# Oceanodesy vs World Clock

The clearest difference is in-app purchases: Oceanodesy at none against World Clock's 1. Oceanodesy also leads on iOS requirement (8.1 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. World Clock sells 1 one-off in-app purchase. Oceanodesy asks for nothing beyond the download.

Oceanodesy ships an update every 4 weeks, World Clock every 5 weeks. The most recent releases landed on November 1, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Oceanodesy | World Clock |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (6 ratings)](https://appshunter.io/ios/app/oceanodesy/id513043669/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 72.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Free | — |
| Size | 5 MB | 41 MB |
| Requires iOS | **8.1** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Oceaneering International, Inc.](https://appshunter.io/developer/1262887736) | [Tomash Sugint](https://appshunter.io/developer/1896504334) |

## 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


### World Clock

[App page](https://appshunter.io/ios/app/world-clock-timeshift/id6768507524)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TimeShift Pro | $3.99 | one-time |


## Frequently asked questions

### Is Oceanodesy free?

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

### Is World Clock free?

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

### Do Oceanodesy or World Clock have ads?

Neither Oceanodesy nor World Clock shows ads.

### Which is updated more often, Oceanodesy or World Clock?

Oceanodesy ships an update every 4 weeks, and World Clock every 5 weeks. Most recently, Oceanodesy was updated on November 1, 2026 and World 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.*