# Leap Year Test vs Calendar Week Nerd

The clearest difference is in-app purchases: Leap Year Test at none against Calendar Week Nerd's 3. Leap Year Test also leads on iOS requirement (11.0 vs 18.4). Calendar Week Nerd's advantage is update cadence (every 2 weeks vs every 13 months). On price, ads and device support there is nothing between them.

Both are free to download. Calendar Week Nerd sells 3 in-app purchases, starting at $1.99 per month. Leap Year Test asks for nothing beyond the download.

Leap Year Test ships an update every 13 months, Calendar Week Nerd every 2 weeks. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Leap Year Test | Calendar Week Nerd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calendar-week-nerd/id6744461822/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 11 MB | 161 MB |
| Requires iOS | **11.0** | 18.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Jan-Hendrik von Kuick](https://appshunter.io/developer/1190145903) | [Balthasar Siekiera](https://appshunter.io/developer/1805185275) |

## What reviewers say

### Leap Year Test

[App page](https://appshunter.io/ios/app/leap-year-test/id1371327368)

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

**In-app purchases:** none


### Calendar Week Nerd

[App page](https://appshunter.io/ios/app/calendar-week-nerd/id6744461822)

This app offers customizable widgets for your home and lock screens, allowing you to track week progress and navigate your calendar. It supports Apple Watch complications and various custom week setups, including ISO and fiscal years.

**Highlights:** Home and lock screen widgets, Custom week start day, ISO and fiscal year week numbering, Apple Watch app and complications, Direct calendar navigation, Yearly progress arcs

**Features:** macOS Compatibility, Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CalendarWeekNerd+ Monthly | $1.99 | per month |
| CalendarWeekNerd Plus Yearly | $9.99 | per year |
| CalendarWeekNerd+ Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is Leap Year Test free?

Leap Year Test is free to download, with no in-app purchases.

### Is Calendar Week Nerd free?

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

### Do Leap Year Test or Calendar Week Nerd have ads?

Neither Leap Year Test nor Calendar Week Nerd shows ads.

### Which is updated more often, Leap Year Test or Calendar Week Nerd?

Leap Year Test ships an update every 13 months, and Calendar Week Nerd every 2 weeks. Most recently, Leap Year Test was updated on October 29, 2026 and Calendar Week Nerd on October 24, 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.*