# OnlyWeekNo. vs Weeklet

The clearest difference is in-app purchases: Weeklet at none against OnlyWeekNo.'s 1. Weeklet also leads on ads (none vs shown) and device support (4 vs 2). OnlyWeekNo.'s advantage is update cadence (every 2 months vs every 6 months) and iOS requirement (16.0 vs 26.0). On price there is nothing between them.

Both are free to download. OnlyWeekNo. sells 1 one-off in-app purchase. Weeklet asks for nothing beyond the download.

OnlyWeekNo. ships an update every 2 months, Weeklet every 6 months. The most recent releases landed on September 17, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | OnlyWeekNo. | Weeklet |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 6 months |
| Size | 4 MB | 12 MB |
| Requires iOS | **16.0** | 26.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Takenori Kabeya](https://appshunter.io/developer/289913597) | [Hiroaki Matsuno](https://appshunter.io/developer/1729659390) |

## What reviewers say

### OnlyWeekNo.

[App page](https://appshunter.io/ios/app/onlyweekno/id6448488587)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Disable Advertising | $0.49 | one-time |


### Weeklet

[App page](https://appshunter.io/ios/app/weeklet-week-number/id6745425508)

**Features:** Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is OnlyWeekNo. free?

OnlyWeekNo. is free to download, with in-app purchases available.

### Is Weeklet free?

Weeklet is free to download, with no in-app purchases.

### Do OnlyWeekNo. or Weeklet have ads?

OnlyWeekNo. shows ads; Weeklet does not.

### Which is updated more often, OnlyWeekNo. or Weeklet?

OnlyWeekNo. ships an update every 2 months, and Weeklet every 6 months. Most recently, OnlyWeekNo. was updated on September 17, 2026 and Weeklet on September 26, 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.*