# Vesper Sky vs OpenWeer

The clearest difference is in-app purchases: OpenWeer at none against Vesper Sky's 3. OpenWeer also leads on update cadence (every 5 days vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Vesper Sky sells 3 in-app purchases, starting at $2.99 per month. OpenWeer asks for nothing beyond the download.

Vesper Sky ships an update monthly, OpenWeer every 5 days. The most recent releases landed on October 2, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Vesper Sky | OpenWeer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Size | 126 MB | 11 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | **iPhone, iPad, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [iSimplifyMe LLC](https://appshunter.io/developer/1887111241) | [Brthrs Agency](https://appshunter.io/developer/1145815974) |

## What reviewers say

### Vesper Sky

[App page](https://appshunter.io/ios/app/vesper-sky/id6762069223)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Vesper | $2.99 | per month |
| Vesper Annual | $24.99 | per year |
| Vesper Lifetime | $59.99 | one-time |


### OpenWeer

[App page](https://appshunter.io/ios/app/openweer/id6769989014)

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

**In-app purchases:** none


## Frequently asked questions

### Is Vesper Sky free?

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

### Is OpenWeer free?

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

### Do Vesper Sky or OpenWeer have ads?

Neither Vesper Sky nor OpenWeer shows ads.

### Which is updated more often, Vesper Sky or OpenWeer?

Vesper Sky ships an update monthly, and OpenWeer every 5 days. Most recently, Vesper Sky was updated on October 2, 2026 and OpenWeer on October 12, 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.*