0Day: CVE & Exploit Alerts
DevSecOps & Vulnerability Feed
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Your security feed shouldn't alert you about Rails vulnerabilities when you ship Node. 0Day filters to your stack. CVEs, supply chain attacks, exploits on day zero.
Most security feeds bury you in CVEs that have nothing to do with what you ship. 0Day cuts through that. Zero-days, supply chain attacks, compromised packages, active exploits: filtered to your exact stack, the moment they break.
Pick your stack once during onboarding: npm, PyPI, Docker, Kubernetes, React, Rails, OpenSSL, whatever you use and the feed shows you only what touches your tech. No noise. No irrelevant advisories. Just what matters to you.
The goal is lead time. Know about a compromised package, a poisoned build pipeline, or an actively exploited CVE before it reaches your CI, your production deployment, or your customers. Before the news cycle. Before the stragglers patch. Before you're the one scrambling at 2am.
WHY 0DAY
- Privacy-first — no analytics, no tracking, no third-party SDKs
- Early warnings before the news cycle — the moment a threat breaks, you know
- Stack-aware filtering — see only threats that hit the tools you use
- Multi-source corroboration — duplicates merged, sources ranked by tier
- Curated, not firehose — every alert is tied to a specific component
- Full archive — searchable history of every threat that hit your stack
HOW IT WORKS
Every item in the feed goes through a three-stage lifecycle so you can tell the difference between "we're watching this" and "this is real, act now":
CANDIDATE — A single source has reported an incident. In the pipeline, being correlated, not yet corroborated.
EARLY WARNING — Either an authoritative research outlet flagged it, or a second independent source has confirmed the same incident. Pushed to your device immediately — this is the lead time the product is built for.
CONFIRMED — Two or more authoritative sources agree, or three independent sources total. High-confidence state you can act on without double-checking.
INSIDE THE FEED
Each alert gives you a plain-English summary, affected components with version ranges, recommended action, CVE and GHSA identifiers with tappable links to the upstream advisories, and a timeline of when each source reported the incident.
PRIVACY
We collect only what we need to run the service: your email for sign-in, your stack selections, your notification preferences, and your device token for push delivery. No analytics. No crash reporting SDKs. No advertising identifiers. No cross-app tracking. All data is stored in the European Union on AWS infrastructure. You can delete your account and all associated data instantly from Settings.
SUBSCRIPTION
0Day Pro unlocks the full experience: early warning alerts, push notifications, full archive access, remediation guidance, and stack filtering. All new users get a free 14-day trial — no payment required to get started. After the trial, subscribe to keep full access. Offered as a monthly or annual subscription. Payment is charged to your Apple ID at confirmation of purchase. Subscription auto-renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in iOS Settings → Apple ID → Subscriptions.
Terms of Use: https://0day.lous.nl/terms
Privacy Policy: https://0day.lous.nl/privacy
Free trial fix: New users on a 14-day trial no longer see the paywall incorrectly after sign-up.
Onboarding improvements: Notification setup is clearer, with permission confirmation before you continue
Paywall polish: Cleaner layout with an easier path to continue on the free tier
The developer, Richard Lous, 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 Linked to You
The following data may be collected and linked to your identity:
- Contact Info
- Identifiers
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Richard Lous
- Size
- 8 MB
- Category
- Developer Tools
- Compatibility
Requires iOS 18.0 or later.
- iPhone
Requires iOS 18.0 or later. - Mac
Requires macOS 15.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 0Day Pro $3.99
- 0Day Pro $29.99
- Copyright
- © lous
