# Big Clock vs Dual Flip Clock

The clearest difference is in-app purchases: Dual Flip Clock at none against Big Clock's 7. Dual Flip Clock also leads on rating (5.0 vs 4.7). Big Clock's advantage is ratings volume (6 vs 2). On price, review sentiment, update cadence and ads there is nothing between them.

Both are free to download. Big Clock sells 7 one-off in-app purchases. Dual Flip Clock asks for nothing beyond the download.

Dual Flip Clock holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 6 and 2 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Big Clock ships an update weekly, Dual Flip Clock every 10 days. The most recent releases landed on October 31, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Big Clock | Dual Flip Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (6 ratings)](https://appshunter.io/ios/app/big-clock-always-on-display/id6760553772/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/dual-flip-clock/id6766014702/reviews)** |
| Number of ratings | **6** | 2 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 10 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 74 MB | 18 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Nataliia Zarudna](https://appshunter.io/developer/1871489027) | [路 林](https://appshunter.io/developer/1896152952) |

## What reviewers say

### Big Clock

[App page](https://appshunter.io/ios/app/big-clock-always-on-display/id6760553772)

Transform your device into a large, clear digital clock. Ideal for bedside tables, desks, or workouts, it offers an always-on display with customizable themes and brightness for easy readability in any environment.

**Highlights:** Fullscreen digital clock, Always-on display mode, Light and dark themes, Brightness control, Portrait and landscape support, Minimal design

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee Support | $1.99 | one-time |
| Premium | $2.99 | one-time |
| Premium + Coffee | $4.99 | one-time |
| Coffee & Croissant Support | $5.99 | one-time |
| Premium + Coffee + Croissant | $8.99 | one-time |
| Big Support | $12.99 | one-time |
| Premium + Big Support | $14.99 | 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:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Big Clock free?

Big Clock 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, Big Clock or Dual Flip Clock?

Dual Flip Clock is rated higher. Big Clock averages 4.7 out of 5 from 6 ratings, while Dual Flip Clock averages 5.0 from 2 ratings.

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

Neither Big Clock nor Dual Flip Clock shows ads.

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

Big Clock ships an update weekly, and Dual Flip Clock every 10 days. Most recently, Big Clock was updated on October 31, 2026 and Dual Flip Clock on October 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.*