# PROS Clock vs Liquid Clock

The clearest difference is in-app purchases: PROS Clock at none against Liquid Clock's 3. PROS Clock also leads on iOS requirement (13.0 vs 26.2). Liquid Clock's advantage is update cadence (fortnightly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. Liquid Clock sells 3 in-app purchases, starting at $0.99 per month. PROS Clock asks for nothing beyond the download.

PROS Clock ships an update monthly, Liquid Clock fortnightly. The most recent releases landed on September 23, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | PROS Clock | Liquid Clock |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | — |
| Size | 30 MB | 11 MB |
| Requires iOS | **13.0** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen PROS Electronics Co.,Ltd](https://appshunter.io/developer/1798637623) | [东东 张](https://appshunter.io/developer/1637022692) |

## What reviewers say

### PROS Clock

[App page](https://appshunter.io/ios/app/pros-clock/id6742538787)

This app enhances a smart calendar clock, offering specialized support for elderly individuals, including those with dementia, Alzheimer's, or memory loss. It aims to provide better care and usability for users of the smart calendar clock.

**Highlights:** Smart calendar clock integration, Elderly care support, Dementia and Alzheimer's assistance, Memory loss aid, Improved user experience for seniors

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

**In-app purchases:** none


### Liquid Clock

[App page](https://appshunter.io/ios/app/liquid-clock-no-ads/id6757009818)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $4.99 | per year |
| Lifetime Membership | $9.99 | one-time |


## Frequently asked questions

### Is PROS Clock free?

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

### Is Liquid Clock free?

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

### Do PROS Clock or Liquid Clock have ads?

Neither PROS Clock nor Liquid Clock shows ads.

### Which is updated more often, PROS Clock or Liquid Clock?

PROS Clock ships an update monthly, and Liquid Clock fortnightly. Most recently, PROS Clock was updated on September 23, 2026 and Liquid Clock on September 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.*