# Rocket Watch — Jellyfish Effect Launch Alerts

> Rocket launch tracker with unique jellyfish plume prediction and live countdowns. (iPhone/iPad app by Joshua Justice.)

- Source: https://appshunter.io/ios/app/rocket-watch/id6794750968 (this page in markdown: same URL + `.md`)
- Developer: [Joshua Justice](https://appshunter.io/developer/6793700583)
- Category: Education, Entertainment
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings
- Age rating: 4+
- Requires: iOS 17.0 · 8 MB
- Languages: American English
- Released: 2026-08-25
- Data updated: 2026-10-13
- Monetization: free with in-app purchases

## What is Rocket Watch?

Rocket Watch tracks upcoming rocket launches — with live countdowns, real weather conditions, and a feature you won't find anywhere else: jellyfish-plume potential.

WHAT'S A JELLYFISH PLUME?
During dawn and dusk launches, a rocket's exhaust can climb high enough to catch direct sunlight while the ground below is still dark — creating a luminous, jellyfish-shaped glow across the sky. 321 Jelly calculates whether each upcoming launch falls in that window, so you know when to look up for something special.

FEATURES
• Live countdowns for every upcoming launch, inside 72 hours
• Jellyfish-plume potential for each launch, based on real sunrise/sunset/twilight data
• Current sky conditions (clear, cloudy, or rain) for each launch's own time
• A home screen widget showing the next launch at a glance
• Local notifications at T-10 minutes, T-60 seconds and liftoff — plus a T+4 minute alert on jellyfish launches. With your permission, your approximate location (which stays on your device) limits alerts to launches close enough to actually see
• Rocket photos and live broadcast links when available
• Share any launch with one tap
• No account required, no ads, no data collection

Rocket Watch is free to use. If it helps you catch a launch, an optional paid version unlocks Live Activities, Notifications, and Widgets. Your support helps keep the app supported with new features. 

Jellyfish-plume potential is a modeled estimate based on public twilight data, not an official forecast.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

## Key features

- Live rocket launch countdowns
- Jellyfish plume potential prediction
- Real-time weather conditions
- Home screen widget
- Local launch notifications
- Rocket photos and broadcast links

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Rocket Watch Crew (Individual) | $49.99 | one-time |
| Rocket Watch Crew (Family) | $99.99 | one-time |


## Is Rocket Watch safe?

Not enough ratings yet to assess Rocket Watch.

## Is Rocket Watch legit?

Rocket Watch appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Rocket Watch is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Frequently asked questions about Rocket Watch

### What is the jellyfish plume feature in Rocket Watch?

The jellyfish plume feature in Rocket Watch calculates the potential for a luminous, jellyfish-shaped glow in the sky caused by a rocket's exhaust catching sunlight during dawn or dusk launches. This is based on public twilight data.

### Does Rocket Watch have ads?

No, Rocket Watch is ad-free. The developer states there are no ads, and no account is required or data collected.

### How does Rocket Watch notify users about launches?

Rocket Watch provides local notifications at 72 hours, 1 hour, and 10 minutes before liftoff. The 10-minute alert includes real-time sky conditions for the launch.

### What devices is Rocket Watch compatible with?

Rocket Watch is available on Mac, iPhone, and iPad, making it accessible across multiple Apple platforms.

### How often is Rocket Watch updated?

The app was last updated on September 5, 2026, to version 2.0. This indicates active development and support for new features.

### What is the pricing for Rocket Watch?

Rocket Watch is free to use. An optional paid version is available to unlock Live Activities, Notifications, and Widgets, supporting the app's development.

### Can I track launches offline with Rocket Watch?

The provided description does not specify offline functionality. However, features like live countdowns and real-time weather typically require an internet connection.

### What is the age rating for Rocket Watch?

Rocket Watch has an age rating of 4+, making it suitable for a wide range of users interested in space exploration.

## Version history (last 5 releases)

### 2.1.8 — 2026-10-10

• Widgets now count down live to the second, like 8d 11h 35m 23s, right on your home screen or desktop.
• Widgets show the sonic boom call (Single Boom, Double Boom or No Boom) beside the rocket.
• New alert: Prepare for Incoming Sonic Boom arrives about 30 seconds before a returning booster's boom. Turn it off anytime in Settings under Sonic Boom Alerts.
• Fixes and polish.

### 2.1.7 — 2026-10-03

• Home screen widgets now show the liftoff time. The medium widget also shows sunrise and sunset, so you can see at a glance whether a launch falls in the dawn or dusk glow window.
• Fixes and polish.

### 2.1.6 — 2026-10-02

• New: 24-hour and 1-hour heads-up alerts, so you can plan ahead instead of just catching the last-minute notice.
• Booster landing zone and sonic boom info (single vs. double) added to launch cards and alerts, curated for upcoming missions.
• New Scrub Alert and Delay Alert notifications — get told right away if a launch slips or gets called off.
• Rocket Watch Crew is now Rocket Watch Pro.
• Smarter, shorter alerts that fit fully in the notification preview.

### 2.1.5 — 2026-09-24

• Swipe between Pacific Coast, Starbase and Space Coast. The far-right page shows all three live countdowns with their confirmed liftoff times.
• Watch launch streams and the Cape pad camera right inside the app. Video plays from YouTube only when you tap.
• More reliable launch data when the schedule service is busy.
• Share any launch with one tap — sends the details plus a link to Rocket Watch.
• Smarter alerts: with your approximate location (optional, and it stays on your device), Rocket Watch alerts you only about launches close enough to actually see. Prefer the old behavior? Turn off "Only Launches Near Me" in Settings.
• Alerts now fire at T-10 minutes, T-60 seconds and liftoff — plus a T+4 minute alert on jellyfish launches, right when the plume catches the sun.
• Revoking location access now clears the stored position immediately.

### 2.1.3 — 2026-09-20

Cleaned up long mission names in the widgets so they fit on one line.

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## More apps by Joshua Justice

- [Dive Archive](https://appshunter.io/ios/app/dive-archive/id6804485826)
- [Timeshare Travel](https://appshunter.io/ios/app/timeshare-travel/id6805737329)

All apps by Joshua Justice: https://appshunter.io/developer/6793700583

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-13.*