# 45CLOCK vs Flip Clock 3D

The clearest difference is in-app purchases: 45CLOCK at none against Flip Clock 3D's 1. 45CLOCK also leads on ads (none vs shown) and rating (5.0 vs 4.8). Flip Clock 3D's advantage is update cadence (weekly vs every 16 months) and ratings volume (24 vs 3). On price and device support there is nothing between them.

Both are free to download. Flip Clock 3D sells 1 one-off in-app purchase. 45CLOCK asks for nothing beyond the download.

45CLOCK holds the better App Store score, 5.0 against 4.8. 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.

45CLOCK ships an update every 16 months, Flip Clock 3D weekly. The most recent releases landed on September 22, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | 45CLOCK | Flip Clock 3D |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/45clock/id909198242/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 |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 16 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 6 MB | 206 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tomohiro Yamashita](https://appshunter.io/developer/658724298) | [乃君 黄](https://appshunter.io/developer/1337343608) |

## What reviewers say

### 45CLOCK

[App page](https://appshunter.io/ios/app/45clock/id909198242)

This utility app reimagines timekeeping by setting an hour to 45 minutes. The clock's long hand completes a full cycle in 45 minutes, offering a unique perspective on daily hours.

**Highlights:** 45-minute hour concept, Unique clock face, Alternative time perception, Simple utility tool

**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 45CLOCK free?

45CLOCK 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, 45CLOCK or Flip Clock 3D?

45CLOCK is rated higher. 45CLOCK averages 5.0 out of 5 from 3 ratings, while Flip Clock 3D averages 4.8 from 24 ratings.

### Do 45CLOCK or Flip Clock 3D have ads?

Flip Clock 3D shows ads; 45CLOCK does not.

### Which is updated more often, 45CLOCK or Flip Clock 3D?

45CLOCK ships an update every 16 months, and Flip Clock 3D weekly. Most recently, 45CLOCK 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.*