# Instant USGS Earthquake Pro vs SolarLunar Data

The clearest difference is price: SolarLunar Data at Free against Instant USGS Earthquake Pro's $1.99. SolarLunar Data also leads on rating (5.0 vs 2.5). Instant USGS Earthquake Pro's advantage is device support (4 vs 1). On ratings volume, ads, in-app purchases and iOS requirement there is nothing between them.

SolarLunar Data is free to download; Instant USGS Earthquake Pro costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

SolarLunar Data holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

## The numbers

| Metric | Instant USGS Earthquake Pro | SolarLunar Data |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [2.5 (2 ratings)](https://appshunter.io/ios/app/instant-usgs-earthquake-pro/id1084793426/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/solarlunar-data/id6475114921/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | — |
| Monetization | Paid | **Free** |
| Size | 11 MB | 3 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | **iPhone, iPad, Mac, Apple TV** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jufen Chang](https://appshunter.io/developer/1075589996) | [Thomas Mead](https://appshunter.io/developer/1723362092) |

## What reviewers say

### Instant USGS Earthquake Pro

[App page](https://appshunter.io/ios/app/instant-usgs-earthquake-pro/id1084793426)

Get real-time earthquake alerts and NOAA radar imagery. Visualize seismic activity and weather patterns on interactive maps, with customizable color-coded severity levels and 3D viewing options.

**Highlights:** Real-time earthquake alerts, Color-coded severity levels, NOAA radar imagery, Interactive global map, 3D viewing options, Apple Watch integration, Apple TV integration

**Features:** Vision Pro support

**In-app purchases:** none


### SolarLunar Data

[App page](https://appshunter.io/ios/app/solarlunar-data/id6475114921)

Visualize sun and moon shadows at any time and location. Save favorite spots, receive sunrise/sunset alerts, and check current sky conditions. Zoom in for detailed analysis of celestial body positions.

**Highlights:** Sun and moon shadow visualization, Time and date manipulation, Favorite locations list, Sunrise/sunset alerts, Moon phase tracking, Map-based location search, Current sky conditions

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Instant USGS Earthquake Pro free?

Instant USGS Earthquake Pro costs $1.99, with no in-app purchases.

### Is SolarLunar Data free?

SolarLunar Data is free to download, with no in-app purchases.

### Which has better reviews, Instant USGS Earthquake Pro or SolarLunar Data?

SolarLunar Data is rated higher. Instant USGS Earthquake Pro averages 2.5 out of 5 from 2 ratings, while SolarLunar Data averages 5.0 from 1 ratings.

### Do Instant USGS Earthquake Pro or SolarLunar Data have ads?

Neither Instant USGS Earthquake Pro nor SolarLunar Data shows ads.

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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.*