# HappyFriday vs Calendar Week Nerd

The clearest difference is in-app purchases: HappyFriday at none against Calendar Week Nerd's 3. Calendar Week Nerd's advantage is update cadence (every 2 weeks vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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

HappyFriday ships an update every 4 months, Calendar Week Nerd every 2 weeks. The most recent releases landed on November 11, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | HappyFriday | 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 4 months | **Every 2 weeks** |
| Monetization | — | Freemium |
| Size | 3 MB | 161 MB |
| Requires iOS | **17.6** | 18.4 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [练仑 李](https://appshunter.io/developer/1358070871) | [Balthasar Siekiera](https://appshunter.io/developer/1805185275) |

## What reviewers say

### HappyFriday

[App page](https://appshunter.io/ios/app/happyfridayjoyful-countdown/id1487358861)

**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 HappyFriday free?

HappyFriday 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 HappyFriday or Calendar Week Nerd have ads?

Neither HappyFriday nor Calendar Week Nerd shows ads.

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

HappyFriday ships an update every 4 months, and Calendar Week Nerd every 2 weeks. Most recently, HappyFriday was updated on November 11, 2026 and Calendar Week Nerd on November 5, 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.*