Comparison

SkyLoggerXXL vs igc Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SkyLoggerXXL

Features
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SkyLoggerXXL sets standards for the professional or fun orientated glider, hangglider or paraglider pilot. Based on the success of SkyLogger for the iPhone SkyLoggerXXL is a universal app that has been rewritten and optimized for the iPad and iPhone. It offers the same functionality for tracking flights as SkyLogger but goes with respect to its analysis capabilities and improved user interface far further: - Apple Watch support; - 2D & 3D flight data visualization; - downloadable map data; - large and individually adaptable instruments on a moving map allow best viewing comfort; - north or in flight direction orientation of moving map; - built-in live tracking support for Leonardo or Vgps servers - visualization of previously flown flights as track traces on moving map; - visualization of airspaces with user defined colors; - instrument showing the distance and direction to the closest airspace; - 3 axis acceleration measurements; - tracked flights are stored in highly efficient internal database; - default flight parameters can be stored and retrieved to make flight information entering for competitions easier; - SkyLoggerXXL supports common file formats like IGC, CSV, GPX and KML; - IGC files created by SkyLoggerXXL are OLC conform and can directly be sent to Leonardo, XCCup, XContest and XC globe based OLC servers; - calculation of XC points for FAI triangle, triangle and free distance over 5 points; - XC analysis (determination of FAI triangle areas); - printing of flightbooks, flight information and statistics - all diagrams, maps or charts can either be e-mailed or copied for incorporation into other apps; - integration of SkyView database for exchanging waypoints; - support of external accessories, like FlyNet, SensBox, SkyDrop, Skywatch BL and XC Tracer; - weather data history of selected weather stations for the last 48 hours; - online wind speed and direction visualization on maps for selected weather stations; - visualization of hotspots; - visualization of regions with thermals; - and much much more! Experience the new world of flight tracking and analysis. NOW! Disclaimer: Continued use of GPS running in the background can dramatically decrease battery life.

About

igc Viewer

Easily view flight data from .igc files. Simply open the file through your device's File App or share it directly to the application. It handles various file sizes, displaying your flight information efficiently.

Highlights
  • Open .igc files
  • File App integration
  • Share to app functionality
  • Handles various file sizes
  • Displays flight information
Features
Read full description

How to use. - Open File App. (Alternatively, click the share button and open with 'copy to igc viewer') - Select [.igc] file. - The app will open igc file (it might take a few seconds depending on the file size).

Screenshots

SkyLoggerXXL4 screens
igc Viewer4 screens

Verdict

The call

The clearest difference is price: igc Viewer at Free against SkyLoggerXXL's $23.99. igc Viewer also leads on iOS requirement (16.0 vs 18.6). On update cadence, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

igc Viewer is free to download; SkyLoggerXXL costs $23.99 up front. SkyLoggerXXL sells 8 one-off in-app purchases and igc Viewer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SkyLoggerXXL ships an update every 2 months, igc Viewer every 4 months. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
SkyLoggerXXL versus igc Viewer: the parameters behind the verdict, then further details
ParameterSkyLoggerXXLigc Viewer
Price$23.99Free — better
Rating—4.0 (2 ratings) — better
Positive reviews—50.0% of reviews
Number of ratings—2 — better
Update frequencyEvery 2 months — betterEvery 4 months
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, Apple WatchiPhone, iPad, Apple Watch
Requires iOS18.616.0 — better
Further details — not scored
Size19 MB83 MB
Age rating4+4+
DeveloperHartwig WiesmannHiroki Kijima

In-app purchases

8 purchases

SkyLoggerXXL

One-time8
  • Accelerometer$1.99
  • 2D maps from 3rd parties$3.99
  • 3D maps$3.99
Show 5 more
  • Maps from 3rd parties$4.99
  • FlyNet accessory$9.99
  • SensBox accessory$9.99
  • XC Tracer accessory$9.99
  • SkyDrop accessory$9.99
1 purchases

igc Viewer

One-time1
  • Flight Computer Mode$4.99

Questions

Is SkyLoggerXXL free?
SkyLoggerXXL costs $23.99, and also offers in-app purchases.
Is igc Viewer free?
igc Viewer is free to download, with in-app purchases available.
Do SkyLoggerXXL or igc Viewer have ads?
Neither SkyLoggerXXL nor igc Viewer shows ads.
Which is updated more often, SkyLoggerXXL or igc Viewer?
SkyLoggerXXL ships an update every 2 months, and igc Viewer every 4 months. Most recently, SkyLoggerXXL was updated on October 26, 2026 and igc Viewer on October 25, 2026.

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