# Global Time Machine vs Tmzn

The clearest difference is in-app purchases: Tmzn at none against Global Time Machine's 2. Tmzn also leads on review sentiment (79% vs 58%) and update cadence (every 3 days vs every 5 days). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 3.7 for Global Time Machine against 3.8 for Tmzn. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews are what separate them: 58% of Global Time Machine's written reviews are positive against 79% of Tmzn's.

Global Time Machine ships an update every 5 days, Tmzn every 3 days. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

## The numbers

| Metric | Global Time Machine | Tmzn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (7 ratings)](https://appshunter.io/ios/app/global-time-machine/id1082674619/reviews) | **[3.8 (4 ratings)](https://appshunter.io/ios/app/tmzn-time-zone-converter/id1453239207/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | 58.3% of reviews | **78.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 12 MB | 59 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | **iPhone, Mac, Apple Watch** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [theMakeApp](https://appshunter.io/developer/1014975385) | [Paul Noble](https://appshunter.io/developer/1440082066) |

## What reviewers say

### Global Time Machine

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

Visualize all your important time zones on a single, interactive line. Plan meetings and calls across different regions with ease, and see day and night cycles at a glance. Includes calendar integration and automatic location detection.

**Highlights:** World clock for 34,000+ cities, Drag to travel in time, Day and night at a glance, Calendar integration, Automatic location detection, Offline 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 |


### Tmzn

[App page](https://appshunter.io/ios/app/tmzn-time-zone-converter/id1453239207)

This app helps you easily manage and visualize time differences across the globe. Its intuitive interface allows you to see day and night cycles at a glance and schedule events that accommodate multiple time zones.

**Highlights:** Day-night world map visualization, Time shifting with swipe gestures, Calendar integration for event scheduling, Extensive city selection, Instant time updates

**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 Tmzn free?

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

### Which has better reviews, Global Time Machine or Tmzn?

Tmzn is rated higher. Global Time Machine averages 3.7 out of 5 from 7 ratings, while Tmzn averages 3.8 from 4 ratings.

### Do Global Time Machine or Tmzn have ads?

Neither Global Time Machine nor Tmzn shows ads.

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

Global Time Machine ships an update every 5 days, and Tmzn every 3 days. Most recently, Global Time Machine was updated on November 6, 2026 and Tmzn on November 2, 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.*