The Signal
A story you play by walking
Only for iPhone
Free · In‑App Purchases
iPhone
A mystery told through its characters’ voiced calls and texts, played by walking. Free to download, with no account and no ads.
At 3:14 in the morning, Luke's phone rings. It's his sister Sarah, who vanished twenty years ago. She still sounds like a little girl. She needs his help, and she tells him where to go.
The Signal is a mystery you play by walking. Go for a real walk, anywhere you like, and the story plays out on screen as you go: calls and texts from its characters, and a tracker leading you through the dark.
HOW IT WORKS
• Your steps move the story forward. Stop, and it waits for you.
• Walk wherever you like. The map on screen is the game's world, not your street.
• Keep your phone in your pocket. The calls are voiced, so headphones are best.
• The calls and texts are scenes in the story, played inside the app. It doesn't make or receive real calls or messages.
FREE TO PLAY
• Episode 1, "The Call": one walk of about an hour. Choose a shorter or longer walk before you start, and it saves as you go.
• Training: a 20-minute practice walk that shows you how everything works.
• Free Walk: a new map every time, with no story and nothing chasing you.
This version includes one story episode.
CHALLENGE MODES: ONE-TIME PURCHASE
Three replayable modes, each with its own record to beat:
• Chase: close in on a target that keeps moving ahead.
• Escape: stay ahead of pursuers until you reach the destination.
• Checkpoint: reach each marker before its countdown hits zero.
They match your usual walking pace and pause when you stop. Pay once for all three. No subscription.
On iPhone, challenge alerts can arrive late while your phone is in your pocket. They're most reliable with the app open.
PRIVATE BY DESIGN
No account, no ads, no analytics. Everything the game records stays on your phone. Location is optional: allow it and each walk records its distance, speed and elevation.
WORKS WITH APPLE HEALTH
The Signal reads your step count from Apple Health to notice that you've walked while your phone is in your pocket, so messages and alerts can reach you. It never writes to Health, and your health data never leaves your phone.
Made by one person. Look up when you cross the road: the story can wait.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
Season 1 is here: one payment for every episode of Season 1 as it's released, plus Challenge Modes. Or become a Supporter for your name in the credits and Switchyard, a model railway game to play on the handset.
Episode 1's ending now plays out with your phone in your pocket. Spoken calls keep playing with your phone locked, after an interruption and over Bluetooth, and the app opens faster. Tapping a notification opens the latest message. New in Settings: REPORT A FAULT drafts an email with your build and phone. Plus a safety note and many smaller fixes.
The developer, Dafydd Llwyd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Dafydd Llwyd
- Size
- 66.3 MB
- Category
- Health & Fitness
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
English and 9 more
- English, French, German, Italian, Japanese, Korean, Polish, Portuguese, Spanish, Traditional Chinese
- Age Rating
9+
- 9+
- Infrequent
Mature or Suggestive Themes
Horror/Fear Themes
- In-App Purchases
Yes
- Season 1 Supporter $14.99
- Season 1 Pass $4.99
- Challenge Modes $1.99
- Copyright
- © 2026 Rasena