# Time Horizon vs Winter Calendar

The clearest difference is in-app purchases: Winter Calendar at none against Time Horizon's 3. Winter Calendar also leads on update cadence (every 4 days vs monthly). Time Horizon's advantage is iOS requirement (18.2 vs 27.0). On price, ads and device support there is nothing between them.

Both are free to download. Time Horizon sells 3 in-app purchases, starting at $2.99 per month. Winter Calendar asks for nothing beyond the download.

Time Horizon ships an update monthly, Winter Calendar every 4 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | Time Horizon | Winter Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Size | 15 MB | 2 MB |
| Requires iOS | **18.2** | 27.0 |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Sydney Sharpe](https://appshunter.io/developer/6790601764) | [Rogue Superintelligence LLC](https://appshunter.io/developer/6775100694) |

## What reviewers say

### Time Horizon

[App page](https://appshunter.io/ios/app/time-horizon/id6790601762)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Annual | $19.99 | per year |
| Lifetime | $59.99 | one-time |


### Winter Calendar

[App page](https://appshunter.io/ios/app/winter-calendar/id6818054825)

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

**In-app purchases:** none


## Frequently asked questions

### Is Time Horizon free?

Time Horizon is free to download, with in-app purchases available.

### Is Winter Calendar free?

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

### Do Time Horizon or Winter Calendar have ads?

Neither Time Horizon nor Winter Calendar shows ads.

### Which is updated more often, Time Horizon or Winter Calendar?

Time Horizon ships an update monthly, and Winter Calendar every 4 days. Most recently, Time Horizon was updated on October 31, 2026 and Winter Calendar on October 31, 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.*