CHIRPSTR CHIRPSTR
Coming soon on iOS

Run
Louder.

Family & friends record 30-second audio messages called Chirps. CHIRPSTR plays them through your headphones during your next run or activity.

Get early access See how it works
Run in progress ◗◖
3.05
Miles
Time
28:26
Pace
9:20
Chirps
4
Marathon training• Race day• Half marathon• 5K & 10K• Ultra running• Triathlon• Track workouts• Long runs• Walking•
Mile 26

Same race.
Different run.

Chirpstr Off
A rainy, silent finish line The same finish line, sunlit and lined with cheering supporters
Three hours of silence
Just you, your watch, and the sound of your own breathing.
Mom
“I am so proud of you.”
Coach Mike
“This is your kick. Go.”
Hubby
“400 metres left. Finish it.”
Thirty-one voices in your ears
Everyone who could not be there, right there at mile 26.
How it works

Three steps to
your best run

01

Download the app

Create your profile in about a minute. Free, no card.

CHIRPSTR ready-to-run screen
02

Share your link

Friends and family record from any browser. No app, no account.

Sharing your CHIRPSTR link
03

Run supported

Chirps duck your music and play at your interval or mile marker.

A run in progress
App tour

Take a look around

Free 01 / 05

    30-second chirps

    Long enough to matter, short enough to keep moving.

    Any headphones

    AirPods, Bluetooth, wired. Whatever your phone supports.

    Music keeps playing

    Chirps duck the audio, then hand it straight back.

    Private by default

    Your chirps are yours. Never shared or sold.

    Pricing

    Under a dollar
    a month

    7 days of Pro, free

    Share CHIRPSTR with a friend. When they sign up, every Pro feature unlocks for a week.

    Annual saves 16%
    Free
    $0forever

    Everything you need to get started.

    10 chirp slots
    1 active playlist
    Full training sessions with custom intervals
    Supporters record from any browser
    Chirps stored for 30 days
    Start free
    Most popular
    Pro
    $0.99/ month, cancel anytime

    Everything you need to finish strong.

    Race Mode with GPS mile markers
    Kick Mode from your lock screen
    Unlimited chirps and playlists
    1-year storage, download any chirp
    Cancel anytime
    Go Pro
    FAQ

    Got questions?

    Still stuck? support@chirpstr.app

    No. You share one link and they record straight from a mobile browser. No app, no account, so even grandparents can get in on it.

    Training mode lets you set the interval. Race Mode uses GPS to fire mile-specific chirps. Kick Mode plays one every five seconds when you need to grind through a bad patch.

    CHIRPSTR ducks your audio, plays the message clearly, then hands your music straight back.

    Up to 30 seconds. Long enough to say something meaningful, short enough that you never break stride.

    No. 5K, half, long training run, tough workout, or a walk. If someone wants to cheer you on, CHIRPSTR gets their voice in your ears.

    Chirps are stored securely and only you can hear them. We never share or sell them. Free chirps are kept 30 days, Pro keeps them a year and lets you download them.

    iOS only right now. Android is on the roadmap. Email support@chirpstr.app to be told when it lands.

    Your first chirp is one link away.

    Join the waitlist now, and the moment CHIRPSTR lands on the App Store, you will be the first to know.

    Get early access Free · iOS 16 and later · Android coming
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