# adhDO vs Countdown 321

adhDO and Countdown 321 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. adhDO sells 3 in-app purchases, starting at $1.99 per month 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.

adhDO ships an update every 5 weeks, Countdown 321 every 2 months. The most recent releases landed on October 1, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | adhDO | Countdown 321 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (8 ratings)](https://appshunter.io/ios/app/countdown-321-widget/id6749746114/reviews)** |
| Number of ratings | — | **8** |
| Positive reviews | — | 95.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 2 months |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 6 MB |
| Requires iOS | **17.5** | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Alexey Demidov](https://appshunter.io/developer/1070504790) | [帆 邱](https://appshunter.io/developer/1766624521) |

## What reviewers say

### adhDO

[App page](https://appshunter.io/ios/app/adhdo-focus-for-messy-minds/id6532610193)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.99 | per month |
| Annual Subscription | $9.99 | per year |
| Lifetime Purchase | $29.99 | 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 adhDO free?

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

### Is Countdown 321 free?

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

### Do adhDO or Countdown 321 have ads?

Neither adhDO nor Countdown 321 shows ads.

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

adhDO ships an update every 5 weeks, and Countdown 321 every 2 months. Most recently, adhDO was updated on October 1, 2026 and Countdown 321 on October 16, 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.*