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Terrafin Mobile

by Terrafin Satellite Imaging

  • Weather
  • Free
  • Small & simple · 97
View on the App Store
Rating
5.0
1 ratings · US storefront
Top 100%among 70 Weather apps
Last update
Sep 5, 2026
Version 3.0.6
Size
49 MB
Category
Weather
Tracked since
Oct 9, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

Terrafin has provided key satellite data online for anglers, divers, and researchers since 1998. Now, Terrafin Mobile gives subscribers easy access to this data from your iPhone or iPad.

Note: The Terrafin Mobile app installs with an assortment of sample charts, that you can use to try the various features. Access to current data requires an active subscription to the Terrafin website, available @ $119/year.

Terrafin Mobile Features:

  • Browse Terrafin website to easily select charts.
  • Charts are downloaded to device for use offline.
  • Tap and drag cursor for accurate positioning.
  • Latitude / Longitude / Temperature readings at cursor.
  • Mark waypoints.
  • Distance & Bearing to waypoint or cursor.
  • Real time vessel location and track displayed on chart (GPS enabled device required).

Data available with Terrafin Mobile

  • Hi Res (1.1km) Sea Surface Temperature Charts, updated multiple times daily.
  • Hi Res (1.1km) Chlorophyll / Ocean Color Charts, updated daily.
  • Altimetry (Sea Surface Height) Charts, updated daily.
  • Geostrophic Currents Charts, updated daily.
  • CloudFree SST charts, updated daily.
  • LEO 1 Day Composite SST charts, updated daily.

Areas of Coverage:

  • U.S. East, West, and Gulf Coasts
  • Alaska & Hawaii
  • Caribbean & Bermuda
  • Mexico, including Baja and Sea of Cortez
  • Central America (Pacific Coast)
  • Venezuela
  • Brazil
  • Australia East Coast
  • Northwest Africa

SAVE FUEL – SAVE $$$ - CATCH MORE FISH!

What’s new

Release notes for the latest version, as written by the developer.

v3.0.6

Bug fixes, improved some controls for easier use on iPhones.

Rank history

Daily position in the Grenada charts. #1 is at the top.

Best rank
#13
Current rank
#14
Days charting
7 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

97/100

Small & simple

  • Developer size100% · 25

    Developer: 1 app on the charts

  • Audience size100% · 20

    Ratings: 1

  • App size100% · 10

    Size: 49 MB

  • Price model80% · 15

    Price model: free with in-app purchases

  • Demand proof100% · 30

    Best rank #1, 11 countries

An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2

How the score works

Version history

  • 3.0.6LatestReleased Sep 5, 2026