# Forecast Clock vs Cosmic Clock

The clearest difference is ads: Cosmic Clock at none against Forecast Clock's shown. Cosmic Clock also leads on update cadence (every 4 weeks vs every 104 months) and iOS requirement (12.0 vs 14.0). On price, 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.

Forecast Clock ships an update every 104 months, Cosmic Clock every 4 weeks. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Forecast Clock | Cosmic Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 104 months | **Every 4 weeks** |
| Size | 8 MB | 38 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ramalingam Sivaramakrishnan](https://appshunter.io/developer/892706271) | [Timothy Bowers](https://appshunter.io/developer/928884270) |

## What reviewers say

### Forecast Clock

[App page](https://appshunter.io/ios/app/forecast-clock-live/id1130755557)

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

**In-app purchases:** none


### Cosmic Clock

[App page](https://appshunter.io/ios/app/cosmic-clock/id1527726275)

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

**In-app purchases:** none


## Frequently asked questions

### Is Forecast Clock free?

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

### Is Cosmic Clock free?

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

### Do Forecast Clock or Cosmic Clock have ads?

Forecast Clock shows ads; Cosmic Clock does not.

### Which is updated more often, Forecast Clock or Cosmic Clock?

Forecast Clock ships an update every 104 months, and Cosmic Clock every 4 weeks. Most recently, Forecast Clock was updated on October 13, 2026 and Cosmic Clock on October 16, 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.*