Comparison

Sparkys E6B vs Crewz.co

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

Head to head
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.

About

Crewz.co

Find and offer carpool rides with drivers and passengers. This app facilitates social and efficient travel by connecting users for shared journeys.

Highlights
  • Request carpool rides
  • Offer carpool rides
  • Connect with drivers
  • Connect with riders
  • Social travel
  • Efficient trips
Features
Read full description

Connect with drivers and riders for smarter, social carpool trips.

Screenshots

Sparkys E6B4 screens
Crewz.co4 screens

Verdict

The call

The clearest difference is update cadence: Crewz.co at every 3 months against Sparkys E6B's every 57 months. Crewz.co also leads on review sentiment (100% vs 75%) and iOS requirement (15.0 vs 17.0). Sparkys E6B's advantage is rating (4.7 vs 4.5) and ratings volume (15 vs 2). On price, ads, in-app purchases and monetization model 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sparkys E6B holds the better App Store score, 4.7 against 4.5. That said, the two scores are not equally well evidenced: Sparkys E6B has 15 ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 75% of Sparkys E6B's written reviews are positive against 100% of Crewz.co's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Sparkys E6B ships an update every 57 months, Crewz.co every 3 months. The most recent releases landed on November 6, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Sparkys E6B versus Crewz.co: the parameters behind the verdict, then further details
ParameterSparkys E6BCrewz.co
PriceFreeFree
Rating4.7 (15 ratings) — better4.5 (2 ratings)
Positive reviews75.0% of reviews100.0% of reviews — better
Number of ratings15 — better2
Update frequencyEvery 57 monthsEvery 3 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size7 MB6 MB
Age rating4+4+
DeveloperIntineo LLCCrewz, Inc.

Customer experience

Sparkys E6B

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

Crewz.co

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Sparkys E6B

No in-app purchases

None

Crewz.co

No in-app purchases

Questions

Is Sparkys E6B free?
Sparkys E6B is free to download, with no in-app purchases.
Is Crewz.co free?
Crewz.co is free to download, with no in-app purchases.
Which has better reviews, Sparkys E6B or Crewz.co?
Sparkys E6B is rated higher. Sparkys E6B averages 4.7 out of 5 from 15 ratings, while Crewz.co averages 4.5 from 2 ratings.
Do Sparkys E6B or Crewz.co have ads?
Neither Sparkys E6B nor Crewz.co shows ads.
Which is updated more often, Sparkys E6B or Crewz.co?
Sparkys E6B ships an update every 57 months, and Crewz.co every 3 months. Most recently, Sparkys E6B was updated on November 6, 2026 and Crewz.co on October 30, 2026.

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