# Date601 vs Calendar Week Nerd

The clearest difference is price: Calendar Week Nerd at Free against Date601's $0.99. Calendar Week Nerd also leads on rating (5.0 vs 1.0) and update cadence (every 2 weeks vs every 2 months). Date601's advantage is in-app purchases (none vs 3). On ratings volume, ads, device support and iOS requirement there is nothing between them.

Calendar Week Nerd is free to download; Date601 costs $0.99 up front. Calendar Week Nerd sells 3 in-app purchases, starting at $1.99 per month. Date601 asks for nothing beyond the download.

Calendar Week Nerd holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

Date601 ships an update every 2 months, Calendar Week Nerd every 2 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Date601 | Calendar Week Nerd |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/date601/id6743832119/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/calendar-week-nerd/id6744461822/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Paid | **Freemium** |
| Size | 3 MB | 161 MB |
| Requires iOS | **17.0** | 18.4 |
| Devices | iPhone, Apple Watch | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Prathamesh Kowarkar](https://appshunter.io/developer/1513820046) | [Balthasar Siekiera](https://appshunter.io/developer/1805185275) |

## What reviewers say

### Date601

[App page](https://appshunter.io/ios/app/date601/id6743832119)

This utility displays the current date in ISO 8601 format on your wearable device. Users can choose to include the day of the week for additional context. It offers a straightforward way to access date information directly from your wrist.

**Highlights:** ISO 8601 date display, Optional day of the week, Watch compatibility, iPhone companion app

**Features:** Apple Watch app

**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 Date601 free?

Date601 costs $0.99, with no in-app purchases.

### Is Calendar Week Nerd free?

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

### Which has better reviews, Date601 or Calendar Week Nerd?

Calendar Week Nerd is rated higher. Date601 averages 1.0 out of 5 from 1 ratings, while Calendar Week Nerd averages 5.0 from 1 ratings.

### Do Date601 or Calendar Week Nerd have ads?

Neither Date601 nor Calendar Week Nerd shows ads.

### Which is updated more often, Date601 or Calendar Week Nerd?

Date601 ships an update every 2 months, and Calendar Week Nerd every 2 weeks. Most recently, Date601 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.*