# Calndars vs COPROG Calendar

The clearest difference is price: COPROG Calendar at Free against Calndars's $3.99. COPROG Calendar also leads on update cadence (fortnightly vs every 5 weeks) and iOS requirement (15.0 vs 26.0). On ads, in-app purchases and device support there is nothing between them.

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

Calndars ships an update every 5 weeks, COPROG Calendar fortnightly. The most recent releases landed on October 6, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Calndars | COPROG Calendar |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calndars/id1481775085/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Fortnightly** |
| Monetization | Paid | — |
| Size | 6 MB | 63 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Geert Jadoul](https://appshunter.io/developer/458883064) | [COPROG e.K.](https://appshunter.io/developer/1356957127) |

## What reviewers say

### Calndars

[App page](https://appshunter.io/ios/app/calndars/id1481775085)

Effortlessly convert dates between over 30 major calendar systems, including Gregorian, Islamic, and Chinese. This utility is designed for global professionals and researchers needing precise cross-cultural date translations. Integrates with widgets and Shortcuts for seamless workflow.

**Highlights:** Convert dates across 30+ calendar systems, Supports Gregorian, Islamic, Chinese, Hebrew, Persian, and more, Native experience on iPhone, iPad, Mac, Apple Watch, Customizable widgets, Shortcuts integration, AppleScript support on macOS

**In-app purchases:** none


### COPROG Calendar

[App page](https://appshunter.io/ios/app/coprog-calendar/id6670216681)

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

**In-app purchases:** none


## Frequently asked questions

### Is Calndars free?

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

### Is COPROG Calendar free?

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

### Do Calndars or COPROG Calendar have ads?

Neither Calndars nor COPROG Calendar shows ads.

### Which is updated more often, Calndars or COPROG Calendar?

Calndars ships an update every 5 weeks, and COPROG Calendar fortnightly. Most recently, Calndars was updated on October 6, 2026 and COPROG Calendar on October 15, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*