# Shift Calendar vs OffshorePro

The clearest difference is iOS requirement: Shift Calendar at 16.4 against OffshorePro's 26.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Shift Calendar sells 2 in-app purchases, starting at $2.99 per month and OffshorePro sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Shift Calendar ships an update every 3 weeks, OffshorePro every 2 weeks. Both last shipped on October 26, 2026.

## The numbers

| Metric | Shift Calendar | OffshorePro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 45 MB | 22 MB |
| Requires iOS | **16.4** | 26.5 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [anil sancar](https://appshunter.io/developer/1896591475) | [OffshorePro](https://appshunter.io/developer/6807188143) |

## What reviewers say

### Shift Calendar

[App page](https://appshunter.io/ios/app/shift-calendar-shift-cycle/id6797974018)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Pro | $14.99 | one-time |


### OffshorePro

[App page](https://appshunter.io/ios/app/offshorepro/id6807188141)

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Mensal | $1.99 | per month |
| Premium+ Mensal | $3.99 | per month |
| Premium Anual | $22.99 | per year |
| Premium+ Anual | $39.99 | per year |


## Frequently asked questions

### Is Shift Calendar free?

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

### Is OffshorePro free?

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

### Do Shift Calendar or OffshorePro have ads?

Neither Shift Calendar nor OffshorePro shows ads.

### Which is updated more often, Shift Calendar or OffshorePro?

Shift Calendar ships an update every 3 weeks, and OffshorePro every 2 weeks. Most recently, Shift Calendar was updated on October 26, 2026 and OffshorePro on October 26, 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.*