# The Week Number vs HolyDates

The clearest difference is device support: HolyDates at 5 against The Week Number's 3. HolyDates also leads on iOS requirement (12.4 vs 15.6). On price, update cadence, ads and in-app purchases there is nothing between them.

The Week Number costs $0.99 and HolyDates $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

The Week Number ships an update every 18 months, HolyDates every 34 months. The most recent releases landed on June 29, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | The Week Number | HolyDates |
| --- | --- | --- |
| Price | $0.99 | $0.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/the-week-number/id315311121/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 18 months** | Every 34 months |
| Monetization | Paid | — |
| Size | 1 MB | 2 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac, Apple TV** |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Tom Stankey](https://appshunter.io/developer/441863432) |

## What reviewers say

### The Week Number

[App page](https://appshunter.io/ios/app/the-week-number/id315311121)

Quickly determine the week number for any past or future date. Offers both US and ISO week numbering methods. The app icon updates to display the current week number upon launch.

**Highlights:** Calculate week number for any date, Supports US week numbering (Sunday start), Supports ISO week numbering (Monday start), Icon badge displays current week number, Past and future date calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### HolyDates

[App page](https://appshunter.io/ios/app/holydates/id1525426911)

**In-app purchases:** none


## Frequently asked questions

### Is The Week Number free?

The Week Number costs $0.99, with no in-app purchases.

### Is HolyDates free?

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

### Do The Week Number or HolyDates have ads?

Neither The Week Number nor HolyDates shows ads.

### Which is updated more often, The Week Number or HolyDates?

The Week Number ships an update every 18 months, and HolyDates every 34 months. Most recently, The Week Number was updated on June 29, 2026 and HolyDates on September 18, 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.*