# ER Weather vs Purese

The clearest difference is update cadence: ER Weather at weekly against Purese's every 6 months. Purese's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ER Weather ships an update weekly, Purese every 6 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | ER Weather | Purese |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 months |
| Monetization | Free | — |
| Size | 5 MB | 16 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JEAN-MARIE BOIS](https://appshunter.io/developer/1785409206) | [Pablo Pantoja](https://appshunter.io/developer/1809880113) |

## What reviewers say

### ER Weather

[App page](https://appshunter.io/ios/app/er-weather/id6739453877)

This weather app prioritizes privacy and uses a unique forecast system to predict severe weather events like tornadoes and thunderstorms. It aims for high accuracy while minimizing resource usage.

**Highlights:** Privacy-focused design, Custom severe weather prediction, Tornado and thunderstorm alerts, Lightning and hail detection, Wind and snow squall forecasts, Resource-efficient operation

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

**In-app purchases:** none


### Purese

[App page](https://appshunter.io/ios/app/purese/id6744907444)

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

**In-app purchases:** none


## Frequently asked questions

### Is ER Weather free?

ER Weather is free to download, with no in-app purchases.

### Is Purese free?

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

### Do ER Weather or Purese have ads?

Neither ER Weather nor Purese shows ads.

### Which is updated more often, ER Weather or Purese?

ER Weather ships an update weekly, and Purese every 6 months. Most recently, ER Weather was updated on November 4, 2026 and Purese on November 5, 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.*