Dead man's switch app
Personal Security Device
Only for iPhone
$22.99 · In‑App Purchases
iPhone
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Deadmanswitch™ lets you create an encrypted "package" on your device that is then uploaded and stored securely in the cloud*. A package consists of a recipient email address, a message, attachments, and a passphrase hint.
Delivery of your package occurs when there is no detection of user presence. Your recipient is contacted by email and given a unique link and your passphrase hint. They can download your package through an ordinary web browser.
Detection is determined by Steps, Email, or SMS†. As long as you’re moving, you’re considered "present". If no movement is detected, we’ll Email or SMS you to confirm‡. If you are absent, your package(s) will be delivered.
User Manual: https://deadmanswitch.com/ca/en/user-manual
Don't Trust, Verify: https://github.com/deadmanswitch
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* User content is protected with end-to-end encryption; however, certain operational metadata is necessary for storage, retrieval, and decryption.
† Detection by SMS available only in North America. Standard message and data rates may apply.
‡ Functionality requires internet connectivity and access to third-party networks/services. Availability is dependent on local network conditions and government policies; in some jurisdictions connectivity may be degraded, restricted, or blocked. You are solely responsible for obtaining data connectivity and complying with all applicable laws.
We identified edge cases in which the app could be logged out automatically. When this occurs, step-based detection does not function correctly. In these situations, if email or SMS detection is enabled, the user is sent a confirmation message to verify they are present. However, if the app is logged out, step detection cannot resume on its own.
In this release, we’ve improved detection reliability by introducing a URL deep link that works for both email and SMS detection. If the app is logged out and step detection fails, the confirmation message contains a link that opens the app directly. Opening the app refreshes the background task, allowing step detection to resume and continue operating correctly.
The developer, Deadmanswitch.com Inc, 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
- Deadmanswitch.com, Inc.
- Size
- 38.9 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Deadmanswitch $9.99
- Deadmanswitch $22.99
- Copyright
- © 2026 Deadmanswitch.com, Inc.