# Dots Calendar vs Big Time Clock

The clearest difference is price: Dots Calendar at Free against Big Time Clock's $3.49. Big Time Clock's advantage is in-app purchases (none vs 1). On update cadence, ads, device support and iOS requirement there is nothing between them.

Dots Calendar is free to download; Big Time Clock costs $3.49 up front. Dots Calendar sells 1 one-off in-app purchase. Big Time Clock asks for nothing beyond the download.

Dots Calendar ships an update every 5 weeks, Big Time Clock every 3 weeks. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Dots Calendar | Big Time Clock |
| --- | --- | --- |
| Price | **Free** | $3.49 |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/big-time-clock-full-screen/id6763140176/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 1 MB | 1 MB |
| Requires iOS | **18.2** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Nicolas Schimmelpfennig](https://appshunter.io/developer/1884081235) | [Matthew Avery](https://appshunter.io/developer/1893424317) |

## What reviewers say

### Dots Calendar

[App page](https://appshunter.io/ios/app/dots-calendar/id6760355945)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime license | $2.99 | one-time |


### Big Time Clock

[App page](https://appshunter.io/ios/app/big-time-clock-full-screen/id6763140176)

Transform your device into a large, easy-to-read full-screen clock for any room. Enjoy a clear display with customizable typography and orientation, perfect for a nightstand or desk. This app offers a one-time purchase with all features unlocked, no ads or subscriptions.

**Highlights:** Full-screen digital clock, Elegant analog face, Always-on display, Portrait and landscape modes, Customizable typography, Day and date display

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

**In-app purchases:** none


## Frequently asked questions

### Is Dots Calendar free?

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

### Is Big Time Clock free?

Big Time Clock costs $3.49, with no in-app purchases.

### Do Dots Calendar or Big Time Clock have ads?

Neither Dots Calendar nor Big Time Clock shows ads.

### Which is updated more often, Dots Calendar or Big Time Clock?

Dots Calendar ships an update every 5 weeks, and Big Time Clock every 3 weeks. Most recently, Dots Calendar was updated on October 7, 2026 and Big Time Clock on October 12, 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.*