# ZenClock vs Big Clock

The clearest difference is review sentiment: Big Clock at 100% against ZenClock's 50%. Big Clock also leads on rating (4.7 vs 3.0) and update cadence (weekly vs every 3 months). ZenClock's advantage is monetization model (free vs free with in-app purchases). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. ZenClock sells 2 in-app purchases, starting at $1.99 per month and Big Clock sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Big Clock holds the better App Store score, 4.7 against 3.0. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews point the same way: 50% of ZenClock's written reviews are positive against 100% of Big Clock's.

ZenClock ships an update every 3 months, Big Clock weekly. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | ZenClock | Big Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.0 (2 ratings)](https://appshunter.io/ios/app/zenclock-minimal-clock/id953822313/reviews) | **[4.7 (6 ratings)](https://appshunter.io/ios/app/big-clock-always-on-display/id6760553772/reviews)** |
| Number of ratings | 2 | **6** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 8 MB | 74 MB |
| Requires iOS | 26.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Socially Conscious Software LLC](https://appshunter.io/developer/302019503) | [Nataliia Zarudna](https://appshunter.io/developer/1871489027) |

## What reviewers say

### ZenClock

[App page](https://appshunter.io/ios/app/zenclock-minimal-clock/id953822313)

This app transforms your iPad or iPhone into a visually appealing desk clock. It offers interactive time displays with customizable background color modes, including a unique spectrum that cycles through millions of colors over time.

**Highlights:** Minimalist design, Interactive time display, Widgets for quick access, Single background color modes, Color Clock modes with spectrum cycling, Optimized for desk stands

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Zen Clock Plus Monthly | $1.99 | per month |
| Zen Clock Plus Yearly | $19.99 | per year |


### 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 |


## Frequently asked questions

### Is ZenClock free?

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

### Is Big Clock free?

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

### Which has better reviews, ZenClock or Big Clock?

Big Clock is rated higher. ZenClock averages 3.0 out of 5 from 2 ratings, while Big Clock averages 4.7 from 6 ratings.

### Do ZenClock or Big Clock have ads?

Neither ZenClock nor Big Clock shows ads.

### Which is updated more often, ZenClock or Big Clock?

ZenClock ships an update every 3 months, and Big Clock weekly. Most recently, ZenClock was updated on October 24, 2026 and Big Clock on October 25, 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.*