# Hourglass vs AClock

The clearest difference is price: Hourglass at Free against AClock's $0.99. Hourglass also leads on iOS requirement (8.2 vs 11.0). AClock's advantage is rating (4.7 vs 4.0) and review sentiment (97% vs 80%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Hourglass is free to download; AClock costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

AClock holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 4 and 10 respectively. Written reviews point the same way: 80% of Hourglass's written reviews are positive against 97% of AClock's.

Both ship on a similar rhythm, roughly fortnightly. The most recent releases landed on June 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Hourglass | AClock |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [4.0 (4 ratings)](https://appshunter.io/ios/app/hourglass-countdown-clock/id1004790367/reviews) | **[4.7 (10 ratings)](https://appshunter.io/ios/app/aclock-digital-flip-clock/id1500167033/reviews)** |
| Number of ratings | 4 | **10** |
| Positive reviews | 80.0% of reviews | **96.6% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | Fortnightly |
| Monetization | **Free** | Paid |
| Size | 14 MB | 10 MB |
| Requires iOS | **8.2** | 11.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Mat Cartmill](https://appshunter.io/developer/971901815) | [Zhengzhou Sibo Intelligent Technology Co., Ltd.](https://appshunter.io/developer/803144645) |

## What reviewers say

### Hourglass

[App page](https://appshunter.io/ios/app/hourglass-countdown-clock/id1004790367)

A minimalistic countdown clock app designed for iPhone. It offers a clean interface with a visual progress indicator and supports multiple time units. Easily share countdowns and receive notifications when events conclude.

**Highlights:** Minimalistic design, Multiple time units, Visual progress indicator, Unlimited countdowns, Sharable content, Push notifications, Notification Center widget, Apple Watch compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### AClock

[App page](https://appshunter.io/ios/app/aclock-digital-flip-clock/id1500167033)

This minimalist clock app offers a customizable full-screen display with options for flip or classic digital styles. It includes productivity tools like a stopwatch, countdown, and Pomodoro timer, along with personalized features such as countdowns to important dates and customizable slogans. The app is designed for extreme power saving and eye protection with a night mode.

**Highlights:** Flip and classic digital clock styles, Stopwatch, countdown, and Pomodoro timer, Countdown to dates and anniversaries, Customizable colors, fonts, and slogans, Night mode for eye protection, 12/24 hour system support

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Hourglass free?

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

### Is AClock free?

AClock costs $0.99, with no in-app purchases.

### Which has better reviews, Hourglass or AClock?

AClock is rated higher. Hourglass averages 4.0 out of 5 from 4 ratings, while AClock averages 4.7 from 10 ratings.

### Do Hourglass or AClock have ads?

Neither Hourglass nor AClock shows ads.

### Which is updated more often, Hourglass or AClock?

Hourglass ships an update fortnightly, and AClock fortnightly. Most recently, Hourglass was updated on June 10, 2026 and AClock on October 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*