# Epicenter vs UV Index Now Tracker

The clearest difference is in-app purchases: UV Index Now Tracker at none against Epicenter's 2. Epicenter's advantage is update cadence (every 4 days vs every 2 weeks) and iOS requirement (17.4 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Epicenter sells 2 in-app purchases, starting at $1.99 per month. UV Index Now Tracker asks for nothing beyond the download.

Epicenter ships an update every 4 days, UV Index Now Tracker every 2 weeks. The most recent releases landed on September 23, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | Epicenter | UV Index Now Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (39 ratings)](https://appshunter.io/ios/app/epicenter-earthquake-map/id972755325/reviews)** | — |
| Number of ratings | **39** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Paid | — |
| Size | 102 MB | 16 MB |
| Requires iOS | **17.4** | 26.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jess Taylor](https://appshunter.io/developer/417821730) | [Farouk Elsayed](https://appshunter.io/developer/1260632583) |

## What reviewers say

### Epicenter

[App page](https://appshunter.io/ios/app/epicenter-earthquake-map/id972755325)

Explore global earthquake activity from the past 30 days on an interactive globe. View detailed information, animate seismic events over time, and customize map displays. Includes companion apps for Apple Watch and a Today Widget for quick access to recent data.

**Highlights:** 30 days of global earthquake data, Interactive rotatable and zoomable globe, Earthquake details (magnitude, depth, source), Date scroller and animation, Customizable map terrain and fault lines, Apple Watch app for recent data, Today Widget for quick access

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Epicenter+ Monthly | $1.99 | per month |
| Epicenter+ Annual | $9.99 | per year |


### UV Index Now Tracker

[App page](https://appshunter.io/ios/app/uv-index-now-tracker/id6786035888)

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

**In-app purchases:** none


## Frequently asked questions

### Is Epicenter free?

Epicenter is free to download, with in-app purchases available.

### Is UV Index Now Tracker free?

UV Index Now Tracker is free to download, with no in-app purchases.

### Do Epicenter or UV Index Now Tracker have ads?

Neither Epicenter nor UV Index Now Tracker shows ads.

### Which is updated more often, Epicenter or UV Index Now Tracker?

Epicenter ships an update every 4 days, and UV Index Now Tracker every 2 weeks. Most recently, Epicenter was updated on September 23, 2026 and UV Index Now Tracker on August 16, 2026.

---

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