# Time Zone Converter Calculator vs ClocksOn

The clearest difference is in-app purchases: ClocksOn at none against Time Zone Converter Calculator's 3. ClocksOn also leads on update cadence (every 2 months vs every 5 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Time Zone Converter Calculator sells 3 in-app purchases, starting at $2.99 per 7 days. ClocksOn asks for nothing beyond the download.

Time Zone Converter Calculator ships an update every 5 months, ClocksOn every 2 months. The most recent releases landed on October 28, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Time Zone Converter Calculator | ClocksOn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clockson-bedside-clock/id6792508849/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | — | Free |
| Size | 3 MB | 28 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [LEAN ASIA CO., LTD](https://appshunter.io/developer/1815050814) | [CODERWISE INC.](https://appshunter.io/developer/6792508851) |

## What reviewers say

### Time Zone Converter Calculator

[App page](https://appshunter.io/ios/app/time-zone-converter-calculator/id6772160066)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Meeting Planner Weekly | $2.99 | per 7 days |
| Daylight Saving Yearly | $14.99 | per year |
| UTC Offset Lifetime | $29.99 | one-time |


### ClocksOn

[App page](https://appshunter.io/ios/app/clockson-bedside-clock/id6792508849)

This app transforms your iPhone or iPad into a clear, full-screen bedside clock. It features adaptive brightness that adjusts to your room's light and offers customizable themes and orientation locks for optimal viewing.

**Highlights:** Full-screen, glanceable clock face, Adaptive brightness adjusts to room light, Light, dark, or system theme options, Portrait or landscape orientation lock, No ads or notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Time Zone Converter Calculator free?

Time Zone Converter Calculator is free to download, with in-app purchases available.

### Is ClocksOn free?

ClocksOn is free to download, with no in-app purchases.

### Do Time Zone Converter Calculator or ClocksOn have ads?

Neither Time Zone Converter Calculator nor ClocksOn shows ads.

### Which is updated more often, Time Zone Converter Calculator or ClocksOn?

Time Zone Converter Calculator ships an update every 5 months, and ClocksOn every 2 months. Most recently, Time Zone Converter Calculator was updated on October 28, 2026 and ClocksOn on October 27, 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.*