Comparison

Oceanodesy vs DTR v2

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

DTR v2

Features
Read full description

The Dynamic Targeting Reticle (DTR) allows the user to predict the bullets’ flight path using only the DTR reticle without any extemporaneous devices. The DTR accommodates not only for the gyroscopic properties of bullet flight, but also allows the user to determine mph wind speed and immediately convert to a vector corrected wind hold. Using the DTR, the user determines the distance in yards/meters and immediately holds the atmospheric distance correction in yards/meters. The DTR doesn’t require a bluetooth connection which would compromise the user’s location. The DTR allows the user to score hits on multiple target engagements at varying distances because DTR wind dots instinctively allow the user to immediately determine the wind hold of the next target. The DTR allows usage past 1 mile without using the scopes’ elevation or windage knobs. The DTR app allows for checking the bullet and velocity compatibility with the specific DTR reticle. There is also a printable ballistics chart which can be used in MOA or Mils and encompass Density altitude conditions from 14Kda to -3kda atmospherics as well as windage correction for use with conventional reticle scopes.

Screenshots

Oceanodesy4 screens
DTR v24 screens

Verdict

The call

The clearest difference is price: Oceanodesy at Free against DTR v2's $17.99. Oceanodesy also leads on iOS requirement (8.1 vs 12.2). On update cadence, ads, in-app purchases 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

Oceanodesy is free to download; DTR v2 costs $17.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Oceanodesy ships an update every 4 weeks, DTR v2 monthly. The most recent releases landed on June 5, 2026 and September 9, 2026 respectively.

Scorecard2 real differences · 8 level
Oceanodesy versus DTR v2: the parameters behind the verdict, then further details
ParameterOceanodesyDTR v2
PriceFree — better$17.99
Rating4.5 (6 ratings) — better—
Positive reviews72.7% of reviews—
Number of ratings6 — better—
Update frequencyEvery 4 weeks — betterMonthly
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS8.1 — better12.2
Further details — not scored
Size5 MB57 MB
Age rating4+4+
DeveloperOceaneering International, Inc.Superior Shooting System, LLC

In-app purchases

None

Oceanodesy

No in-app purchases

None

DTR v2

No in-app purchases

Questions

Is Oceanodesy free?
Oceanodesy is free to download, with no in-app purchases.
Is DTR v2 free?
DTR v2 costs $17.99, with no in-app purchases.
Do Oceanodesy or DTR v2 have ads?
Neither Oceanodesy nor DTR v2 shows ads.
Which is updated more often, Oceanodesy or DTR v2?
Oceanodesy ships an update every 4 weeks, and DTR v2 monthly. Most recently, Oceanodesy was updated on June 5, 2026 and DTR v2 on September 9, 2026.

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