# Formula App Widget vs Formula Calendar

The clearest difference is in-app purchases: Formula Calendar at none against Formula App Widget's 1. Formula Calendar also leads on iOS requirement (15.1 vs 17.0). Formula App Widget's advantage is update cadence (every 2 days vs monthly). On price there is nothing between them.

Both are free to download. Formula App Widget sells 1 in-app purchase, starting at $1.99 per year. Formula Calendar asks for nothing beyond the download.

Formula App Widget ships an update every 2 days, Formula Calendar monthly. The most recent releases landed on September 30, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | Formula App Widget | Formula Calendar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | **Every 2 days** | Monthly |
| Size | 58 MB | 49 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 17+ |
| Developer | [Jose Mikhail](https://appshunter.io/developer/1354454904) | [raphael anciaux](https://appshunter.io/developer/1889263176) |

## What reviewers say

### Formula App Widget

[App page](https://appshunter.io/ios/app/formula-app-widget/id6761116956)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Annual | $1.99 | per year |


### Formula Calendar

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

**In-app purchases:** none


## Frequently asked questions

### Is Formula App Widget free?

Formula App Widget 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, Formula App Widget or Formula Calendar?

Formula App Widget ships an update every 2 days, and Formula Calendar monthly. Most recently, Formula App Widget was updated on September 30, 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.*