# Cadillock vs Calendar Week Nerd

The clearest difference is in-app purchases: Cadillock at none against Calendar Week Nerd's 3. Cadillock also leads on iOS requirement (8.0 vs 18.4). Calendar Week Nerd's advantage is update cadence (every 2 weeks vs every 12 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. Cadillock asks for nothing beyond the download.

Cadillock ships an update every 12 months, Calendar Week Nerd every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Cadillock | 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 12 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 8 MB | 161 MB |
| Requires iOS | **8.0** | 18.4 |
| Devices | iPhone, iPod | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [TBS Group Corporation](https://appshunter.io/developer/1440250784) | [Balthasar Siekiera](https://appshunter.io/developer/1805185275) |

## What reviewers say

### Cadillock

[App page](https://appshunter.io/ios/app/cadillock/id1310295438)

**Features:** macOS Compatibility

**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 Cadillock free?

Cadillock 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 Cadillock or Calendar Week Nerd have ads?

Neither Cadillock nor Calendar Week Nerd shows ads.

### Which is updated more often, Cadillock or Calendar Week Nerd?

Cadillock ships an update every 12 months, and Calendar Week Nerd every 2 weeks. Most recently, Cadillock was updated on October 24, 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.*