Price and ratings
- Price
- A$2.99
- Rating
- 4.9 out of 5
- Ratings
- 15France
Versions
- Released
- 8 Jan 20224 years ago
- Last update
- 3 months agoVersion 1.50
- Requires
- iOS 15.0 or later
Details
- Size
- 122.7 MB
- Languages
- 1
Master-Nav is a progressive COLREGS learning system developed by a Master Mariner. The COLREGS are notoriously difficult to learn and retain — Master-Nav makes it significantly easier through an interactive system built around how your brain actually works. Instead of guessing through random question banks, Master-Nav guides you step by step through every rule from start to finish. Wrong answers are revisited until the rules stick — properly. Complex regulations are broken down into learnable
Competitors
Full chartTop of Paid · Education in France. Master-Nav is #42 there. Changes are over 7 days.
- #1 (number one)Change unknown
AnkiMobile FlashcardsAnki Software, LLC - #2Change unknown
Fiches IDEJulie Violet - #3Change unknown
Wagotabi: Aprender JaponêsWAGOTABI LIMITED - #4Change unknown
le mot Arabeharoun mohamed - #5Change unknown
iDoceo - Planner and gradebookiDoceo Studios Ltd. - #6Change unknown
CosmoNotesFlorence Grullemans - #7New entry
CRR MaritimeCyrille Varin - #8Change unknown
Driving Theory Test 4 in 1 KitDriving Test Success Limited - #9Change unknown
QUARTET Vocab & KanjiHideki Hamada - #10Change unknown
PANTHEON - OfficialD'Uva Workshop s.r.l. - #11Change unknown
Permis C/CE - Examen camionkoehrlen guillaume - #12New entry
Dr. Panda dans l'EspaceDr. Panda Ltd - #13Change unknown
MoyennesED Sans PubsDiego Finocchiaro - #14Change unknown
Corneille ABC sons des lettresCorneille SAS - #15Change unknown
Kid Globe: Space & PlanetsErwin Jubeau - #16Change unknown
Les nombres MontessoriPierre Abel - #17New entry
ShuFee : arabe libanaisMichael Kavalar - #18New entry
GraphoGame: Learn to readGrapho Group Oy - #19New entry
- #20New entry
Un Texte Une FemmeIt's Sauquet.com
Store listing
How the app presents itself on the App Store. Select a screenshot to open it full size.
What's new
Version 1.50 · 15 Jun 2026 · 3 months ago
New improved artwork and content, minor bug fixes.
Current rankings
Every chart this app is in right now, best position first.
| Chart | Rank | 24 h | 7 days | Best | Days on chart |
|---|---|---|---|---|---|
| France· Paid · Education | #42 | Down 25 places | Change unknown | #17 | 3 |
| Australia· Paid · Education | #62 | Down 47 places | Change unknown | #15 | 3 |
Rank history
Higher on the chart is better: #1 is at the top.
Sign in to see 30 days, 90 days and all history.
France · Paid · Education: best #17, latest #42, over 4 snapshots since 8 Oct. No snapshots from 8 Oct to 9 Oct and on 9 Oct; the line joins the snapshots on either side.
Ranking events
Entries, big moves, #1s and new versions we've recorded.
- Dropped #15 → #53 in Paid · EducationAustralia
- Dropped #42 → #89 in Paid · EducationUnited Kingdom
- Dropped #34 → #61 in Paid · EducationCanada
More from Peterjohn Chisholm
Their other apps that Appulse has seen in the charts, charting ones first.
| App | Best rank now | Released | App Store |
|---|---|---|---|
 Master-Nav: IALA MBSEducation | Not charting | 8 months ago |