# GridBox vs Formula Calendar

The clearest difference is in-app purchases: Formula Calendar at none against GridBox's 2. Formula Calendar also leads on update cadence (monthly vs every 5 months) and iOS requirement (15.1 vs 18.0). On price there is nothing between them.

Both are free to download. GridBox sells 1 one-off in-app purchase. Formula Calendar asks for nothing beyond the download.

GridBox ships an update every 5 months, Formula Calendar monthly. The most recent releases landed on October 25, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | GridBox | Formula Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (69 ratings)](https://appshunter.io/ios/app/gridbox-f1-widgets/id6747036623/reviews)** | — |
| Number of ratings | **69** | — |
| Positive reviews | 45.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 5 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 76 MB | 49 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 17+ |
| Developer | [ONE SML LAB PTE. LTD.](https://appshunter.io/developer/1719232806) | [raphael anciaux](https://appshunter.io/developer/1889263176) |

## What reviewers say

### GridBox

[App page](https://appshunter.io/ios/app/gridbox-f1-widgets/id6747036623)

Enhance your device with stylish countdown widgets for every Formula 1 race. Personalize your home and lock screens with aesthetically pleasing designs that keep you informed about upcoming events.

**Highlights:** F1 race countdown widgets, Home screen personalization, Lock screen customization, Stylish widget designs, Device aesthetic enhancement

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| GridBox Pro - Lifetime | $14.99 | one-time |


### Formula Calendar

[App page](https://appshunter.io/ios/app/formula-calendar/id6761384329)

**In-app purchases:** none


## Frequently asked questions

### Is GridBox free?

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

### Is Formula Calendar free?

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

### Which is updated more often, GridBox or Formula Calendar?

GridBox ships an update every 5 months, and Formula Calendar monthly. Most recently, GridBox was updated on October 25, 2026 and Formula Calendar on October 11, 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.*