Oceanodesy vs Global Time Zone Converter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oceanodesy
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.
- 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
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Oceanodesy projects and inverses between geodetic coordinates (latitude and longitude) and grid coordinates (easting and northing). Latitude and longitude coordinates are accepted and displayed in Decimal Degrees (DD.dd), Decimal Minutes (DD MM.mm), and Decimal Seconds (DD MM SS.ss). Grid coordinates are accepted and displayed in US Feet, International Feet, and Meters. Projected coordinates can be stored for later reference or export. Available Datums: - World Geodetic System 1984 (WGS84) - North American Datum 1927 (NAD27) - North American Datum 1983 (NAD83) - Sistema de Referencia Geocentrico para las AmericaS 2000 (SIRGAS2000) - Indian 1975 Datum - Hartebeesthoek 1994 Datum - European Datum 1950 Available Projections: - Universal Transverse Mercator (UTM) - State Plane Coordinate System 1927 (SPCS27) - State Plane Coordinate System 1983 (SPCS83)
Global Time Zone Converter
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.
- Time zone conversion
- City and country lookup
- Meeting scheduling aid
- Travel planning tool
- Global coordination
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Global Time Zone Converter makes it easy to convert times between cities, countries, and time zones in seconds. Whether you’re scheduling meetings, planning travel, or coordinating with people around the world, you’ll always know the correct time.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | Oceanodesy | Global Time Zone Converter |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 72.7% of reviews | — |
| Number of ratings | 6 — better | 1 |
| Update frequency | Every 4 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.1 — better | 12.0 |
| Further details — not scored | ||
| Size | 5 MB | 31 MB |
| Age rating | 4+ | 4+ |
| Developer | Oceaneering International, Inc. | Seth Baugh |
Customer experience
Oceanodesy
Global Time Zone Converter
In-app purchases
Oceanodesy
No in-app purchases
Global Time Zone Converter
No in-app purchases
Questions
Is Oceanodesy free?
Is Global Time Zone Converter free?
Which has better reviews, Oceanodesy or Global Time Zone Converter?
Do Oceanodesy or Global Time Zone Converter have ads?
Which is updated more often, Oceanodesy or Global Time Zone Converter?
Other comparisons
