# Shadowline vs Binary Clock

The clearest difference is iOS requirement: Shadowline at 17.0 against Binary Clock's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Shadowline sells 1 one-off in-app purchase and Binary Clock sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Shadowline ships an update every 2 days, Binary Clock daily. Both last shipped on October 31, 2026.

## The numbers

| Metric | Shadowline | Binary Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/shadowline-world-time-zones/id6776769068/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 days | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 7 MB |
| Requires iOS | **17.0** | 26.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [KKB CoRi Technologies Private Limited](https://appshunter.io/developer/1887008624) | [Super, Inc.](https://appshunter.io/developer/439129974) |

## What reviewers say

### Shadowline

[App page](https://appshunter.io/ios/app/shadowline-world-time-zones/id6776769068)

Visualize time zones with elegant clock faces or a single 24-hour dial. Plan meetings, manage jet lag with science-based advice, and view a live day & night map. Widgets offer at-a-glance city times.

**Highlights:** World clocks with customizable themes, 24-hour dial for at-a-glance time comparison, Meeting planner with calendar integration, Jet lag adjustment plans, Live day & night map with moon phase, Home and Lock Screen widgets

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Shadowline Pro | $2.49 | one-time |


### Binary Clock

[App page](https://appshunter.io/ios/app/binary-clock-standby/id6786876264)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Binary Clock Pro | $2.99 | one-time |


## Frequently asked questions

### Is Shadowline free?

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

### Is Binary Clock free?

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

### Do Shadowline or Binary Clock have ads?

Neither Shadowline nor Binary Clock shows ads.

### Which is updated more often, Shadowline or Binary Clock?

Shadowline ships an update every 2 days, and Binary Clock daily. Most recently, Shadowline was updated on October 31, 2026 and Binary Clock on October 31, 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.*