# SimpleClock. vs Flip Clock 3D

The clearest difference is rating: Flip Clock 3D at 4.8 against SimpleClock.'s 4.0. Flip Clock 3D also leads on update cadence (weekly vs every 7 months) and ratings volume (24 vs 3). SimpleClock.'s advantage is in-app purchases (none vs 1) and ads (none vs shown). On price, review sentiment and device support there is nothing between them.

Both are free to download. Flip Clock 3D sells 1 one-off in-app purchase. SimpleClock. asks for nothing beyond the download.

Flip Clock 3D holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: Flip Clock 3D has 24 ratings behind it against 3, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

SimpleClock. ships an update every 7 months, Flip Clock 3D weekly. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | SimpleClock. | Flip Clock 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (3 ratings)](https://appshunter.io/ios/app/simpleclock/id838187467/reviews) | **[4.8 (24 ratings)](https://appshunter.io/ios/app/flip-clock-3d-study-time/id6670719398/reviews)** |
| Number of ratings | 3 | **24** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 7 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 1 MB | 206 MB |
| Requires iOS | **6.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Kazuo Sakamoto](https://appshunter.io/developer/333281139) | [乃君 黄](https://appshunter.io/developer/1337343608) |

## What reviewers say

### SimpleClock.

[App page](https://appshunter.io/ios/app/simpleclock/id838187467)

This utility app provides a visually appealing and easy-to-read display of the current time. It offers a clean interface for quick time checks.

**Highlights:** Clear time display, Visually appealing interface, Easy to see, Simple functionality

**Features:** macOS Compatibility

**In-app purchases:** none


### Flip Clock 3D

[App page](https://appshunter.io/ios/app/flip-clock-3d-study-time/id6670719398)

Enhance your workspace with a realistic 3D mechanical flip clock. This app helps improve focus and productivity during work or study sessions by providing a clear time display. Customize with various fonts and themes, and utilize the alarm feature when the app is active.

**Highlights:** Vivid 3D mechanical components, Adjustable viewing angles, 12/24 hour mode switching, Multiple font and theme options, Foreground alarm functionality

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock all contents | $1.99 | one-time |


## Frequently asked questions

### Is SimpleClock. free?

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

### Is Flip Clock 3D free?

Flip Clock 3D is free to download, with in-app purchases available.

### Which has better reviews, SimpleClock. or Flip Clock 3D?

Flip Clock 3D is rated higher. SimpleClock. averages 4.0 out of 5 from 3 ratings, while Flip Clock 3D averages 4.8 from 24 ratings.

### Do SimpleClock. or Flip Clock 3D have ads?

Flip Clock 3D shows ads; SimpleClock. does not.

### Which is updated more often, SimpleClock. or Flip Clock 3D?

SimpleClock. ships an update every 7 months, and Flip Clock 3D weekly. Most recently, SimpleClock. was updated on September 22, 2026 and Flip Clock 3D on September 24, 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.*