New: make T-Minus Zero yours with colors, gradients, and Spectrum, from soft to neon. Plus jellyfish flags on launch cards, widgets, and your Live Countdown.
Launch day, from your point of view.
Track upcoming SpaceX, NASA, and Blue Origin launches in one launch schedule. Find the next rocket launch, check local times, and follow changes to the missions you care about—with no ads.
FREE TO EXPLORE
Browse the launch schedule, search past and upcoming missions, use filters, and open official webcast links without an account. Find missions such as Starship and Artemis, focus on Kennedy Space Center, Cape Canaveral, or Vandenberg.
See local launch times, countdowns, published windows, mission details, rockets, providers, and launch pads. Check available launch weather and viewing summaries. Launch cards flag when a launch's timing can light up a twilight jellyfish plume, as likely or possible. Your View provides location-based viewing context for U.S. App Store users when data is available. On iPhone, enable free T-10 reminders for eligible countdown-ready launches when notifications are enabled.
BUILT TO KEEP UP WITH LAUNCH DAY
Launch plans change. T-Minus Zero checks eligible missions more frequently near liftoff to keep up with new times and status updates.
MAKE LAUNCH DAY YOURS WITH PREMIUM
Premium brings your launch day into focus:
• Your AR launch guide: AR Pad points toward the launch area for eligible missions.
• Deeper viewing insight: explore more weather and viewing interpretation when available.
• Alerts your way: follow missions, providers, rockets, pads, or launch sites. Customize reminders, supported timing and status alerts, and quiet hours.
• Countdown at a glance: keep eligible countdowns close with Live Activities and Dynamic Island, and add Home Screen and Lock Screen widgets on supported iPhones.
• Make it yours: color the app with a solid color, a gradient, Spectrum, or your own hue, from Soft to Neon. Widgets and the Live Countdown follow; launch status colors never change.
• More ways to plan: review launch changes since your last visit, and use calendar and feed tools.
ON IPHONE DUO
Keep the countdown on the cover display, then open iPhone Duo to spread Today and launch details across the inner display.
ON APPLE WATCH
Check your selected launch, follow its countdown, see available viewing outlook, and add launch complications to your watch face. Setup requires a paired iPhone. Viewing outlooks are available for U.S. App Store users. Some features require Premium.
Launch schedules, weather, viewing guidance, and notifications are planning aids and can change. Viewing tools and alerts vary by mission, device, and settings. Notifications are delivered on a best-effort basis.
T-Minus Zero is independent and is not affiliated with or endorsed by launch providers, agencies, or data sources.
Premium subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period. Available plans, offers, and prices are shown before purchase and may vary by region. Manage or cancel subscriptions in App Store settings.
Lifetime Premium, where offered, is a separate one-time purchase and does not renew. It does not cancel an existing subscription.
Privacy Policy: https://www.tminuszero.app/legal/privacy
Terms of Service: https://www.tminuszero.app/legal/terms
License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Support: https://www.tminuszero.app/support
This is far better than any other app of this kind I have seen. Well worth the subscription even if you’re not in a launch area with live video and a lot of other data
Developer Response
Thank you for the thoughtful review. We built T-Minus Zero to make launch timing, viewing context, and official coverage useful whether you're near a launch site or following from anywhere. We're glad it's earning a place in your launch routine.
Out of this world!
Capt. Justin
Very intuitive and easy to use. It shows the location of the launch right up front which is very helpful.
Developer Response
Thank you Captain! When it comes to seeing these in-person launches, location is a must!
See every launch from your spot without sharing your location, make it yours with colors, and catch the jellyfish launches.
• Your View, your privacy (Premium, U.S.): no need to share your location. Set a viewing spot with any address, city, or ZIP code, and see what you can see of every launch from there. What you type stays on your iPhone, and we keep only the 11 km area around your spot.
• Colors: choose a solid color, a gradient, Spectrum, or your own hue, at Soft, Standard, or Neon. Your widgets, Live Countdown, and controls follow, and launch status colors never change. Ion Mint and Graphite are free; other colors come with Premium.
• Jellyfish flags: launch cards mark launches whose timing can light up a twilight "jellyfish" plume, as likely or possible. Premium widgets and the Live Countdown on the Lock Screen and Dynamic Island show it too.
• Premium alerts: turn on Jellyfish launches in Alerts for a heads-up the evening before a launch you follow that's flagged for a jellyfish, and Visible from your place tells you when a launch should be visible from a place you save.
• iPhone Duo: keep the countdown on the cover display, then open up for Today and launch details across the inner display. Half open, launch details split at the fold.
• Mission brief: launch details open with a short brief and the key numbers.
• Following and Alerts, simplified: Following holds everything you follow, and Alerts shows what this iPhone will receive and when. The daily digest has been retired.
• Live Countdown: close it right from the Lock Screen, and the expanded Dynamic Island fits better on iOS 27.
• Fixes for restoring Premium, booster history, and Premium setup.
Version 1.0.9
The developer, T-MINUS ZERO LLC, 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:
Purchases
Location
Contact Info
User Content
Identifiers
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
The developer indicated that this app supports the following accessibility features. Learn More
Supported Features
VoiceOver
Voice Control
Larger Text
Dark Interface
Differentiate Without Color Alone
Reduced Motion
Information
Seller
T-MINUS ZERO LLC
Size
49.5 MB
Category
Reference
Compatibility
Requires iOS 16.0 or later.
iPhone Requires iOS 16.0 or later.
iPad Requires iPadOS 16.0 or later.
Mac Requires macOS 13.0 or later and a Mac with Apple M1 chip or later.