# Clock Seconds vs Dual Flip Clock

The clearest difference is in-app purchases: Dual Flip Clock at none against Clock Seconds's 2. Dual Flip Clock also leads on update cadence (every 10 days vs every 4 weeks). Clock Seconds's advantage is iOS requirement (13.0 vs 17.0). On price, rating, ratings volume and ads there is nothing between them.

Both are free to download. Clock Seconds sells 2 one-off in-app purchases. Dual Flip Clock asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Clock Seconds against 5.0 for Dual Flip Clock. Both are backed by a comparable volume of ratings — 4 and 2 respectively.

Clock Seconds ships an update every 4 weeks, Dual Flip Clock every 10 days. The most recent releases landed on October 2, 2026 and September 18, 2026 respectively.

## The numbers

| Metric | Clock Seconds | Dual Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (4 ratings)](https://appshunter.io/ios/app/clock-seconds/id6446502527/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/dual-flip-clock/id6766014702/reviews) |
| Number of ratings | **4** | 2 |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 10 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 22 MB | 10 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [David Engler - Apps](https://appshunter.io/developer/1678138767) | [路 林](https://appshunter.io/developer/1896152952) |

## What reviewers say

### Clock Seconds

[App page](https://appshunter.io/ios/app/clock-seconds/id6446502527)

A highly accurate and customizable digital clock that fills your screen. Offers adjustable colors, sizes, and 12/24 hour formats. Designed for minimal battery usage.

**Highlights:** Largest digital clock display, Accurate atomic time comparison, Customizable colors and dimensions, 12/24 hour format options, Minimal battery consumption design, Portrait mode settings access

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |
| Unlock | $9.99 | one-time |


### Dual Flip Clock

[App page](https://appshunter.io/ios/app/dual-flip-clock/id6766014702)

Transform an old phone into a stylish desktop clock with this app. Easily switch between time zones for different cities or schools, and enjoy automatic day and night modes for a comfortable viewing experience.

**Highlights:** Desktop clock conversion, Multiple city/school time zones, Vertical and horizontal layouts, Automatic Day/Night Modes, Customizable display

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

**In-app purchases:** none


## Frequently asked questions

### Is Clock Seconds free?

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

### Is Dual Flip Clock free?

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

### Which has better reviews, Clock Seconds or Dual Flip Clock?

Clock Seconds and Dual Flip Clock are both rated 5.0 out of 5 on the App Store, from 4 and 2 ratings respectively.

### Do Clock Seconds or Dual Flip Clock have ads?

Neither Clock Seconds nor Dual Flip Clock shows ads.

### Which is updated more often, Clock Seconds or Dual Flip Clock?

Clock Seconds ships an update every 4 weeks, and Dual Flip Clock every 10 days. Most recently, Clock Seconds was updated on October 2, 2026 and Dual Flip Clock on September 18, 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.*