# Smooth Countdown vs ClockMate

The clearest difference is price: ClockMate at Free against Smooth Countdown's $0.99. ClockMate also leads on update cadence (every 2 months vs every 21 months). Smooth Countdown's advantage is in-app purchases (none vs 1) and iOS requirement (15.6 vs 17.0). On ads and device support there is nothing between them.

ClockMate is free to download; Smooth Countdown costs $0.99 up front. ClockMate sells 1 one-off in-app purchase. Smooth Countdown asks for nothing beyond the download.

Smooth Countdown ships an update every 21 months, ClockMate every 2 months. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Smooth Countdown | ClockMate |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 2 months** |
| Size | 1 MB | 8 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Tobias Huppertz](https://appshunter.io/developer/1548106214) |

## What reviewers say

### Smooth Countdown

[App page](https://appshunter.io/ios/app/smooth-countdown/id485337187)

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

**In-app purchases:** none


### ClockMate

[App page](https://appshunter.io/ios/app/clockmate-chess-clock/id6761675613)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClockMate Pro | $0.99 | one-time |


## Frequently asked questions

### Is Smooth Countdown free?

Smooth Countdown costs $0.99, with no in-app purchases.

### Is ClockMate free?

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

### Do Smooth Countdown or ClockMate have ads?

Neither Smooth Countdown nor ClockMate shows ads.

### Which is updated more often, Smooth Countdown or ClockMate?

Smooth Countdown ships an update every 21 months, and ClockMate every 2 months. Most recently, Smooth Countdown was updated on September 17, 2026 and ClockMate on September 21, 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.*