# World Now vs Asteroid Alerts

The clearest difference is price: Asteroid Alerts at Free against World Now's $3.99. Asteroid Alerts also leads on rating (5.0 vs 2.4) and in-app purchases (none vs 1). World Now's advantage is ratings volume (27 vs 1) and chart position (#135 vs unranked). On ads and device support there is nothing between them.

Asteroid Alerts is free to download; World Now costs $3.99 up front. World Now sells 1 one-off in-app purchase. Asteroid Alerts asks for nothing beyond the download.

Asteroid Alerts holds the better App Store score, 5.0 against 2.4. That said, the two scores are not equally well evidenced: World Now has 27 ratings behind it against 1, so its average is the more settled of the two.

World Now ships an update every 6 months, Asteroid Alerts every 3 weeks. The most recent releases landed on October 26, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | World Now | Asteroid Alerts |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [2.4 (27 ratings)](https://appshunter.io/ios/app/world-now/id610493235/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/asteroid-alerts/id6745825086/reviews)** |
| Number of ratings | **27** | 1 |
| Positive reviews | 7.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Paid | **Free** |
| Best chart rank | **#135** | — |
| Size | 6 MB | 34 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kelly Technology Inc.](https://appshunter.io/developer/393931941) | [Francesca DeMeo](https://appshunter.io/developer/1816256479) |

## What reviewers say

### World Now

[App page](https://appshunter.io/ios/app/world-now/id610493235)

**Currently charting:** #135 Top Paid · Weather (US App Store)

Explore near real-time satellite imagery of Earth for any location. Observe weather patterns and environmental conditions using data from NASA's LANCE instruments. View detailed satellite outputs directly on a world map.

**Highlights:** Near real-time satellite imagery, Global map view, NASA LANCE data integration, Weather and environmental observation, Interactive cursor for location-specific data

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Animate images | $3.99 | one-time |


### Asteroid Alerts

[App page](https://appshunter.io/ios/app/asteroid-alerts/id6745825086)

Track near-Earth asteroids and space threats in real time with instant alerts and detailed data. Explore information on objects passing close to Earth, powered by NASA and the Minor Planet Center.

**Highlights:** Live asteroid tracking, Push notifications for discoveries, Weekly asteroid activity briefings, Detailed object data (size, velocity, hazard), NASA Sentry integration, Asteroid and space news feed, Visual interface with charts

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is World Now free?

World Now costs $3.99, and also offers in-app purchases.

### Is Asteroid Alerts free?

Asteroid Alerts is free to download, with no in-app purchases.

### Which has better reviews, World Now or Asteroid Alerts?

Asteroid Alerts is rated higher. World Now averages 2.4 out of 5 from 27 ratings, while Asteroid Alerts averages 5.0 from 1 ratings.

### Do World Now or Asteroid Alerts have ads?

Neither World Now nor Asteroid Alerts shows ads.

### Which is updated more often, World Now or Asteroid Alerts?

World Now ships an update every 6 months, and Asteroid Alerts every 3 weeks. Most recently, World Now was updated on October 26, 2026 and Asteroid Alerts on October 8, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*