# PréviCA vs AllSky PNW

The clearest difference is update cadence: AllSky PNW at every 3 weeks against PréviCA's every 2 months. 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.

PréviCA ships an update every 2 months, AllSky PNW every 3 weeks. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | PréviCA | AllSky PNW |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/allsky-pnw/id6737809598/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 30 MB | 4 MB |
| Requires iOS | **16.0** | 17.5 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple TV |
| Age rating | 4+ | 4+ |
| Developer | [Consultation Massawippi](https://appshunter.io/developer/501209581) | [Jeremy Fields](https://appshunter.io/developer/1775136879) |

## What reviewers say

### PréviCA

[App page](https://appshunter.io/ios/app/previca/id1107409341)

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

**In-app purchases:** none


### AllSky PNW

[App page](https://appshunter.io/ios/app/allsky-pnw/id6737809598)

Experience the Pacific Northwest sky through a unique fisheye lens. This calming app offers dynamic views of the sky, from starry nights to cloudy days, with automatic refreshes and timelapse videos. Discover the ever-changing beauty above.

**Highlights:** Fisheye sky imagery, Automatic minute-by-minute refreshes, Daily 24-hour timelapse videos, Mini 30-minute timelapse clips, Northern Lights and starry night views

**In-app purchases:** none


## Frequently asked questions

### Is PréviCA free?

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

### Is AllSky PNW free?

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

### Do PréviCA or AllSky PNW have ads?

Neither PréviCA nor AllSky PNW shows ads.

### Which is updated more often, PréviCA or AllSky PNW?

PréviCA ships an update every 2 months, and AllSky PNW every 3 weeks. Most recently, PréviCA was updated on November 2, 2026 and AllSky PNW on October 30, 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.*