# Global Time Machine vs Tsinglan care

The clearest difference is in-app purchases: Tsinglan care at none against Global Time Machine's 2. Tsinglan care also leads on iOS requirement (13.0 vs 17.0). Global Time Machine's advantage is ads (none vs shown) and update cadence (every 4 days vs every 2 weeks). On price and device support there is nothing between them.

Both are free to download. Global Time Machine sells 2 in-app purchases, starting at $0.99 per month. Tsinglan care asks for nothing beyond the download.

Global Time Machine ships an update every 4 days, Tsinglan care every 2 weeks. The most recent releases landed on November 2, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Global Time Machine | Tsinglan care |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (7 ratings)](https://appshunter.io/ios/app/global-time-machine/id1082674619/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 58.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | **No** | Yes |
| Update frequency | **Every 4 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 11 MB | 68 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | **iPhone, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 12+ |
| Developer | [theMakeApp](https://appshunter.io/developer/1014975385) | [清澜技术(深圳)有限公司](https://appshunter.io/developer/1675818441) |

## What reviewers say

### Global Time Machine

[App page](https://appshunter.io/ios/app/global-time-machine/id1082674619)

Easily track the time in any city worldwide. Add locations to your list to plan international calls, meetings, or connect with loved ones abroad. Features DST support and quick access to nearby hours.

**Highlights:** Track time in over 20,000 cities, View nearby hours by scrolling, Convenient world clock interface, DST support for all locations, Shake to reset functionality

**Features:** Apple Watch app, Vision Pro support, iPhone Duo support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium · Monthly | $0.99 | per month |
| Premium · Yearly | $9.99 | per year |


### Tsinglan care

[App page](https://appshunter.io/ios/app/tsinglan-care/id6471384987)

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

**In-app purchases:** none


## Frequently asked questions

### Is Global Time Machine free?

Global Time Machine is free to download, with in-app purchases available.

### Is Tsinglan care free?

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

### Do Global Time Machine or Tsinglan care have ads?

Tsinglan care shows ads; Global Time Machine does not.

### Which is updated more often, Global Time Machine or Tsinglan care?

Global Time Machine ships an update every 4 days, and Tsinglan care every 2 weeks. Most recently, Global Time Machine was updated on November 2, 2026 and Tsinglan care on November 4, 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.*