Comparison

A vs iEFIS Pro

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

Head to head
About

A

This electronic flight information system runs on your iPhone or iPad, providing pilots with essential flight data like artificial horizon, GPS-based speed, altitude, and more. It's designed for use in airplanes only and is not a certified aviation instrument.

Highlights
  • Artificial Horizon (AHRS)
  • GPS Ground Speed
  • GPS Altimeter
  • GPS Vertical Speed
  • Turn Coordinator
  • Slip Ball
  • Compass
Features
Read full description

A-EFIS is an Electronic Flight Information System for airplanes, which runs right on your iPhone/iPad. A-EFIS works perfectly with the internal sensors of your iPhone/iPad A-EFIS makes use of digital filtering methods and state-of-the-art stochastic models in order to achieve exceptional accuracy and robustness. ATTENTION: A-EFIS ONLY WORKS ON AIRPLANES. NOT TO BE USED IN HELICOPTERS OR LAND VEHICLES BECAUSE INDICATIONS WILL NOT BE CORRECT. USE ONLY IN AN AIRPLANE! Features: - Artificial Horizon (AHRS) - Ground speed (via GPS) - Altimeter (via GPS) - Vertical speed (via GPS) - Turn coordinator - Slip ball - Compass - True course indicator (via GPS) - Deviation from true track indication A-EFIS can also be used with the X-Plane flight simulator. A-EFIS has been extensively tested on ultralights, LSA, general aviation and even airliners. IMPORTANT NOTICE: A-EFIS is not a certified aviation instrument. Do not rely on A-EFIS as your only navigation aid. Failure to comply to this warning may result in property damage, serious injury or death. You assume total responsibility and risk associated with using this application.

About

iEFIS Pro

This app simulates a modern glass cockpit for general aviation, displaying flight data from your device's sensors or external GPS. The Pro version offers an airport database with navigation aids.

Highlights
  • iOS sensor data display
  • External GPS connection
  • Course rose and track display
  • Airport database (Pro version)
  • Runway orientation and length
  • Full-screen mode
Features
Read full description

i-EFIS simulates a modern glass cockpit for general aviation and provides the following features: 1. Display iOS iPhone and iPad sensor data: The attitude indicator is driven by the 3D MEMS chip, speed and altitude come from the internal or external GPS (only iOS devices with cellular connection have the integrated GPS!) 2. Or connect the iPhone to a iLEVIL „SW“, „AW“ or „Sport“ device (available at the LEVIL company or in many pilot shops) by WIFI device to get precise attitude and GPS data. 3. A 80 or 360 degree course rose (change with tap on airplane symbol) 4. Magnetic and True GPS track (display in white with with track line) 5. Magnetic or True Heading, heading data is provided by internal compass and is not always reliable. 6. iEFIS Pro version (simple upgrade via inapp purchase!) displays a worldwide airport database and always shows the bearing to the nearest airport from your position with distance, elevation and runway orientation of the main runway of that airport. How to use i-EFIS 1. Tap the speed window to toggle speed units: km/h - mph - knots. Speed displayed is a GPS ground speed 2. Tap on the altitude window to switch from feet MSL to Meters MSL 3. Tap the course window to select the course mode: Magnetic Heading - True Heading - Magnetic Track - True Track. All GPS track modes are displayed in white, heading modes are yellow 4. Tap the airplane symbol to display either the full 360 degree course rose or a 80 degree segment Pro version features 1. Tap on Runway orientation info to see runway length 2. Tap course window and slide up to hide attitude indicator and to switch to full screen mode 3. To calibrate magnetic heading tap course window to show "HDG" (Magnetic Heading), and slide finger left or right to set correct heading. Use airplane's compass as reference 4. To select a different airport than the nearest one simply tap on the airport symbol and the app will display the data for this airport 5. To go back to the nearest airport simply tap the empty space between the airports Airport database in Pro version: 1. Switch Airport database on or off in settings. 2. Use the two finger pinch gesture to zoom airport map in/out More cool Features coming! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

A4 screens
iEFIS Pro4 screens

Verdict

The call

The clearest difference is review sentiment: iEFIS Pro at 100% against A's 0%. iEFIS Pro also leads on price (Free vs $54.99) and rating (5.0 vs 3.7). A's advantage is in-app purchases (none vs 1) and iOS requirement (14.0 vs 16.6). On ratings volume, 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

iEFIS Pro is free to download; A costs $54.99 up front. iEFIS Pro sells 1 in-app purchase, starting at $2.99 per month. A asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iEFIS Pro holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 0% of A's written reviews are positive against 100% of iEFIS Pro's.

UpkeepUpdate frequency

A ships an update every 2 months, iEFIS Pro every 3 weeks. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.

Scorecard7 real differences · 3 level
A versus iEFIS Pro: the parameters behind the verdict, then further details
ParameterAiEFIS Pro
Price$54.99Free — better
Rating3.7 (3 ratings)5.0 (3 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings33
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS14.0 — better16.6
Further details — not scored
Size12 MB82 MB
Age rating4+4+
DeveloperCharalampos BaltzakisairWORK aviation media UG

Customer experience

A

All ratings3 ratings
Positive33.3%
Neutral66.7%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

iEFIS Pro

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

A

No in-app purchases

1 purchases

iEFIS Pro

Subscriptions1
  • Maps + Weather Subscription1 Month trial$2.991 Month

Questions

Is A free?
A costs $54.99, with no in-app purchases.
Is iEFIS Pro free?
iEFIS Pro is free to download, with in-app purchases available.
Which has better reviews, A or iEFIS Pro?
iEFIS Pro is rated higher. A averages 3.7 out of 5 from 3 ratings, while iEFIS Pro averages 5.0 from 3 ratings.
Do A or iEFIS Pro have ads?
Neither A nor iEFIS Pro shows ads.
Which is updated more often, A or iEFIS Pro?
A ships an update every 2 months, and iEFIS Pro every 3 weeks. Most recently, A was updated on September 21, 2026 and iEFIS Pro on September 20, 2026.

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