# uCan vs Days

The clearest difference is in-app purchases: Days at none against uCan's 1. uCan's advantage is ads (none vs shown) and update cadence (every 5 weeks vs every 47 months). On price and device support there is nothing between them.

Both are free to download. uCan sells 1 in-app purchase, starting at $19.99 per year. Days asks for nothing beyond the download.

uCan ships an update every 5 weeks, Days every 47 months. Both last shipped on October 27, 2026.

## The numbers

| Metric | uCan | Days |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 5 weeks** | Every 47 months |
| Size | 74 MB | 70 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Oeni](https://appshunter.io/developer/1631737028) | [Thua Nguyen](https://appshunter.io/developer/1466012074) |

## What reviewers say

### uCan

[App page](https://appshunter.io/ios/app/ucan/id1631737026)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Yearly | $19.99 | per year |


### Days

[App page](https://appshunter.io/ios/app/days-events-countdown/id6444895869)

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

**In-app purchases:** none


## Frequently asked questions

### Is uCan free?

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

### Is Days free?

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

### Do uCan or Days have ads?

Days shows ads; uCan does not.

### Which is updated more often, uCan or Days?

uCan ships an update every 5 weeks, and Days every 47 months. Most recently, uCan was updated on October 27, 2026 and Days on October 27, 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.*