Comparison

igc Viewer vs Lufty

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

Head to head
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).

About

Lufty

This app provides offline in-flight navigation and planning tools for glider pilots. It offers task planning, numerous navigation instruments, and integration with logging devices and the gliding community. Enjoy a free trial before committing to a subscription.

Highlights
  • Offline maps and airspaces
  • Intuitive task planning
  • 29 navigation instruments
  • WeGlide integration
  • Bluetooth/Wi-Fi LXNAV integration
  • Free 60-day trial
Features
Read full description

Brand new in-flight navigation & planning app for glider pilots Lufty application was designed to help you chase your sporting goals as well as to keep you safe while flying. Lufty's main features: • Designed to work without any connection to the internet (airspaces, maps, terrain elevation model of 88 countries available for download) • Intuitive task planning • Ready for AAT, FAI, Racing tasks as well as just for flying for fun • 29 navigation instruments (everything you would expect from AAT's task Delta time to Final Glide instrument) • WeGlide integration for sharing your flights with the gliding community • Declaration to loggers ••• integrates via Bluetooth with LXNAV devices ••• integrates via Wi-Fi with LX navigation devices ••• more integrations coming very soon Terms of use: https://lufty.app/terms-of-use/ Privacy Policy: https://lufty.app/privacy-policy/ Lufty subscription: First 60 days are free of charge. In order to use Lufty you need to register in the app and select one of our subscription plans. First 60 days are free of charge. If you continue using the app after this period, you will be charged according to selected subscription plan. Payment will be charged to iTunes Account at confirmation of purchase.  Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user’s Account Settings after purchase. Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.

Screenshots

igc Viewer4 screens
Lufty4 screens

Verdict

The call

The clearest difference is review sentiment: igc Viewer at 50% against Lufty's 20%. igc Viewer also leads on rating (4.0 vs 3.7). Lufty's advantage is update cadence (every 3 weeks vs every 4 months). On price, ratings volume, ads and in-app purchases 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

Both are free to download. igc Viewer sells 1 one-off in-app purchase and Lufty sells 2 in-app purchases, starting at $34.99 per 6 months. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

igc Viewer holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 2 and 3 respectively. Written reviews point the same way: 50% of igc Viewer's written reviews are positive against 20% of Lufty's.

UpkeepUpdate frequency

igc Viewer ships an update every 4 months, Lufty every 3 weeks. The most recent releases landed on September 24, 2026 and September 23, 2026 respectively.

Scorecard3 real differences · 7 level
igc Viewer versus Lufty: the parameters behind the verdict, then further details
Parameterigc ViewerLufty
PriceFreeFree
Rating4.0 (2 ratings) — better3.7 (3 ratings)
Positive reviews50.0% of reviews — better20.0% of reviews
Number of ratings23 — better
Update frequencyEvery 4 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS13.113.0 — better
Further details — not scored
Size97 MB83 MB
Age rating4+4+
DeveloperHiroki KijimaLufty.app

Customer experience

igc Viewer

All ratings2 ratings
Positive50.0%
Neutral50.0%
Negative0.0%
Written reviews4 reviews
Positive50.0%
Neutral25.0%
Negative25.0%

Lufty

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews5 reviews
Positive20.0%
Neutral60.0%
Negative20.0%

In-app purchases

1 purchases

igc Viewer

One-time1
  • Flight Computer Mode$4.99
2 purchases

Lufty

Subscriptions2
  • 6-Month Subscription2 Months trial$34.996 Months
  • 12-Month Subscription2 Months trial$49.991 Year

Questions

Is igc Viewer free?
igc Viewer is free to download, with in-app purchases available.
Is Lufty free?
Lufty is free to download, with in-app purchases available.
Which has better reviews, igc Viewer or Lufty?
igc Viewer is rated higher. igc Viewer averages 4.0 out of 5 from 2 ratings, while Lufty averages 3.7 from 3 ratings.
Do igc Viewer or Lufty have ads?
Neither igc Viewer nor Lufty shows ads.
Which is updated more often, igc Viewer or Lufty?
igc Viewer ships an update every 4 months, and Lufty every 3 weeks. Most recently, igc Viewer was updated on September 24, 2026 and Lufty on September 23, 2026.

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