Comparison

Bad Elf Wombat vs ACN/PCN Calculator

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

Head to head
About

Bad Elf Wombat

This free utility app works with the Bad Elf Wombat hardware accessory. It enables pilots to download aviation databases and transfer them to a USB drive or SD card. It also facilitates the collection and uploading of flight and engine logs to various aviation analysis sites.

Highlights
  • Download aviation databases
  • Transfer data to USB/SD via Wombat accessory
  • Collect flight and engine logs
  • Upload logs to analysis sites
  • Check hardware health
  • Perform firmware updates
  • Format media
Read full description

This free utility app is used in conjunction with the Bad Elf Wombat hardware accessory. This app allows pilots and operators to download aviation databases from compatible avionics websites to their iPad or iPhone via Wi-Fi or cellular. Once downloaded, the user can then connect to the Bad Elf Wombat accessory via Wi-Fi to transfer the database(s) to a USB drive or SD card. Pilots can also collect flight and engine logs from compatible avionics, and upload them to sites such as SavvyAnalysis, CirrusReports, and myTBM.aero. Logs can also be shared with 3rd party apps such as CloudAhoy, Dropbox, or the Mail app. This app also allows the user to check the health of their Wombat hardware, perform firmware updates, and format USB/SD media. Visit www.bad-elf.com/wombat to learn more about the Bad Elf Wombat accessory.

About

ACN/PCN Calculator

This app calculates aircraft pavement classification numbers (PCN) and aircraft classification numbers (ACN) to assess airport pavement strength. It helps pilots and aviation professionals ensure safe operations by verifying aircraft weight limitations on runways, taxiways, and aprons.

Highlights
  • ACN/PCN calculation
  • Pavement strength evaluation
  • Aircraft weight verification
  • ICAO ACN/PCN method
  • Comprehensive aircraft database
  • User-friendly interface
Features
Read full description

ACN/PCN Calculator The Ultimate Pavement Strength Tool for Aviation Professionals The ACN/PCN Calculator is your go-to app for evaluating the bearing strength of airport pavements, designed specifically for pilots, flight operations engineers, dispatchers, and airport operators. Whether you’re dealing with flexible or rigid pavements, this app ensures precise calculations to verify safe operations on runways, taxiways, and aprons. By leveraging the ICAO ACN/PCN method, as outlined in Annex 14 and Document 9157 Part 3, the calculator simplifies complex computations, helping you determine the maximum allowable aircraft weight with confidence. Why Choose the ACN/PCN Calculator? • Comprehensive Aircraft Database: Data is sourced from manufacturers’ publications, including the Aircraft Characteristics for Airport Planning (ACAP) manuals. Where necessary, ICAO-recommended methods or alternative sources ensure accuracy. • User-Friendly Design: Optimized for iPhone 8+ screens and fully compatible with iPads, the interface is intuitive and easy to navigate. Supported Aircraft Models Our extensive database includes popular aircraft from leading manufacturers: A300BeK/B4/B4-600R, A319, A320, A321, A330 (all variants), A340 (all variants), A350 (all variants), A380. B727-200, B737 (all variants), B747-400 (all variants), B747-8/F, B757-200/300, B767 (all variants), B777 (including ER/LR/F variants), B787 (all variants). DHC-8-Q400, Global Express/XRS, G5000, G6000, G7500, CRJ series (100-1000), LearJet (31A/ER, 40, 45, 60/XR), Challenger (300, 350, 604, 605). Cessna Citation II, Bravo, S/II, Encore/Encore+, Jet 3/4, Latitude, Sovereign/Sovereign+, Citation X/XLS+. E170, E195, EMB-120/135, Praetor 600, Phenom 300. G650/ER, G600, G550, G500, G450, G400, G280, G200, GVII-G500/600. An-12, An-124-100/M. ATR 42, ATR 72. Convair CV-580/5800. Falcon: 7X, 50/50EX, 900 (all versions), 2000/2000EX. IL-76T/TD. Beechjet 400 series, Hawker 400XP. Request Additional Aircraft: if you don’t see your aircraft listed, use the Feedback button in the Info tab to request additions.  Aircraft data is regularly updated to meet user needs.

Screenshots

Bad Elf Wombat3 screens
ACN/PCN Calculator4 screens

Verdict

The call

The clearest difference is in-app purchases: Bad Elf Wombat at none against ACN/PCN Calculator's 10. Bad Elf Wombat also leads on rating (5.0 vs 4.6) and update cadence (every 4 weeks vs every 2 months). ACN/PCN Calculator's advantage is ratings volume (144 vs 8). On price, ads 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

Both are free to download. ACN/PCN Calculator sells 10 one-off in-app purchases. Bad Elf Wombat asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Bad Elf Wombat holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ACN/PCN Calculator has 144 ratings behind it against 8, so its average is the more settled of the two.

UpkeepUpdate frequency

Bad Elf Wombat ships an update every 4 weeks, ACN/PCN Calculator every 2 months. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 4 level
Bad Elf Wombat versus ACN/PCN Calculator: the parameters behind the verdict, then further details
ParameterBad Elf WombatACN/PCN Calculator
PriceFreeFree
Rating5.0 (8 ratings) — better4.6 (144 ratings)
Positive reviews—45.5% of reviews
Number of ratings8144 — better
Update frequencyEvery 4 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS9.0 — better17.6
Further details — not scored
Size51 MB4 MB
Age rating4+4+
DeveloperBad Elf, LLC.AeroKitPro LLC

Customer experience

Bad Elf Wombat

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

ACN/PCN Calculator

All ratings142 ratings
Positive90.1%
Neutral1.4%
Negative8.5%
Written reviews22 reviews
Positive45.5%
Neutral9.1%
Negative45.5%

In-app purchases

None

Bad Elf Wombat

No in-app purchases

10 purchases

ACN/PCN Calculator

One-time10
  • G600 (41.7t)Free
  • G650 (45.3t)$4.99
  • Global 5000 GVFD (42.0t)$4.99
Show 7 more
  • Global 6000 (45.2t)$4.99
  • G650ER (47.1t)$4.99
  • G550 (41.4t)$4.99
  • G450 (33.7t)$4.99
  • G280 (18.0t)$4.99
  • Global 7500 (52.2t)$4.99
  • FALCON 7X (31.8t)$4.99

Questions

Is Bad Elf Wombat free?
Bad Elf Wombat is free to download, with no in-app purchases.
Is ACN/PCN Calculator free?
ACN/PCN Calculator is free to download, with in-app purchases available.
Which has better reviews, Bad Elf Wombat or ACN/PCN Calculator?
Bad Elf Wombat is rated higher. Bad Elf Wombat averages 5.0 out of 5 from 8 ratings, while ACN/PCN Calculator averages 4.6 from 144 ratings.
Do Bad Elf Wombat or ACN/PCN Calculator have ads?
Neither Bad Elf Wombat nor ACN/PCN Calculator shows ads.
Which is updated more often, Bad Elf Wombat or ACN/PCN Calculator?
Bad Elf Wombat ships an update every 4 weeks, and ACN/PCN Calculator every 2 months. Most recently, Bad Elf Wombat was updated on November 2, 2026 and ACN/PCN Calculator on November 6, 2026.

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