Comparison

SkyDemon vs Sparkys E6B

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

Head to head
About

SkyDemon

Plan and navigate VFR flights across Europe with detailed aeronautical charts, dynamic airspace clipping, and real-time hazard warnings. Features include virtual radar, automated weather briefings, and comprehensive flight logging for pilots.

Highlights
  • Vector aeronautical charts with dynamic airspace clipping
  • Intuitive route planning and modification
  • Virtual Radar for hazard and airspace visualization
  • Automated weather briefings (TAF, METAR, SIGMET)
  • Real-time hazard and airspace warnings
  • Georeferenced airfield plates and documents
  • Fuel, weight, and balance calculations
Features
Read full description

SkyDemon is Europe's favourite software for VFR flight planning and in-flight navigation. Use this app to access your SkyDemon subscription on your iOS device, unlocking SkyDemon's powerful features while on the move. FLIGHT PLANNING FEATURES - SkyDemon vector charts are the clearest aeronautical charts you'll ever use, with dynamic airspace clipping and choice of map layers - Route planning is as simple as touching consecutive waypoints and dragging to make changes - Virtual Radar shows how your route relates to airspace, terrain, obstructions and other features - Pilot Log facility calculates headings and groundspeeds from actual wind data, and shows useful frequencies - Plates and other documents for relevant airfields are displayed automatically as you plan, and many are available georeferenced for use in flight - Intuitive pan, pinch and rotate support with no loss of map clarity or text legibility - File a VFR flightplan for your route directly to air traffic controllers - Automatic TAF, METAR and SIGMET briefing as you plan a route, with graphical decoding - Rainfall data can be overlaid on the main map, with animation, showing the trend of rainfall over time - Integration of GAFOR route forecasts for Switzerland, Austria, Slovenia and Croatia - Both narrow-route and area NOTAM briefings available, updated as you plan - Advanced NOTAM graphical interpretation and depiction on the main map - Easily print your PLOG and the output from various briefings - Warnings for airspace and other potential hazards to your flight, updated in real time - Airfield Admin Information shows useful contacts and other details for airfields featured in our charts - Forecast winds aloft are automatically retrieved for the flight time and displayed on the map - Create an advanced flight performance profile for each aircraft you use - ATS Routes mode offers an alternative chart presentation for flight along airways - Accurate fuel, weight and balance calculations including flight costings - Create an unlimited number of user-defined waypoints - Analyse your track logs for posterity - Choose between six different vector chart styles - Extensive European chart coverage as standard GPS NAVIGATION FEATURES - Intelligent warnings for approaching airspace, NOTAM, obstacles, terrain and other hazards - Virtual Radar shows a side-on projection of all approaching features and how your trajectory relates to them - Vector map automatically follows the aircraft in north up, track up or course up orientation - Clear and concise instruments show you flight statistics and help keep you on track - An HSI/ILS instrument helps you keep to your planned route and line up early for approach - Live Pilot Log shows progress through your route, ETAs, ATAs and useful frequencies based on your current position - TerrainSafe dynamically colours mountainous terrain around you to quickly identify safer areas - Direct To allows easy re-routing in a hurry by picking from a selection of nearby airfields - Approach Information shows runway diagrams, TAF, METAR, NOTAM and other airfield details useful for making an approach - Live updates of TAF and METAR while in flight, with associated alerts* - Extended runway centrelines appear automatically on the map as you near your destination airfield - Permanent display of position relative to nearest well-known waypoint, for position reporting - Easy changing of the planned route while in flight by touching and dragging Continued use of GPS running in the background can dramatically decrease battery life. * Internet connection required for live weather update while in flight

About

Sparkys E6B

This app emulates a mechanical E6B flight computer, offering digital readouts for precise calculations. It combines the speed and intuitiveness of analog input with the accuracy of digital output for various aviation computations.

Highlights
  • Digital readouts for calculations
  • Analog input with cursors and steppers
  • Multiplication and division
  • Rate problems (fuel, time, speed)
  • Wind correction angle calculations
  • Conversions (miles, fuel, weight)
Features
Read full description

Sparky's E6B emulates a mechanical E6B Flight Computer, with significant additional capabilities. The app provides digital readouts of values that would otherwise have to be eyeballed in a standard E6B. The use of cursors and steppers enables the precision of a digital computer with the speed and intuitiveness of an analog computer. The E6B is an analog computer invented in the 1930's by Lt. Philip Dalton, USN for purposes of training and flight calculations. The app can be used to perform calculations, or to practice and learn how to use a mechanical E6B. Advantages of analog slide-rule E6Bs include the speed of entering data, and continous operation that can enable a more intuitive feel for how outputs change as inputs are changed. If inputs are changed, it is simply a matter of a swipe or using a stepper to fine tune inputs, and outputs are updated simultaneously. Advantages of digital E6B's includes precision, but as E6Bs are in reality often used to estimate data, this precision often cannot be taken advantage of. Furthermore, entering data is slowed down by soft keypads popping up and down. It may be hard to understand how outputs change in response to inputs if individual numbers need to be entered on a keypad. Sparky's E6B provides the best of both worlds. The speed and intuitive entry of an analog E6B, along with the digital readout of a digital E6B. The "slide rule" or "front" side includes a circular log-log scale that can be used for multiplication, division, fuel consumption and time/speed/distance calculations. There are also various conversions available, such as nautical-miles/statute-miles/kilometers, fuel and oil volume and weight. The windows on the front are used for airspeed, various forms of "altitude' and mach number calculations. Digital output is provided for - Multiplication and division - Ascent and descent vertical and horizontal speed and angles - Rate problems such as gallons per hour, time to destination etc. - Density Altitude and True Airspeed calculations. - True Altitude Calculations - Mach speeds vs. temperature - Conversions of Nautical and Statue Miles to and from Kilometers - Volume of oil and fuel vs. weight - Conversion of Pounds to Kilograms - Conversion of Feet to Meters The "wind" side is a vector computer used to determine flight headings, wind correction angle etc. It also provides digital readouts to provide an intuitive feel for wind correction, as well as to let the inputs be fine-tuned or updated as conditions change. We have no ads and collect no personal information. We hope you enjoy Sparky's E6B and find it useful.

Screenshots

SkyDemon4 screens
Sparkys E6B4 screens

Verdict

The call

The clearest difference is in-app purchases: Sparkys E6B at none against SkyDemon's 1. SkyDemon's advantage is update cadence (monthly vs every 57 months) and ratings volume (548 vs 15). On price, rating, 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. SkyDemon sells 1 one-off in-app purchase. Sparkys E6B asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for SkyDemon against 4.7 for Sparkys E6B. That said, the two scores are not equally well evidenced: SkyDemon has 548 ratings behind it against 15, so its average is the more settled of the two. Written reviews are what separate them: 92% of SkyDemon's written reviews are positive against 75% of Sparkys E6B's.

UpkeepUpdate frequency

SkyDemon ships an update monthly, Sparkys E6B every 57 months. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard6 real differences · 4 level
SkyDemon versus Sparkys E6B: the parameters behind the verdict, then further details
ParameterSkyDemonSparkys E6B
PriceFreeFree
Rating4.8 (548 ratings) — better4.7 (15 ratings)
Positive reviews92.3% of reviews — better75.0% of reviews
Number of ratings548 — better15
Update frequencyMonthly — betterEvery 57 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size53 MB7 MB
Age rating4+4+
DeveloperDivelements LimitedIntineo LLC

Customer experience

SkyDemon

All ratings549 ratings
Positive95.1%
Neutral2.9%
Negative2.0%
Written reviews155 reviews
Positive92.3%
Neutral3.2%
Negative4.5%

Sparkys E6B

All ratings15 ratings
Positive93.3%
Neutral0.0%
Negative6.7%
Written reviews8 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

Bugs and requests

SkyDemon

Reported bugs

2 issues
  • Incompatible with latest iPad OS
  • Crashes when trying to download all charts

Requested features

6 requests
  • Print PLOG or route on iPad
  • Improved logbook functionality
  • Support for official CAA/NATS charts
  • Synthetic vision
  • IFR flight plan filing to Eurocontrol
Show 1 more
  • Integration with Jeppesen IFR charts

Sparkys E6B

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

SkyDemon

One-time1
  • SkyDemon iOS Subscription$199.99
None

Sparkys E6B

No in-app purchases

Questions

Is SkyDemon free?
SkyDemon is free to download, with in-app purchases available.
Is Sparkys E6B free?
Sparkys E6B is free to download, with no in-app purchases.
Which has better reviews, SkyDemon or Sparkys E6B?
SkyDemon is rated higher. SkyDemon averages 4.8 out of 5 from 548 ratings, while Sparkys E6B averages 4.7 from 15 ratings.
Do SkyDemon or Sparkys E6B have ads?
Neither SkyDemon nor Sparkys E6B shows ads.
Which is updated more often, SkyDemon or Sparkys E6B?
SkyDemon ships an update monthly, and Sparkys E6B every 57 months. Most recently, SkyDemon was updated on October 30, 2026 and Sparkys E6B on October 29, 2026.

Other comparisons