Comparison

ClockMaster vs Control Freak Pool

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

Control Freak Pool

Effortlessly manage your smart pool equipment, including pumps, lights, and heaters, directly from your iPhone. This app offers an intuitive interface for homeowners and pool professionals to simplify pool maintenance and achieve optimal settings with ease.

Highlights
  • Remote control of pumps, lights, and heaters
  • Intuitive and simple user interface
  • Easy setup over home WiFi
  • No cloud accounts required
  • Designed for homeowners and pool professionals
Features
Read full description

Take full control of your pool from the palm of your hand. Control Freak connects to your smart pool equipment including pumps, lights, heaters, and more so you can manage everything effortlessly from your iPhone. Whether you're a homeowner wanting a perfectly set pool without the hassle, or a pool professional looking for a smarter way to work, Control Freak makes it simple. Get up and running in minutes with an intuitive setup that just works. EASY CONTROL Adjust your pump speed, toggle lights, and set your heater. All from one clean, simple interface. WORKS FOR EVERYONE Designed for both pool owners and service pros who want less complexity, not more. SIMPLE SETUP Connect to your pool equipment over your home WiFi and you're ready to go. No complicated configuration, no cloud accounts required.

Screenshots

ClockMaster4 screens
Control Freak Pool4 screens

Verdict

The call

The clearest difference is price: Control Freak Pool at Free against ClockMaster's $49.99. Control Freak Pool also leads on rating (5.0 vs 3.8) and review sentiment (100% vs 59%). ClockMaster's advantage is ratings volume (52 vs 5) and iOS requirement (18.0 vs 26.0). On ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Control Freak Pool holds the better App Store score, 5.0 against 3.8. That said, the two scores are not equally well evidenced: ClockMaster has 52 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 59% of ClockMaster's written reviews are positive against 100% of Control Freak Pool's.

UpkeepUpdate frequency

ClockMaster ships an update every 5 months, Control Freak Pool every 8 days. The most recent releases landed on September 25, 2026 and September 18, 2026 respectively.

Scorecard8 real differences · 2 level
ClockMaster versus Control Freak Pool: the parameters behind the verdict, then further details
ParameterClockMasterControl Freak Pool
Price$49.99Free — better
Rating3.8 (52 ratings)5.0 (5 ratings) — better
Positive reviews58.6% of reviews100.0% of reviews — better
Number of ratings52 — better5
Update frequencyEvery 5 monthsEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone
Requires iOS18.0 — better26.0
Further details — not scored
Size5 MB36 MB
Age rating4+4+
DeveloperONYX AppsDimig Digs LLC

Customer experience

ClockMaster

All ratings52 ratings
Positive71.2%
Neutral5.8%
Negative23.1%
Written reviews70 reviews
Positive58.6%
Neutral5.7%
Negative35.7%

Control Freak Pool

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

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

Control Freak Pool

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

ClockMaster

One-time1
  • ClockMaster Pro$29.99
None

Control Freak Pool

No in-app purchases

Questions

Is ClockMaster free?
ClockMaster costs $49.99, and also offers in-app purchases.
Is Control Freak Pool free?
Control Freak Pool is free to download, with no in-app purchases.
Which has better reviews, ClockMaster or Control Freak Pool?
Control Freak Pool is rated higher. ClockMaster averages 3.8 out of 5 from 52 ratings, while Control Freak Pool averages 5.0 from 5 ratings.
Do ClockMaster or Control Freak Pool have ads?
Neither ClockMaster nor Control Freak Pool shows ads.
Which is updated more often, ClockMaster or Control Freak Pool?
ClockMaster ships an update every 5 months, and Control Freak Pool every 8 days. Most recently, ClockMaster was updated on September 25, 2026 and Control Freak Pool on September 18, 2026.

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