# Oceanodesy vs Global Time Zone Converter

The clearest difference is rating: Global Time Zone Converter at 5.0 against Oceanodesy's 4.5. Global Time Zone Converter also leads on update cadence (every 9 days vs every 4 weeks). Oceanodesy's advantage is ratings volume (6 vs 1) and iOS requirement (8.1 vs 12.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Global Time Zone Converter holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Oceanodesy has 6 ratings behind it against 1, so its average is the more settled of the two.

Oceanodesy ships an update every 4 weeks, Global Time Zone Converter every 9 days. The most recent releases landed on October 16, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Oceanodesy | Global Time Zone Converter |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (6 ratings)](https://appshunter.io/ios/app/oceanodesy/id513043669/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/global-time-zone-converter/id6757723429/reviews)** |
| Number of ratings | **6** | 1 |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 weeks | **Every 9 days** |
| Monetization | Free | Free |
| Size | 5 MB | 31 MB |
| Requires iOS | **8.1** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oceaneering International, Inc.](https://appshunter.io/developer/1262887736) | [Seth Baugh](https://appshunter.io/developer/1812248314) |

## What reviewers say

### Oceanodesy

[App page](https://appshunter.io/ios/app/oceanodesy/id513043669)

This utility app converts between geodetic and grid coordinate systems. It supports various units for latitude, longitude, and grid coordinates, along with multiple datums and projections for accurate geospatial transformations.

**Highlights:** Geodetic to grid coordinate conversion, Grid to geodetic coordinate conversion, Multiple latitude/longitude formats (DD, DMM, DMS), Multiple grid coordinate units (US Feet, Intl Feet, Meters), Support for multiple datums (WGS84, NAD27, NAD83, etc.), Support for multiple projections (UTM, SPCS27, SPCS83), Store and export projected coordinates

**Features:** macOS Compatibility

**In-app purchases:** none


### Global Time Zone Converter

[App page](https://appshunter.io/ios/app/global-time-zone-converter/id6757723429)

Easily convert times between different cities, countries, and time zones. This tool is perfect for scheduling international meetings, planning global travel, or coordinating with contacts worldwide, ensuring you always have accurate time information.

**Highlights:** Time zone conversion, City and country lookup, Meeting scheduling aid, Travel planning tool, Global coordination

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Oceanodesy free?

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

### Is Global Time Zone Converter free?

Global Time Zone Converter is free to download, with no in-app purchases.

### Which has better reviews, Oceanodesy or Global Time Zone Converter?

Global Time Zone Converter is rated higher. Oceanodesy averages 4.5 out of 5 from 6 ratings, while Global Time Zone Converter averages 5.0 from 1 ratings.

### Do Oceanodesy or Global Time Zone Converter have ads?

Neither Oceanodesy nor Global Time Zone Converter shows ads.

### Which is updated more often, Oceanodesy or Global Time Zone Converter?

Oceanodesy ships an update every 4 weeks, and Global Time Zone Converter every 9 days. Most recently, Oceanodesy was updated on October 16, 2026 and Global Time Zone Converter 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.*