Comparison

Textron Aviation Cesnav vs Product Support

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

Head to head
About

Textron Aviation Cesnav

This app integrates three specialized calculators for aviation professionals. It helps determine aircraft weight and balance, calculate takeoff and landing performance, and plan flight routes with fuel and time estimations. Results can be exported for onboard use.

Highlights
  • Aircraft-specific weight and balance calculation
  • Takeoff and landing performance analysis
  • Route planning with fuel and time estimation
  • Optimization based on cost and fuel
  • Exportable PDF reports
  • Support for various Citation models
Features
Read full description

Cesnav combines three calculators (Previously known as CLCalc, CPCalc, and EOM) into one app, offering a unified experience from sharing calculations across the calculators to a combined results screen. • The Loading calculator uses an aircraft-specific weight and balance file and allows you to quickly determine your takeoff and landing weight and CG after entering your passengers, cargo and fuel load. • The Takeoff and Landing calculator is an excellent tool for determining engine-out performance in areas where obstacles or terrain clearance is a factor. It is easier, faster, often provides better field performance and higher takeoff weights than the AFM data. • The Planning calculator uses a worldwide airport and navaid database to plan a route calculating trip time, fuel and distance. Many models also feature Cessna’s exclusive GreenTrak technology which will optimize your flight based on DOC and fuel costs, resulting in the minimum total cost. • You can export, print and email PDFs of passenger manifests, loading sheets, performance, and planning results to take on-board. Cesnav is available for all current production Citations and the following models: CitationJet, Latitude, Longitude, CJ1, CJ1+, CJ2, CJ2+, CJ3, Bravo, Encore, Encore+, Excel, XLS, Sovereign, and X. The Loading calculator can also be used with any 550, 560, S550, 208B, or 208 aircraft (208 with TKS currently not supported). New aircraft deliveries include a subscription for the warranty period of the aircraft at no additional charge. App requires a subscription

About

Product Support

This application provides owners and operators of specific engines with access to essential information and services. It includes features like locating authorized service centers, scheduling maintenance, and accessing instructional videos.

Highlights
  • Authorized Service Center Locator
  • Schedule Maintenance
  • Request Inspection Kits
  • Instructional Video Library
  • Contact Information
  • Product Support Portal Access
Read full description

Williams International – Product Support App The Product Support App helps owners and operators of Williams International engines navigate to useful information. Current features Include: • Authorized Service Center Locator • Schedule maintenance with our repair station • Request routine periodic inspection kits • Instructional video library • Williams International contact information • Quick navigation to our Product Support Portal • And much more!

Screenshots

Product Support4 screens

Verdict

The call

The clearest difference is monetization model: Product Support at free against Textron Aviation Cesnav's subscription. Product Support also leads on device support (3 vs 1) and iOS requirement (8.0 vs 13.0). Textron Aviation Cesnav's advantage is update cadence (every 4 months vs every 7 months). On price, rating, ratings volume and ads 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

On the App Store both sit at effectively the same score — 5.0 for Textron Aviation Cesnav against 5.0 for Product Support. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

UpkeepUpdate frequency

Textron Aviation Cesnav ships an update every 4 months, Product Support every 7 months. The most recent releases landed on July 24, 2026 and June 1, 2026 respectively.

Scorecard4 real differences · 6 level
Textron Aviation Cesnav versus Product Support: the parameters behind the verdict, then further details
ParameterTextron Aviation CesnavProduct Support
PriceFreeFree
Rating5.0 (3 ratings)5.0 (2 ratings)
Positive reviews42.9% of reviews—
Number of ratings3 — better2
Update frequencyEvery 4 months — betterEvery 7 months
AdsNoNo
In-app purchasesNoNo
MonetizationSubscriptionFree — better
DevicesiPadiPhone, iPad, iPod — better
Requires iOS13.08.0 — better
Further details — not scored
Size117 MB164 MB
Age rating4+4+
DeveloperTextron Inc.Williams International Co., LLC

Customer experience

Textron Aviation Cesnav

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive42.9%
Neutral14.3%
Negative42.9%

Product Support

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Textron Aviation Cesnav

No in-app purchases

None

Product Support

No in-app purchases

Questions

Is Textron Aviation Cesnav free?
Textron Aviation Cesnav is free to download, with no in-app purchases.
Is Product Support free?
Product Support is free to download, with no in-app purchases.
Which has better reviews, Textron Aviation Cesnav or Product Support?
Textron Aviation Cesnav and Product Support are both rated 5.0 out of 5 on the App Store, from 3 and 2 ratings respectively.
Do Textron Aviation Cesnav or Product Support have ads?
Neither Textron Aviation Cesnav nor Product Support shows ads.
Which is updated more often, Textron Aviation Cesnav or Product Support?
Textron Aviation Cesnav ships an update every 4 months, and Product Support every 7 months. Most recently, Textron Aviation Cesnav was updated on July 24, 2026 and Product Support on June 1, 2026.

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