# Solar Sphere

> Real-time Kp-index and solar images from NOAA Space Weather Prediction Center. (iPhone/iPad app by Pulsely Consulting Limited.)

- Source: https://appshunter.io/ios/app/solar-sphere/id990396823 (this page in markdown: same URL + `.md`)
- Developer: [Pulsely Consulting Limited](https://appshunter.io/developer/475349326)
- Category: Productivity, Utilities
- Price: Free
- Rating: 4.00/5 from 6 App Store ratings · 9 written reviews indexed
- Age rating: 17+
- Requires: iOS 9.0 · 3 MB
- Languages: American English
- Released: 2015-05-27
- Data updated: 2026-06-01
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/solar-sphere/id990396823/reviews.md

## What is Solar Sphere?

The Solar Sphere provides current value of Kp-index derived from the NOAA Space Weather Prediction Center using data from multiple ground-based magnetometers. 

Also, current solar images are available in 4 different high resolution formats.

The Kp-index quantifies solar disturbances in the horizontal component of earth's magnetic field with an integer in the range 0-9 with 1 being calm and 5 or more indicating a geomagnetic storm.

For drone flyers, please only fly on solar KP Index less than 5.

## Key features

- Real-time Kp-index monitoring
- High-resolution solar images
- Kp-index explanation
- Geomagnetic storm indication
- Drone flying safety guidance

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/solar-sphere/id990396823/reviews.md

### 5/5 — My favorite sun app

*2025-10-05, version 1.2*

wonderful app to check out what the sun is up to and gives a very decent KP reading

### 3/5 — There are bugs to fix

*2020-08-29, version 1.2*

Lasco C3 doesnt seem to work
When you touch other items in the menu, it doesn’t change

### 3/5 — More descriptive

*2019-01-06, version 1.2*

I’m not an expert in the field but I’m interested in the information that the App can give. I would like to have in a more descriptive and simple way (maybe graphic) when is LOW and when is HIGH activity. Or what’s the difference between the views or screens you are presenting.

### 3/5 — Time for an update

*2018-01-24, version 1.2*

GOES went offline December 7 2017. Need to retask for this. Now I can't see my sun spots except on the visible. LASCO is still my favorite tho.

### 5/5 — Very nice

*2017-05-17, version 1.2*

The app works nicely. I would like if you could pause and play the videos as well as scrub through them.

### 1/5 — Watch

*2017-04-24, version 1.2*

Kp numbers and sun views don't display on my watch. It's a shame I wanted to know the KP number just by looking at my watch.

### 5/5 — It works!

*2016-12-23, version 1.2*

Wow, it's amazing what people will whine about.

This is a great time rendered view of the sun under different light spectrums as well as a sun shadowed view of its space emissions. It shows the aurora over the North Pole. What else is there really?

Great reference for low banders working DX

### 5/5 — Outstanding Application

*2016-09-07, version 1.1*

The ONLY aurora application to show the forecast in motion, no other app does that, none. Use it daily to see the possibility of the Northern Lights in Alaska, kudos

### 1/5 — Frivolous Implementation

*2016-01-09, version 1.1*

It doesn't seem to me as if the creator(s) were very serious about this. "Use My Location" brings me the Aurora Australis, not the Aurora Borealis. There appears to be no way to check the status of the Aurora Borealis.

I have very little hope of seeing the Aurora Australis if I go outside. I live in Virginia.

There's more, but you get the idea.

## Frequently asked questions about Solar Sphere

### What is the Kp-index in Solar Sphere?

The Kp-index quantifies solar disturbances in Earth's magnetic field, ranging from 0 (calm) to 9. Solar Sphere provides the current Kp-index value derived from NOAA data.

### Does Solar Sphere offer solar images?

Yes, Solar Sphere provides current solar images in four different high-resolution formats, allowing users to visualize solar activity.

### Is Solar Sphere suitable for drone pilots?

Yes, Solar Sphere includes guidance for drone flyers, recommending they only fly when the solar Kp-index is less than 5 to ensure safety.

### What devices does Solar Sphere support?

Solar Sphere is available on Apple devices including watch, iPhone, iPad, and iPod.

### How often is Solar Sphere updated?

The latest version of Solar Sphere is 1.2, which was released on December 9, 2016. The app was initially released on May 27, 2015.

### What is the age rating for Solar Sphere?

Solar Sphere has an age rating of 17+, indicating it may contain content not suitable for younger users.

### Does Solar Sphere have ads?

No, Solar Sphere does not contain advertisements.

### What is the user rating for Solar Sphere?

Solar Sphere has a rating of 4.0 stars based on 6 user ratings.

## Version history (last 3 releases)

### 1.2 — 2016-12-09

This app has been updated by Apple to display the Apple Watch app icon.

Updated for iOS 10 and watchOS 3. Apple Watch users should upgrade to watchOS.

### 1.1 — 2015-06-08

Improved Apple Watch extension performance

### 1.0.2 — 2015-05-20

No release notes.

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All apps by Pulsely Consulting Limited: https://appshunter.io/developer/475349326

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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 2026-06-01.*