ACARS vs Westminster ChimeX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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.
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.
- Plays Westminster chimes
- Quarter-hour alerts
- Minimalistic design
- Runs in the background
- Discreet timekeeping
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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
Verdict
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
ACARS costs $2.99 and Westminster ChimeX $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
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.
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.
| Parameter | ACARS | Westminster ChimeX |
|---|---|---|
| Price | $2.99 | $0.99 — better |
| Rating | 3.0 (14 ratings) — better | 1.5 (2 ratings) |
| Positive reviews | 41.4% of reviews — better | 16.7% of reviews |
| Number of ratings | 14 — better | 2 |
| Update frequency | Every 12 months | Every 6 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 6.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 2 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Black Cat Systems | Pariahware, Inc. |
Customer experience
ACARS
Westminster ChimeX
In-app purchases
ACARS
No in-app purchases
Westminster ChimeX
No in-app purchases
Questions
Is ACARS free?
Is Westminster ChimeX free?
Which has better reviews, ACARS or Westminster ChimeX?
Do ACARS or Westminster ChimeX have ads?
Which is updated more often, ACARS or Westminster ChimeX?
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