EZ Sextant icon

Third Reef Software

For professional mariners, passage makers, and sailing enthusiasts interested in traditional celestial navigation.

Known forEZ Sextant
1app5.0(4)Navigation

Snapshot

Who is Third Reef Software?

Providing specialized celestial navigation tools for mariners. Enables open-water positioning without GPS or internet connectivity.

Target audience

Professional marinersPassage makersSailing enthusiasts interested in traditional celestial navigation

Rivals analysis in progress

Portfolio

1
app
Navigation1

Last updated

EZ Sextant

v1.9

8mo ago

Maintenance

Publisher DNA

What defines Third Reef Software?

Publisher DNA

Primary focus

Navigation tools for maritime enthusiasts

Scale

indie

Target audience

Professional mariners, passage makers, and sailing enthusiasts interested in traditional celestial navigation.

Signature Patterns

  • •Focus on offline-first utility for specialized maritime tasks
  • •Paid pricing model
  • •Integration of camera-based data input for real-world plotting
  • •Targeting a niche, high-intent user base of mariners
Maintenance

Portfolio momentum

Released 3 updates in the last 6 months for their single active application.

Last release 94d agoActive apps 1

Portfolio

What does Third Reef Software ship?

Apps

1 app analysed

The Analyst's Read

The bottom line on Third Reef Software

Bottom line

Third Reef Software is a single-product indie developer serving a highly specific maritime niche. Their focus on offline, traditional navigation methods provides a clear, albeit limited, value proposition for professional and recreational sailors.

Frequently asked questions

How many apps does Third Reef Software publish?
Third Reef Software has 1 app tracked by Marlvel, primarily in the Navigation category.
What kind of apps does Third Reef Software make?
Third Reef Software's portfolio is concentrated in Navigation, with an average rating of 5.0/5 across rated apps.
What is Third Reef Software's top app?
By review volume across the portfolio, EZ Sextant is Third Reef Software's best-known app tracked by Marlvel.

What fed this analysis

Apps analyzed:
1
With full intel:
0
With overview:
1
Website scraped:
yes
Social presence:
yes

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Third Reef Software, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Third Reef Software intelligence.” Updated 2026-05-09. https://marlvel.ai/publishers/third-reef-software-llc

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Data licensed under CC-BY-NC 4.0