Comparison

ACARS vs Westminster ChimeX

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

Head to head
About

ACARS

View ACARS aircraft transmissions on your iOS device without a bulky computer. Requires a radio scanner tuned to the aircraft band. Save decodes to a file or transfer to your computer.

Highlights
  • View ACARS transmissions on iOS
  • Save decoded packets to a file
  • Transfer data to computer via iTunes
  • Built-in aircraft model database
  • Add custom plane information
  • Color-coded packet fields
Features
Read full description

Want to display ACARS transmissions, without using a bulky computer? ACARS lets you view ACARS aircraft transmissions on your iPad, iPhone, and iPod Touch. A radio/scanner capable of tuning the 118-136 MHz aircraft band is required. Just set it next to the radio's speaker, tune in an ACARS frequency, and watch the decodes. Or, for even better reception, use a pair of earbuds, plugged into the radio’s headphone jack, rather than the internal speaker. You can save decoded ACARS packets to a file to view later, or transfer to your computer via iTunes. Aircraft model information for many planes in a built in database is displayed along with the decoded packets. You can also add your own plane information to the database. Packet fields are color coded on iOS 6 and later. Buy your copy right now, and start decoding and displaying ACARS transmissions in minutes.

About

Westminster ChimeX

This app plays Westminster chimes every quarter hour with an elegant and minimalistic design. It functions even when not actively running, making it ideal for discreet timekeeping or for users with visual impairments.

Highlights
  • Plays Westminster chimes
  • Quarter-hour alerts
  • Minimalistic design
  • Runs in the background
  • Discreet timekeeping
Features
Read full description

An elegant & minimalistic design, ChimeX allows your devices to play Westminster chimes each quarter hour. Just set it and forget it. Even with the app not running, the chimes will play. Great for knowing the time without looking, or those with visual impairments.

Screenshots

ACARS3 screens
Westminster ChimeX3 screens

Verdict

The call

The clearest difference is rating: ACARS at 3.0 against Westminster ChimeX's 1.5. ACARS also leads on review sentiment (41% vs 17%) and ratings volume (14 vs 2). Westminster ChimeX's advantage is price ($0.99 vs $2.99). On update cadence, 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

ACARS costs $2.99 and Westminster ChimeX $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ACARS holds the better App Store score, 3.0 against 1.5. That said, the two scores are not equally well evidenced: ACARS has 14 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 41% of ACARS's written reviews are positive against 17% of Westminster ChimeX's.

UpkeepUpdate frequency

ACARS ships an update every 12 months, Westminster ChimeX every 6 months. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

Scorecard5 real differences · 5 level
ACARS versus Westminster ChimeX: the parameters behind the verdict, then further details
ParameterACARSWestminster ChimeX
Price$2.99$0.99 — better
Rating3.0 (14 ratings) — better1.5 (2 ratings)
Positive reviews41.4% of reviews — better16.7% of reviews
Number of ratings14 — better2
Update frequencyEvery 12 monthsEvery 6 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS6.0 — better17.0
Further details — not scored
Size2 MB2 MB
Age rating4+4+
DeveloperBlack Cat SystemsPariahware, Inc.

Customer experience

ACARS

All ratings14 ratings
Positive42.9%
Neutral21.4%
Negative35.7%
Written reviews29 reviews
Positive41.4%
Neutral27.6%
Negative31.0%

Westminster ChimeX

All ratings2 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews6 reviews
Positive16.7%
Neutral0.0%
Negative83.3%

In-app purchases

None

ACARS

No in-app purchases

None

Westminster ChimeX

No in-app purchases

Questions

Is ACARS free?
ACARS costs $2.99, with no in-app purchases.
Is Westminster ChimeX free?
Westminster ChimeX costs $0.99, with no in-app purchases.
Which has better reviews, ACARS or Westminster ChimeX?
ACARS is rated higher. ACARS averages 3.0 out of 5 from 14 ratings, while Westminster ChimeX averages 1.5 from 2 ratings.
Do ACARS or Westminster ChimeX have ads?
Neither ACARS nor Westminster ChimeX shows ads.
Which is updated more often, ACARS or Westminster ChimeX?
ACARS ships an update every 12 months, and Westminster ChimeX every 6 months. Most recently, ACARS was updated on October 18, 2026 and Westminster ChimeX on October 15, 2026.

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