Comparison

Lightspeed App vs CX

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

Head to head
About

Lightspeed App

Enhance your flight experience with real-time CO sensor monitoring and personalized audio. Record and archive radio conversations for review and training.

Highlights
  • Real-time CO sensor tracking
  • Smart CO alerts
  • Personalized audio equalization (HearingEQity™)
  • Record radio conversations
  • Archive flight recordings
  • Draw flight diagrams
Features
Read full description

A companion app to the Lightspeed Delta Zulu ANR headset, the Lightspeed app for iOS features an array of integrated features to keep pilots and passengers safer during flight. Track CO Sensors for Safer Flying The Lightspeed app allows pilots to check the CO levels in the aircraft during flight, using a CO sensor built right into the Lightspeed Delta Zulu headset. The sensor provides real-time smart alerts via the proprietary Kanari™ smart alert technology. Historical data can be stored, reviewed, and analyzed after use and during the flight(s). Personalize Audio with HearingEQity™ The Lightspeed app introduces a built-in audio equalization system called HearingEQity™ designed to compensate for individual hearing loss. Through an automated 12-frequency hearing test taken through the app, HearingEQity sets the hearing level in each ear in a variety of frequency bands of the Lightspeed Delta Zulu headset to create an individual hearing profile and compensate for any hearing variations between ears. Record Conversations, Archive Flight Recordings, and More... The Lightspeed App allows pilots to record radio conversations, playback transmissions, draw diagrams, and archive flight recordings for post-flight briefings and training.

About

CX

This aviation tool simplifies flight planning for pilots. It offers accurate calculations for time, speed, distance, fuel, and more, along with unit conversions and a built-in calculator. Designed for ease of use, it guides users through flight planning and execution with a natural menu flow.

Highlights
  • Flight planning calculations
  • Time, speed, distance functions
  • Fuel and altitude calculations
  • Unit conversions (12 categories)
  • Weight and balance calculations
  • Holding pattern details
  • Built-in calculator, clock, timer
Read full description

Based on the ASA CX-3® Flight Computer for pilots, this CX-3 app makes flight planning simple by taking confusion out of the equation. Fast, versatile and easy to use, the CX-3® delivers accurate results quickly and efficiently. Whether used for flight planning, ground school, or FAA Knowledge Exam preparation, the menu organization reflects the order in which a flight is normally planned and executed, resulting in a natural flow from one function to the next with a minimum of keystrokes. Multiple aviation functions can be performed on the CX-3® flight computer including those related to time, speed, distance, heading, wind, fuel, altitude, cloud base, standard atmosphere, glide, climb & descent, weight & balance, as well as a holding pattern function to help determine entry method and holding details. The CX-3® has 12 unit-conversions: Distance, Speed, Duration, Temperature, Pressure, Volume, Rate, Weight, Rate of Climb/Descent, Angle of Climb/Descent, Torque, and Angle. These 12 conversion categories contain 38 different conversion factors for over 100 functions. A calculator, clock, timer, and stopwatch are also built in along with multiple settings for lighting, backlighting, themes, time zones and more.

Screenshots

Lightspeed App4 screens
CX4 screens

Verdict

The call

The clearest difference is price: Lightspeed App at Free against CX's $19.99. Lightspeed App also leads on ratings volume (49 vs 11) and iOS requirement (13.0 vs 17.2). CX's advantage is rating (3.7 vs 3.3) and review sentiment (36% vs 12%). On update cadence, ads, in-app purchases 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

Lightspeed App is free to download; CX costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

CX holds the better App Store score, 3.7 against 3.3. Both are backed by a comparable volume of ratings — 49 and 11 respectively. Written reviews point the same way: 12% of Lightspeed App's written reviews are positive against 36% of CX's.

UpkeepUpdate frequency

Lightspeed App ships an update every 6 months, CX every 8 months. The most recent releases landed on September 7, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level
Lightspeed App versus CX: the parameters behind the verdict, then further details
ParameterLightspeed AppCX
PriceFree — better$19.99
Rating3.3 (49 ratings)3.7 (11 ratings) — better
Positive reviews11.8% of reviews35.7% of reviews — better
Number of ratings49 — better11
Update frequencyEvery 6 months — betterEvery 8 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.2
Further details — not scored
Size71 MB3 MB
Age rating4+4+
DeveloperLightspeed AviationASA

Customer experience

Lightspeed App

All ratings49 ratings
Positive51.0%
Neutral8.2%
Negative40.8%
Written reviews34 reviews
Positive11.8%
Neutral2.9%
Negative85.3%

CX

All ratings11 ratings
Positive63.6%
Neutral9.1%
Negative27.3%
Written reviews14 reviews
Positive35.7%
Neutral7.1%
Negative57.1%

In-app purchases

None

Lightspeed App

No in-app purchases

None

CX

No in-app purchases

Questions

Is Lightspeed App free?
Lightspeed App is free to download, with no in-app purchases.
Is CX free?
CX costs $19.99, with no in-app purchases.
Which has better reviews, Lightspeed App or CX?
CX is rated higher. Lightspeed App averages 3.3 out of 5 from 49 ratings, while CX averages 3.7 from 11 ratings.
Do Lightspeed App or CX have ads?
Neither Lightspeed App nor CX shows ads.
Which is updated more often, Lightspeed App or CX?
Lightspeed App ships an update every 6 months, and CX every 8 months. Most recently, Lightspeed App was updated on September 7, 2026 and CX on September 27, 2026.

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