Variation is made and published by Navigational Algorithms. AppBrain is an independent app data site and isn't affiliated with Navigational Algorithms. The app name, icon, screenshots and description belong to Navigational Algorithms and are shown as published on Google Play.
AppBrain's verdict
Removed- Rating on Google Play
- 5.00
- 94 ratings
- Installs
- 23 thousand
- Last updated
- December 28, 2024
- Ads
- No ads
- Size
- 2.67 MB
Variation is no longer on Google Play. It was there for 10 years, until January 2025. It had 23 thousand installs. It had too few ratings to say what users thought.
User feedback
Ratings and reviews on Google PlayComments on Variation for Android
Google Play Rating history and histogram
The year before it was removed from Google Play, up to January 2025
Store listing
By Navigational Algorithms, from Google PlaySimilar apps
“Variation for the current day. Used in navigation with a magnetic compass.”
Description by Navigational Algorithms Written by the developer, not by AppBrain. Click to read.
Used in navigation with a magnetic compass.
-
Variation is the angle between the magnetic and geographic meridians at any place, expressed in degrees east or west to indicate the direction of magnetic north from true north. Called MAGNETIC VARIATION when a distinction is needed to prevent possible ambiguity. Also called MAGNETIC DECLINATION. (Bowditch)
The app uses the World Magnetic Model: WMM2025.
The new model is valid from 13/11/2024 to 31/12/2029.
See: https://www.ngdc.noaa.gov/geomag/WMM/DoDWMM.shtml
Your last position is automatically saved.
- Storage permission is needed to save your position.
COURSE CALCULATOR
Compass and true course.
DEVIATION COEFFICIENTS
Dev = A + B SIN(Ra) + C COS(Ra) + D SIN(2Ra) + E COS(2Ra)
Calculate the coefficients A,B,C,D,E with "Magnetic compass" Windows application, (available at Navigational Algorithms website).
Enter them and save. The App will read the data and Course calculator will be able to compute the deviation.
USER INTERACE
- Zoom buttons +/-
- Map types: normal, terrain and satellite
- GPS location. ("Location" App permission must be allowed. Switch on you GPS, and then automatic location detection is possible)
Events on Map:
• Long Click: adds a mark with the variation at position for the current day.
• Tap the Mark to see the information.
• Map gestures: https://developers.google.com/maps/documentation/android-sdk/controls
Recent changes:
Updated to WMM2025
World Magnetic Model 2025 valid from 13/12/2024 to 31/12/2025
Safety and technology
Found in the app by AppBrain- Ads
- No ads
- Price
- Free
- Libraries
- 3
- App size
- 2.67 MB
- Needs Android
- 4.0+
- Content rating
- Everyone
Technologies used by Variation
Releases
Updates seen on Google Play- Version
- 5.0
- Launched
- September 2014
Alternatives
Similar apps and more from Navigational AlgorithmsMore from Navigational Algorithms
Installs
Tracked by AppBrain- Play install range
- 10+ thousand
- Launched
- September 2014
Installs over time
The year before it was removed from Google Play, up to January 2025
Variation was installed 23 thousand times before it was removed.
About the app and developer
About Variation
Variation was a maps & navigation app developed by Navigational Algorithms. It was removed from Google Play Jan 30, 2025.
Install Statistics
Variation had been downloaded 23 thousand times before it became unavailable.
User Ratings
Variation was rated 5.00 out of 5 stars, based on 94 ratings.
App Information
Variation was free. The APK size was 2.67 MB. The last available APK version was 5.0. The last update was on December 28, 2024.
Technical Requirements
Variation required Android 4.0+ or higher. The app had a content rating of Everyone. The app had been available on Google Play since September 2014.
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