RACING B55 vs iHorology
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
RACING B55
This app enhances a connected chronograph's functionality by allowing users to adjust settings, store and analyze time series data, and configure race functions. It provides a seamless link between the watch and smartphone for improved performance tracking and data management.
- Adjust chronograph settings remotely
- Store and compare time series data
- Configure race and rally functions
- Measure average speed with tachymeter
- Receive smartphone notifications on watch
- Personalize display settings
- Update watch software
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For the first time in the history of Breitling for Bentley, Breitling has equipped a chronograph designed for the British manufacturer with an electronic movement, and not just any one: a version of its connected “in-house” B55 calibre enhanced with functions specifically tailored to the automobile world. The entirely autonomous Bentley Supersports B55 was designed as a chronograph in its own right, with the smartphone connection serving to improve the functionality and store or transmit data. Thanks to two-way communication, the two instruments form a perfectly complementary pair within which each one is used to do what it does best. The B55 RACING app enables the user to verify and adjust at a glance the main settings of the Bentley Supersports B55 chronograph, as well as swiftly access its different functions. The smartphone’s memory enables the different chronograph measurements to be stored so that they can be seen, compared or even transferred to other apps. The smartphone’s screen offers unparalleled reading comfort, thus bringing a new dimension to stored data. • Check the state of your chronograph at a glance and adjust your settings (UTC time, timezones, date, 7 alarms, synchronization of the hands). • Store different time series (Lap Timer/Chrono Add) to compare them on your smartphone. View your different times and export them easily. Use the watch’s tachymeter to measure your average speed. • Configure the different chronograph functions such as Timer, Chrono Rally, Chrono Race or Regularity Rally. • Access race times (Chrono Rally, Chrono Race or Regularity Rally), view relevant information at a glance and save it for further consultation. • Export your recorded times to another app or your personal computer. • Configure your watch to receive notifications from your smartphone; the watch can vibrate and/or ring when receiving a call, message, e-mail or diary alert. • Personalise the display on the watch and the app according to your profile (Sport/Racing). • Update your watch’s software directly from the app.
iHorology
This app simulates the functions of a mechanical watch on your phone or tablet. It offers a wide range of features found in real-world timepieces, including chronographs, calendars, and chiming functions. Experience the complexity of mechanical watches with customizable options.
- Chronograph functions (split, flyback, monopusher)
- Perpetual and annual calendars
- Minute repeaters and chiming features
- Customizable bezel options
- GMT, alarm, and moonphase complications
- Power reserve simulation
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iHorology is the world’s first (and best) mechanical watch for your phone / tablet. Experience all the functions of mechanical watches. Features include ► Chronographs - split, flyback, monopusher etc ► Perpetual / annual calendars ► Minute repeaters ► Bezel options - dive, tachymeter etc ► GMT, alarm, moonphase etc ► Custom beats, hacking, deadbeat seconds etc ► Power reserve - manual / unlimited ► Chiming features - minutes repeater, decimal minute repeater, striking time etc ► Analog alarm ► Choice of inaccuracy, with type of tourbillon etc Designed to be used as an actual mechanical watch on your phone.
Screenshots
Verdict
The clearest difference is review sentiment: iHorology at 50% against RACING B55's 0%. iHorology also leads on rating (4.3 vs 3.0) and update cadence (every 2 months vs every 12 months). RACING B55's advantage is iOS requirement (9.0 vs 12.0). On price, ratings volume, ads and in-app purchases 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.
iHorology holds the better App Store score, 4.3 against 3.0. Both are backed by a comparable volume of ratings — 2 and 4 respectively. Written reviews point the same way: 0% of RACING B55's written reviews are positive against 50% of iHorology's.
RACING B55 ships an update every 12 months, iHorology every 2 months. The most recent releases landed on September 10, 2026 and July 8, 2026 respectively.
| Parameter | RACING B55 | iHorology |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (2 ratings) | 4.3 (4 ratings) — better |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 2 | 4 — better |
| Update frequency | Every 12 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 9.0 — better | 12.0 |
| Further details — not scored | ||
| Size | 17 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Breitling SA | Kaizen Writer |
Customer experience
RACING B55
iHorology
In-app purchases
RACING B55
No in-app purchases
iHorology
No in-app purchases









