# Countdown 321 vs CalculatorX

The clearest difference is rating: Countdown 321 at 4.6 against CalculatorX's 4.0. Countdown 321 also leads on ratings volume (8 vs 2). CalculatorX's advantage is update cadence (every 6 days vs every 3 months) and monetization model (free vs free with in-app purchases). On price, review sentiment, ads and in-app purchases there is nothing between them.

Both are free to download. Countdown 321 sells 2 in-app purchases, starting at $1.99 per year and CalculatorX sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Countdown 321 holds the better App Store score, 4.6 against 4.0. Both are backed by a comparable volume of ratings — 8 and 2 respectively. Written reviews point the same way: 95% of Countdown 321's written reviews are positive against 93% of CalculatorX's.

Countdown 321 ships an update every 3 months, CalculatorX every 6 days. The most recent releases landed on September 25, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Countdown 321 | CalculatorX |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (8 ratings)](https://appshunter.io/ios/app/countdown-321-widget/id6749746114/reviews)** | [4.0 (2 ratings)](https://appshunter.io/ios/app/calculatorx-smartcustomize/id6755351007/reviews) |
| Number of ratings | **8** | 2 |
| Positive reviews | **95.5% of reviews** | 92.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 6 MB | 12 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [帆 邱](https://appshunter.io/developer/1766624521) | [学良 靳](https://appshunter.io/developer/1791452413) |

## What reviewers say

### 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CountdownPro | $1.99 | per year |
| Lifetime Pro | $0.99 | one-time |


### CalculatorX

[App page](https://appshunter.io/ios/app/calculatorx-smartcustomize/id6755351007)

A fast and customizable calculator app that allows users to personalize themes, button styles, and view calculation history in real-time. Offers various display options and sound feedback for an enhanced user experience.

**Highlights:** Real-time calculation history, Customizable button colors and shapes, Multiple themes and light/dark modes, Decimal precision control, Exportable calculation history, Sound effects and voice feedback

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Premium | $2.99 | one-time |


## Frequently asked questions

### Is Countdown 321 free?

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

### Is CalculatorX free?

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

### Which has better reviews, Countdown 321 or CalculatorX?

Countdown 321 is rated higher. Countdown 321 averages 4.6 out of 5 from 8 ratings, while CalculatorX averages 4.0 from 2 ratings.

### Do Countdown 321 or CalculatorX have ads?

Neither Countdown 321 nor CalculatorX shows ads.

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

Countdown 321 ships an update every 3 months, and CalculatorX every 6 days. Most recently, Countdown 321 was updated on September 25, 2026 and CalculatorX on September 20, 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.*