FCD vs Sound Meter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FCD
This application calibrates engine gauges for turboprop aircraft using an iPad. It connects via Bluetooth to a specialized adapter plugged into the back of the gauges, allowing full control of calibration parameters and download of flight log data.
- iPad-based calibration
- Bluetooth connectivity
- Control calibration parameters
- Download flight log data
- Supports TR1 engine gauges
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iPad based calibration app for the Electronics International Inc line of Turboprop 2 inch round engine gauges. The FCD-TR1 adapter is a BLE (BlueTooth) device that can be plugged directly into the back of any of the TR1 instruments and then controlled by this app via a BLE (BlueTooth) connection. All calibration parameters of the TR1 are accessible via this app. In addition, recorded flight log data can be downloaded to the iPad.
Sound Meter
Measure and record environmental noise levels in real-time. Tag recordings with GPS, view sound history with min/max/average values, and analyze the sound spectrum. Export data as CSV or audio files, with offline functionality.
- Real-time dB measurement
- GPS tagging for recordings
- Local log management
- Min, max, and average values
- FFT spectrum analysis
- CSV and audio export
- Offline functionality
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Measure environmental noise in real-time, record it with GPS, and manage your sound history. Key Features: • Instant dB measurement with a clean interface • GPS tagging for each record (optional) • Save and manage logs locally • View min, max, and average values • FFT spectrum and real-time graph • Export as CSV or audio file • Works completely offline • No ads in Pro version Perfect for monitoring noise at home, work, or outdoors.
Screenshots
Verdict
The clearest difference is device support: FCD at 3 against Sound Meter's 1. FCD also leads on iOS requirement (14.4 vs 16.6). On price, rating, ratings volume and update cadence 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for FCD against 5.0 for Sound Meter. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
FCD ships an update every 7 months, Sound Meter every 11 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.
| Parameter | FCD | Sound Meter |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (1 ratings) |
| Number of ratings | 1 | 1 |
| Update frequency | Every 7 months — better | Every 11 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 14.4 — better | 16.6 |
| Further details — not scored | ||
| Size | 2 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Ross Morrison | Chang Keun Jung |
In-app purchases
FCD
No in-app purchases
Sound Meter
No in-app purchases
Questions
Is FCD free?
Is Sound Meter free?
Which has better reviews, FCD or Sound Meter?
Do FCD or Sound Meter have ads?
Which is updated more often, FCD or Sound Meter?
Other comparisons
