Comparison

Oceanodesy vs World Clock

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

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
Read full description

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)

About

World Clock

Features
Read full description

Pin your cities once. Slide time forward or back. See the whole world's clock at a glance. Instantly know who's awake, what day it is for them, and when a moment works for everyone. WHAT YOU GET — Time shift scrubber: drag up to ±12 hours in 15 min, 30 min, or 1 hr steps — Find Best Time: jump straight to the next window when everyone's awake — Flags, local times, UTC offsets, and timezone names for every city — Day/night indicator so you can see at a glance who's asleep — Tomorrow/yesterday badge when a city's date differs from yours — Tap any city's time to copy it to clipboard — One-tap share of the current shifted moment across all your cities, or as an image card — City search from a worldwide database — Reorder and remove cities freely — Dark mode, light mode, 12-hour or 24-hour clock PRIVATE BY DEFAULT Your city list lives on your device. Works offline. No account needed. TimeShift Pro is a one-time purchase, no subscription: unlimited cities (free stays at 12), four premium accent themes, unlimited Find Best Time searches, Share as Card, and two alternate app icons. Built for remote workers, founders, frequent travelers — anyone juggling more than one clock.

Screenshots

Oceanodesy4 screens
World Clock4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard2 real differences · 8 level
Oceanodesy versus World Clock: the parameters behind the verdict, then further details
ParameterOceanodesyWorld Clock
PriceFreeFree
Rating4.5 (6 ratings) — better—
Positive reviews72.7% of reviews—
Number of ratings6 — better—
Update frequencyEvery 4 weeks — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.1 — better15.1
Further details — not scored
Size5 MB41 MB
Age rating4+4+
DeveloperOceaneering International, Inc.Tomash Sugint

In-app purchases

None

Oceanodesy

No in-app purchases

1 purchases

World Clock

One-time1
  • TimeShift Pro$3.99

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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