# WillOS vs Countdown 321

The clearest difference is price: Countdown 321 at Free against WillOS's $3.99. WillOS's advantage is update cadence (every 2 weeks vs every 2 months) and iOS requirement (15.0 vs 18.0). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Countdown 321 is free to download; WillOS costs $3.99 up front. WillOS sells 5 one-off in-app purchases and Countdown 321 sells 3 in-app purchases, starting at $1.99 per year. Whichever you choose, the download price is not the number that matters.

WillOS ships an update every 2 weeks, Countdown 321 every 2 months. The most recent releases landed on October 9, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | WillOS | Countdown 321 |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | — | **[4.6 (8 ratings)](https://appshunter.io/ios/app/countdown-321-widget/id6749746114/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | **100.0% of reviews** | 95.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 6 MB | 6 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [艺景 张](https://appshunter.io/developer/1818288159) | [帆 邱](https://appshunter.io/developer/1766624521) |

## What reviewers say

### WillOS

[App page](https://appshunter.io/ios/app/willos/id6748278061)

This productivity tool helps users organize their time and prioritize tasks. It offers features to stay aware of time, focus on high-value activities, and manage tasks across multiple devices.

**Highlights:** Time awareness, Task prioritization, Cross-device task management, Organized time management

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Wishing Well (人・ω・。) | $0.99 | one-time |
| Fuel me (//ω//) | $2.99 | one-time |
| Feed me (//ω//) | $4.99 | one-time |
| PRO | $6.99 | one-time |
| Feed me (//ω//) | $6.99 | one-time |


### Countdown 321

[App page](https://appshunter.io/ios/app/countdown-321-widget/id6749746114)

Easily track important upcoming events and past milestones with a clean, minimalist interface. Get instant updates via home screen widgets and sync your data across devices with iCloud. Never forget a special day again.

**Highlights:** Countdown and count-up days, Reminders and notifications, Life calendar visualization, Timeline view, Minimalist design, Home screen widgets, iCloud sync

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CountdownPro | $1.99 | per year |
| Lifetime Pro | $1.99 | one-time |
| Lifetime Pro | $2.99 | one-time |


## Frequently asked questions

### Is WillOS free?

WillOS costs $3.99, and also offers in-app purchases.

### Is Countdown 321 free?

Countdown 321 is free to download, with in-app purchases available.

### Do WillOS or Countdown 321 have ads?

Neither WillOS nor Countdown 321 shows ads.

### Which is updated more often, WillOS or Countdown 321?

WillOS ships an update every 2 weeks, and Countdown 321 every 2 months. Most recently, WillOS was updated on October 9, 2026 and Countdown 321 on October 12, 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.*