Signal Ark: SETI Explorer

Explore Cosmic Radio Signals

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Signal Ark puts cosmic radio signal exploration in your hands. WHAT IS SIGNAL ARK? Signal Ark is a SETI-inspired educational app for exploring radio astronomy concepts, signal packages, waterfall spectrograms, anomaly scores, drift rates, RFI probability, SNR values, and the scientific method behind cosmic listening. SIGNAL VAULT Browse curated signal packages inspired by radio astronomy workflows. Each package includes information such as target name, frequency band, observation date, source context, and a waterfall-style visualization. SETI ACADEMY Learn the foundations of cosmic signal analysis through structured lessons. Discover how radio telescopes work, why humans search the cosmos, what makes a candidate signal interesting, how interference is identified, and why every anomaly requires validation. COSMIC JOURNAL Save signals that catch your attention, write notes, and build your own exploration archive. SOUND LIBRARY Explore radio signal sonifications and learn how scientific data can be represented through sound. SCIENTIFIC INTEGRITY Signal Ark never labels a signal as extraterrestrial. Interesting does not mean alien. Every candidate requires independent verification and scientific validation. PREMIUM ACCESS Some content and features require an optional auto-renewable Monthly Access subscription. Payment is charged through your Apple Account. The subscription renews automatically unless canceled through your Apple Account subscription settings. PRIVACY FIRST No advertising or behavioral tracking. Signal Ark uses anonymous app identifiers and does not require your name, location, or personal profile. Privacy Policy: https://signal-ark.space/privacy.html Terms of Use (EULA): https://signal-ark.space/terms.html

  • 5.0
    out of 5
    1 Ratings

Notes for App Review — Version 1.1 (Build 1) This update refines the onboarding flow and the Premium (subscription) screen. Summary of changes: Onboarding copy simplified — the welcome screen and the "In Signal Ark" explanation screen now show shorter, less repetitive text. No functional changes to these screens. Onboarding flow shortened — users now go directly from the "In Signal Ark" screen to the Premium subscription screen, instead of passing through an intermediate "Wow! Signal" case-study screen first. This case-study content has not been removed — it is now accessible from a link ("The Wow! Signal — read the case study") on the Premium screen itself, opened as an in-app sheet with its own close button. Premium screen layout — the subscription screen now shows only: app description, the monthly subscription offer with price, a link to the Wow Signal case study, Restore Purchases, and the required Terms of Use (EULA) / Privacy Policy links. All legal links remain visible and tappable without needing to subscribe first. App Store screenshots updated — the first 3 screenshots (both iPhone and iPad sets) were updated to match the current onboarding flow (Landing, In Signal Ark, Premium). Since the Wow! Signal case study is no longer a standalone onboarding screen, it is not shown as a separate screenshot — it's reachable from within the Premium screenshot via the case-study link. No changes were made to the subscription product, pricing, entitlement logic, or purchase/restore flow (StoreKit / Apple In-App Purchase only — no external checkout). The paywall remains dismissible via the Close / Back buttons at any time before purchase.

The developer, Jean Marc Moro, 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 Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
  • Jean Marc Moro
Size
  • 45.9 MB
Category
  • Education
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
Languages
  • English
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 Jean-Marc Moro