# OnlyNumbers vs Week Number · Calendar Weeks

OnlyNumbers and Week Number · Calendar Weeks are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | OnlyNumbers | Week Number · Calendar Weeks |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 days | — |
| Size | 41 MB | 5 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Mike Parker](https://appshunter.io/developer/1736044115) | [Wenlin Fan](https://appshunter.io/developer/6788697203) |

## What reviewers say

### OnlyNumbers

[App page](https://appshunter.io/ios/app/onlynumbers/id6759034720)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Week Number · Calendar Weeks

[App page](https://appshunter.io/ios/app/week-number-calendar-weeks/id6791656746)

**Features:** Apple Watch app

**In-app purchases:** none


## Frequently asked questions

### Is OnlyNumbers free?

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

### Is Week Number · Calendar Weeks free?

Week Number · Calendar Weeks is free to download, with no in-app purchases.

### Do OnlyNumbers or Week Number · Calendar Weeks have ads?

Neither OnlyNumbers nor Week Number · Calendar Weeks shows ads.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*