# CalendarDuo vs CreatorBoost

The clearest difference is in-app purchases: CalendarDuo at none against CreatorBoost's 3. CalendarDuo also leads on iOS requirement (15.1 vs 17). CreatorBoost's advantage is ads (none vs shown) and update cadence (every 6 weeks vs every 4 months). On price and device support there is nothing between them.

Both are free to download. CreatorBoost sells 3 in-app purchases, starting at $0.99 per 7 days. CalendarDuo asks for nothing beyond the download.

CalendarDuo ships an update every 4 months, CreatorBoost every 6 weeks. The most recent releases landed on June 24, 2026 and August 20, 2026 respectively.

## The numbers

| Metric | CalendarDuo | CreatorBoost |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Ad-supported | — |
| Size | 41 MB | 13 MB |
| Requires iOS | **15.1** | 17 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chun Lam](https://appshunter.io/developer/1565498900) | [Son Phi](https://appshunter.io/developer/1337183344) |

## What reviewers say

### CalendarDuo

[App page](https://appshunter.io/ios/app/calendarduo/id1589593639)

Easily manage and view holidays from two different countries simultaneously. This utility app offers instant switching between calendars, a dual-view display, and helpful tools like a world clock and currency exchange.

**Highlights:** Switch between two world calendars instantly, Duo-view with holidays from two countries, Daylight Saving Time dates, Currency exchange rate, World clock, Add notes

**Features:** macOS Compatibility

**In-app purchases:** none


### CreatorBoost

[App page](https://appshunter.io/ios/app/creatorboost-content-studio/id6749160753)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CreatorBoost Pro | $0.99 | per 7 days |
| CreatorBoost Pro | $1.99 | per month |
| CreatorBoost Pro | $8.99 | per year |


## Frequently asked questions

### Is CalendarDuo free?

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

### Is CreatorBoost free?

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

### Do CalendarDuo or CreatorBoost have ads?

CalendarDuo shows ads; CreatorBoost does not.

### Which is updated more often, CalendarDuo or CreatorBoost?

CalendarDuo ships an update every 4 months, and CreatorBoost every 6 weeks. Most recently, CalendarDuo was updated on June 24, 2026 and CreatorBoost on August 20, 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.*