# CW 1 to 53 vs MR.pro® App

The clearest difference is update cadence: MR.pro® App at every 9 days against CW 1 to 53's every 4 months. CW 1 to 53's advantage is device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

CW 1 to 53 ships an update every 4 months, MR.pro® App every 9 days. The most recent releases landed on November 7, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | CW 1 to 53 | MR.pro® App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (13 ratings)](https://appshunter.io/ios/app/cw-1-to-53/id1496439228/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 38.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 9 days** |
| Monetization | Paid | — |
| Size | 2 MB | 28 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stefan Robl](https://appshunter.io/developer/1016181321) | [Rhomberg Sersa Vossloh GmbH](https://appshunter.io/developer/1752876318) |

## What reviewers say

### CW 1 to 53

[App page](https://appshunter.io/ios/app/cw-1-to-53/id1496439228)

Easily track calendar weeks on your Apple Watch and iOS devices. View current and future weeks, customize complications, and choose your preferred week numbering scheme. A standalone Apple Watch app for convenience.

**Highlights:** Apple Watch complications, List all calendar weeks, Customizable complications, ISO8601 and US week numbering, Standalone Apple Watch app, iOS/iPadOS list view, Copy/paste week information

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


### MR.pro® App

[App page](https://appshunter.io/ios/app/mrpro-app/id6667100253)

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

**In-app purchases:** none


## Frequently asked questions

### Is CW 1 to 53 free?

CW 1 to 53 is free to download, with no in-app purchases.

### Is MR.pro® App free?

MR.pro® App is free to download, with no in-app purchases.

### Do CW 1 to 53 or MR.pro® App have ads?

Neither CW 1 to 53 nor MR.pro® App shows ads.

### Which is updated more often, CW 1 to 53 or MR.pro® App?

CW 1 to 53 ships an update every 4 months, and MR.pro® App every 9 days. Most recently, CW 1 to 53 was updated on November 7, 2026 and MR.pro® App on November 8, 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.*