CaptainCalcCaptainCalc
LICENCES AND THIRD-PARTY NOTICES

CaptainCalc Licences and Third-party Notices

Public notices for the scientific data, native components, map stack, core libraries and app-authored maritime reference content used by CaptainCalc.

Here you can see the licences and official notices for the components and data used by CaptainCalc. The app also includes a complete open-source list for its supporting libraries.

Scientific data and native astronomy

native scientific software

IAU SOFA

Component
IAU SOFA C library in core-celestial JNI
Licence or terms
SOFA Software License
Notice files
SOFA-LICENSE.txt
Last reviewed
Software Routines from the IAU SOFA Collection were used. Copyright © International Astronomical Union Standards of Fundamental Astronomy (http://www.iausofa.org)
ocean-tide dataset

AVISO FES2022b ocean-tide heights

Component
FES2022b harmonic height coefficients used by signed CaptainCalc tide tiles
Licence or terms
AVISO standard licence; use permitted with required attribution
Last reviewed

Attribution and citation

The FES2022 Tide product was funded by CNES, produced by LEGOS, NOVELTIS and CLS, and made freely available by AVISO. CNES (2024), FES2022 (Finite Element Solution) Tidal model (Version 2024), DOI: 10.24400/527896/A01-2024.004.

CaptainCalc transformation

CaptainCalc does not redistribute the original AVISO source files. Selected harmonic coefficients are normalized, split into bounded regions and repackaged as signed CaptainCalc tiles. Tide heights, curves and related results shown by the app are derived calculations from those transformed tiles.

Independence and warranty

CNES, AVISO, LEGOS, NOVELTIS and CLS do not endorse CaptainCalc.

tidal-current dataset

AVISO FES2014a tidal currents

Component
FES2014a harmonic current coefficients used by signed CaptainCalc current tiles
Licence or terms
AVISO standard licence; use permitted with required attribution
Last reviewed

Attribution and citation

FES2014 was produced by NOVELTIS, LEGOS and CLS and distributed by AVISO+, with support from CNES.

CaptainCalc transformation

CaptainCalc does not redistribute the original AVISO source files. Selected current coefficients are normalized, split into bounded regions and repackaged as signed CaptainCalc tiles. Current speed, direction, curves and related results are derived calculations from those transformed tiles.

Independence and warranty

CNES, AVISO, LEGOS, NOVELTIS and CLS do not endorse CaptainCalc.

official station data and predictions

NOAA CO-OPS Tides & Currents

Component
NOAA CO-OPS station search, water-level predictions and available station events
Licence or terms
U.S. Government public-domain information unless otherwise annotated; attribution requested
Last reviewed

Attribution and citation

Source: NOAA/NOS Center for Operational Oceanographic Products and Services (CO-OPS), Tides & Currents web services.

CaptainCalc transformation

CaptainCalc may normalize station identifiers, timestamps, datum labels and response fields, then present derived calculations alongside the source evidence. Modified or derived content is not official NOAA/NOS material.

Independence and warranty

NOAA/NOS does not endorse CaptainCalc. Information is provided as-is and without warranty; use does not imply U.S. Government endorsement.

Maps and geospatial components

Application platform libraries

Google Android SDK family

Firebase SDK and Google Play services

Component
Firebase Analytics, Auth, Messaging, Crashlytics and App Check; Google Play services and Play runtime libraries resolved in the release graph
Licence or terms
Android Software Development Kit License (vendor SDK terms)
Last reviewed
networking and I/O libraries

OkHttp and Okio

Component
com.squareup.okhttp3:okhttp:5.3.2 and com.squareup.okio:okio:3.16.4 in the resolved release graph
Licence or terms
Apache License 2.0
Notice files
Apache-2.0.txt
Last reviewed
Android image-loading library family

Coil

Component
io.coil-kt:coil-compose:2.5.0 and io.coil-kt:coil-svg:2.5.0
Licence or terms
Apache License 2.0
Notice files
Apache-2.0.txt
Last reviewed

Maritime reference content

Think a notice is missing? Contact: developer@captaincalc.com.tr