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Sextant Calculator icon

Sextant Calculator

Will Downing

Category: Navigation
Sign in to watchView on the App Store (opens in a new tab)
Rankings updated

Current rank

#87 United States · Paid · Navigation
Was
Not charting24 hours ago
Change
New entry
Best
#87in 24 hours
Full history

Price and ratings

Price
$1.00
Rating
—
Ratings
0United States

Versions

Released
13 Jan 2026
Last update
Version 1.1
Requires
iOS 15.0 or later

Details

Size
2.4 MB
Languages
1
Website
slinkywill.github.io (opens in a new tab)

Sextant Calculator is the essential tool for celestial navigators, designed to simplify the arithmetic of sight reductions. FEATURES - Angle Calculations Enter angles in degrees and decimal minutes (DD° MM.m') format. Add, subtract, or divide angles with a single tap. Perfect for working through sun, star, and planet sights. - Time Calculations Work with hours, minutes, and seconds. Add and subtract times for GMT calculations, zone time conversions, and chronometer checks. Results…

Countries1In 1 chart right now
Best rank now#87United States Paid · Navigation
Ratings, 7 days—Needs a week of rating history
Longest chart run1 dayUnited States Paid · Navigation

Competitors

Full chart

Top of Paid · Navigation in United States. Sextant Calculator is #87 there. Changes are over 7 days.

  1. #1 (number one)
    MilGPS icon
    MilGPSCascode Labs Pty Ltd
    No change
  2. #2
    Solocator - GPS Field Camera icon
    Solocator - GPS Field CameraCivi Corp
    No change
  3. #3
    Land Nav Assistant icon
    Land Nav AssistantGammon Applications, LLC
    Up 2 places
  4. #4
    Blitzer.de PRO icon
    Blitzer.de PROEifrig Media
    No change
  5. #5
    Sun Seeker - Sunlight Tracker icon
    Sun Seeker - Sunlight TrackerozPDA
    Down 2 places
  6. #6
    Sporty's E6B Flight Computer icon
    Sporty's E6B Flight ComputerSporty's Pilot Shop
    No change
  7. #7
    Theodolite icon
    TheodoliteCraig Hunter
    No change
  8. #8
    TACNAV-X: Military Navigation icon
    TACNAV-X: Military NavigationTacNav Systems LLC
    Up 3 places
  9. #9
    aprs.fi icon
    aprs.fiGainIO
    Up 3 places
  10. #10
    NavRules icon
    NavRulesMintaka Innovations
    Up 14 places
  11. #11
    Exit Strategy NYC Subway Map icon
    Exit Strategy NYC Subway MapJWeg Ventures LLC
    Up 7 places
  12. #12
    Find93 icon
    Find93Paul Kragthorpe
    Up 3 places
  13. #13
    EZ Sextant icon
    EZ SextantThird Reef Software LLC
    Change unknown
  14. #14
    NZ Topo50 South Island icon
    NZ Topo50 South IslandRight Place Resources
    Change unknown
  15. #15
    Speedometer 55 Pro. GPS kit. icon
    Speedometer 55 Pro. GPS kit.Stanislav Dvoychenko
    Down 7 places
  16. #16
    MilGPS PRO icon
    MilGPS PROmustafa pistofoglu
    Up 11 places
  17. #17
    Holding Pattern Trainer icon
    Holding Pattern TrainerFLEMINGER MEDIA LLC
    Down 7 places
  18. #18
    Cachly - Geocaching icon
    Cachly - GeocachingZed Said Studio LLC
    Up 1 place
  19. #19
    Route 66 Centennial Guide icon
    Route 66 Centennial GuidePoul David Rasmussen
    Up 12 places
  20. #20
    Range Finder Tool icon
    Range Finder ToolNatalia Gavrylova
    Up 2 places

Store listing

How the app presents itself on the App Store. Select a screenshot to open it full size.

Sextant Calculator screenshot 1 of 1

What's new

Version 1.1 · 2 Sep 2026 · 1 month ago

- Added developer website link

Current rankings

Every chart this app is in right now, best position first.

Sextant Calculator chart positions
ChartRank24 h7 daysBestDays on chart
United States· Paid · Navigation · best #87 · 1 day#87New entryChange unknown#871

Rank history

Higher on the chart is better: #1 is at the top.

Sign in to see 30 days, 90 days and all history.

United States · Paid · Navigation: best #87, latest #87, over 2 snapshots since 16 Oct.

United States · Paid · Navigation: best #87, latest #87, over 2 snapshots since 16 Oct.

Ranking events

Entries, big moves, #1s and new versions we've recorded.

  1. Entered the Paid · Navigation chart at #87United States