# AlertKit vs CloudySky2

The clearest difference is update cadence: CloudySky2 at every 4 days against AlertKit's fortnightly. AlertKit's advantage is iOS requirement (15.0 vs 26.2). 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.

AlertKit ships an update fortnightly, CloudySky2 every 4 days. The most recent releases landed on November 8, 2026 and November 13, 2026 respectively.

## The numbers

| Metric | AlertKit | CloudySky2 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/cloudysky2/id6758897251/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 4 days** |
| Monetization | — | Free |
| Size | 15 MB | 83 MB |
| Requires iOS | **15.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [11 APPS](https://appshunter.io/developer/1695296256) | [Wonder Valley Software](https://appshunter.io/developer/443064529) |

## What reviewers say

### AlertKit

[App page](https://appshunter.io/ios/app/alertkit-live-notifications/id6477531920)

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

**In-app purchases:** none


### CloudySky2

[App page](https://appshunter.io/ios/app/cloudysky2/id6758897251)

Identify and learn about different cloud types with this pocket field guide. Explore detailed information, view stunning photos, and log your own cloud observations. Enhance your appreciation of the sky around you.

**Highlights:** Cloud identification guide, Detailed cloud characteristics, Photo index of cloud types, Cloud formation explanations, Weather map symbols chart, Cloud observation logging, Annotate photos with notes

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

**In-app purchases:** none


## Frequently asked questions

### Is AlertKit free?

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

### Is CloudySky2 free?

CloudySky2 is free to download, with no in-app purchases.

### Do AlertKit or CloudySky2 have ads?

Neither AlertKit nor CloudySky2 shows ads.

### Which is updated more often, AlertKit or CloudySky2?

AlertKit ships an update fortnightly, and CloudySky2 every 4 days. Most recently, AlertKit was updated on November 8, 2026 and CloudySky2 on November 13, 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.*