurate. On a treadmill, do the one-time treadmill calibration in the app. Keep your phone on your body, in a pocket or armband.

Allow location and motion access when asked. You can change this later in Settings > Privacy & Security > Location Services > 3D Pacer.

Planned runs are part of 3D Pacer Pro. Choose Planned run, set the distance, then a warm-up, your main pace, and a cool-down. Once you start, 3D Pacer moves you through each stage on its own, so you can keep your phone in your pocket and just listen.

Ghost Mode lets you race a run a friend has shared with you, free. Their ghost runs at their exact pace, and you’ll hear whether you’re ahead of them or behind. When you’re done, share your run back and see if they can beat it.

With 3D Pacer Pro, you can also race your own past runs or a goal time.

Yes. Ask Siri to start, pause, resume, cool down, or finish a run, for example “Pause 3D Pacer.” Your phone can stay in your pocket or armband. You can also press play/pause on most earbuds to pause and resume.

Open the Health app, tap your profile picture, then tap Apps and choose 3D Pacer. Make sure writing workouts is turned on. New runs will appear in Health after you finish them.

If you bought Pro and it isn’t showing on a new or reset iPhone, open the Pro screen in 3D Pacer and tap Restore Purchases. Make sure you’re signed in with the same Apple Account you used to buy it.

Purchases and refunds are handled by Apple. To request a refund, visit reportaproblem.apple.com.

Your runs stay on your iPhone. 3D Pacer has no account and doesn’t send your data to us. Runs are saved to Apple Health only if you allow it, and shared only when you choose to share them. See our privacy policy for details.