FDS Disp Control vs TM550
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
FDS Disp Control
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Control and manage the settings of your MLED Display via Bluetooth. Designed for MLED-CTRL box as well as old RED and RGB FDS-DISPLAY. Features : - Time of the Day - Fix and Scrolling texts - Stopwatch with Split and Lap times - Countdown - Counter with manual Inc & Dec functions - Manage embedded modes for MLED-CTRL and RGB displays
TM550
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This free Bluetooth (BLE) app will allow you to manually identify the time of competitors measured by the Time Master 550 (TM550). It will allow you to identify competitors directly from your phone, and send the identification to the TAG Heuer Timing Online server. You can print each received or identified time by connecting the app to a Bluetooth printer. Main features : -Work in background or if the screen is off -Connection to a TM550 with Bluetooth (BLE) - Received times of the current run -Connection to a Bluetooth printer - Automatic printing -Received times of the current run -Identified times of the current run -All times of the current run -Connection to the TAG Heuer server -Sent times of the current run (manual / automatic mode) -Sent all times of the current run -Historic of times This app need a TM550 by ITS CHRONO https://www.itschrono.com/fr/appareils-de-chronometrage-professionnel/614-time-master-550.html
Screenshots
Verdict
FDS Disp Control and TM550 are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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.
FDS Disp Control ships an update every 3 months, TM550 every 2 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | FDS Disp Control | TM550 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 12.0 |
| Further details — not scored | ||
| Size | 16 MB | 42 MB |
| Age rating | 4+ | 4+ |
| Developer | FDS-Timing Sarl | ITS-CHRONO |
In-app purchases
FDS Disp Control
No in-app purchases
TM550
No in-app purchases
