# Calendar.online vs BoatRefiter

The clearest difference is price: Calendar.online at Free against BoatRefiter's $3.99. Calendar.online also leads on update cadence (every 2 months vs every 10 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

Calendar.online is free to download; BoatRefiter costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Calendar.online ships an update every 2 months, BoatRefiter every 10 months. The most recent releases landed on October 25, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Calendar.online | BoatRefiter |
| --- | --- | --- |
| Price | **Free** | $3.99 |
| Rating | **[4.7 (40 ratings)](https://appshunter.io/ios/app/calendaronline/id1607856409/reviews)** | — |
| Number of ratings | **40** | — |
| Positive reviews | 94.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free | — |
| Size | 67 MB | 2 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Kalender.digital](https://appshunter.io/developer/1584623403) | [Jan Doniec](https://appshunter.io/developer/1797295738) |

## What reviewers say

### Calendar.online

[App page](https://appshunter.io/ios/app/calendaronline/id1607856409)

This free online calendar facilitates team collaboration with shareable access links. Manage permissions, set passwords, and customize views for seamless group scheduling. Access your calendar from any device with a simple bookmark.

**Highlights:** Shareable access links, Role-based permissions (admin, editor, reader), Password protection for links, Customizable access link views, Dashboard for managing calendars, Device bookmarking

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

**In-app purchases:** none


### BoatRefiter

[App page](https://appshunter.io/ios/app/boatrefiter/id6742186814)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calendar.online free?

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

### Is BoatRefiter free?

BoatRefiter costs $3.99, with no in-app purchases.

### Do Calendar.online or BoatRefiter have ads?

Neither Calendar.online nor BoatRefiter shows ads.

### Which is updated more often, Calendar.online or BoatRefiter?

Calendar.online ships an update every 2 months, and BoatRefiter every 10 months. Most recently, Calendar.online was updated on October 25, 2026 and BoatRefiter on October 28, 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.*