Comparison

ClockMaster vs Car Bulb Finder

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

Head to head
About

ClockMaster

This app analyzes the ticking sound of mechanical pendulum clocks to determine their running rate and error. It's designed for accurate long-term measurements, allowing users to regulate clocks efficiently. Advanced features include printable reports and data export for in-depth analysis.

Highlights
  • Analyzes escapement ticking sound
  • Measures running rate in Beats Per Hour (B/H)
  • Reports error in Seconds Per Day (±S/D)
  • Supports long-term measurements
  • Generates printable PDF reports (Pro)
  • Exports raw data as .csv file (Pro)
Features
Read full description

>>> Check out the demo videos at ClockMasterApp.com ClockMaster is a clock timing software, in many ways similar to watch timegraphers, but specifically designed to work with mechanical pendulum clocks. The app analyzes the ticking sound of the escapement to determine the clock's running rate measured in Beats Per Hour (B/H). This rate is then compared to a specified Target Rate, and the Error is reported as Seconds Per Day fast or slow (±S/D). The speed of a mechanical pendulum clock is not constant, fluctuating with age and wear, spring tension and even temperature. The ClockMaster app was created with a focus on accurate long-term measurements where traditional timers often do not function very well. For the professional horologist or interested amateur, you can now test in the field — put the clock in exact beat and regulate the clock with just a few hours of testing. For increased rate accuracy and in depth investigation of clock movement's behavior, you can conduct long-term measurements for up to two weeks (ClockMaster Pro). Branded, printable PDF reports can be generated for each measurement, and the raw data exported as .csv file for graphing in a spreadsheet (ClockMaster Pro). ClockMaster Pro (in-app upgrade) provides these additional features: • Save and share branded, printable PDF reports for each measurement • Export raw measurement data as a .csv file for spreadsheet analysis • Conduct long-term measurements of up to two weeks

About

Car Bulb Finder

Read full description

Car Bulb Finder helps you quickly identify the correct light bulbs for your vehicle. Instead of searching through forums or complicated manuals, simply select your car make, model and year and instantly see the compatible bulbs for your vehicle. The app provides clear and structured information for the most common vehicle lighting types, helping drivers replace bulbs faster and avoid purchasing the wrong type. FEATURES • Find headlight bulbs for your vehicle • Check fog light bulb sizes • Identify brake light and tail light bulbs • Find reverse light and turn signal bulbs • Discover interior bulb types • Simple and fast car selection • Clean and lightweight interface • Works instantly without complicated setup WHO THIS APP IS FOR Car owners who want to quickly check which bulbs their vehicle uses. Mechanics and car enthusiasts who regularly replace or upgrade vehicle lighting. Anyone who wants to save time and avoid ordering the wrong bulb. SUPPORTED VEHICLES The database covers a wide range of manufacturers and models. Simply choose your vehicle and the app will display the compatible bulb sizes used in different lighting positions. DISCLAIMER This app provides reference information for vehicle bulb sizes. Always verify compatibility with your vehicle manual or a professional mechanic before purchasing or installing bulbs. Car Bulb Finder is an independent tool and is not affiliated with any vehicle manufacturer.

Screenshots

ClockMaster4 screens

Verdict

The call

The clearest difference is price: Car Bulb Finder at Free against ClockMaster's $49.99. Car Bulb Finder also leads on in-app purchases (none vs 1) and iOS requirement (13.0 vs 18.0).

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

Car Bulb Finder is free to download; ClockMaster costs $49.99 up front. ClockMaster sells 1 one-off in-app purchase. Car Bulb Finder asks for nothing beyond the download.

Scorecard3 real differences · 7 level
ClockMaster versus Car Bulb Finder: the parameters behind the verdict, then further details
ParameterClockMasterCar Bulb Finder
Price$49.99Free — better
Rating3.8 (52 ratings) — better—
Positive reviews58.6% of reviews—
Number of ratings52 — better—
Update frequencyEvery 5 months—
AdsNo—
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone — better—
Requires iOS18.013.0 — better
Further details — not scored
Size5 MB22 MB
Age rating4+4+
DeveloperONYX AppsRoman Chornovol

Bugs and requests

ClockMaster

Reported bugs

6 issues
  • Data lost if app stops unexpectedly
  • iPhone notifications interrupt measurements
  • External mic option not available
  • App freezes after iOS upgrade
  • Screen touch points unresponsive
Show 1 more
  • Help section incomplete

Requested features

13 requests
  • Printable protocol like a timegrapher
  • Beat delta info on regulation screen
  • Option to manually restart measurement and append
  • Undocumented units in spreadsheet export
  • Include actual time in spreadsheet export
Show 8 more
  • Ability to set BPH to 480 for 400-day clocks
  • Plots for drift rate and periodic error within the app
  • Mic that works with the app
  • External mic option
  • More detailed graphs
  • Option to upgrade for $5 instead of $20
  • Better GUI and interface
  • Indication of which half of the cycle is longer/shorter

Car Bulb Finder

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

ClockMaster

One-time1
  • ClockMaster Pro$29.99
None

Car Bulb Finder

No in-app purchases

Questions

Is ClockMaster free?
ClockMaster costs $49.99, and also offers in-app purchases.
Is Car Bulb Finder free?
Car Bulb Finder is free to download, with no in-app purchases.

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