Comparison

ClockMaster vs Rain Bird 2.0

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

Rain Bird 2.0

Control your sprinklers remotely with this app. Set custom watering schedules, automate weather adjustments, and monitor your system's performance from your mobile device. Save water and money with smart irrigation.

Highlights
  • Remote sprinkler control
  • Custom watering schedules
  • Weather-based adjustments
  • Device mapping
  • Custom site photos
  • Improved connection speed
Features
Read full description

Smart Watering Made Simple. Connect your Rain Bird controller to your mobile device with the new Rain Bird 2.0 app to turn on sprinklers, set up customized watering schedules, and automate weather adjustments, saving you water and money. New with Rain Bird 2.0 app: Device mapping – see where your controllers are located on the map Search and filter -- quickly find the controller to which you want to connect using the search function or commonly used filters Custom photos – upload photos of your site location or stations New look -- updated user interface and user experience Fast connect -- improved controller connection speed Compatible with the following Rain Bird controller models: ESP-LXME2 (new!) ESP-TM2 TRU ESP-2WIRE ESP-ME3 BAT-BT RC2 ARC Series More controller models coming soon! For more information: https://www.rainbird.com/products/esp-bat-bt 1-800-RAINBIRD

Screenshots

ClockMaster4 screens
Rain Bird 2.04 screens

Verdict

The call

The clearest difference is price: Rain Bird 2.0 at Free against ClockMaster's $49.99. Rain Bird 2.0 also leads on rating (4.5 vs 3.8) and in-app purchases (none vs 1). ClockMaster's advantage is review sentiment (59% vs 15%). 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

Rain Bird 2.0 is free to download; ClockMaster costs $49.99 up front. ClockMaster sells 1 one-off in-app purchase. Rain Bird 2.0 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rain Bird 2.0 holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Rain Bird 2.0 has 6.3K ratings behind it against 52, so its average is the more settled of the two. Written reviews complicate that: 59% of ClockMaster's written reviews are positive against 15% of Rain Bird 2.0's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ClockMaster ships an update every 5 months, Rain Bird 2.0 every 3 weeks. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

Scorecard8 real differences · 2 level
ClockMaster versus Rain Bird 2.0: the parameters behind the verdict, then further details
ParameterClockMasterRain Bird 2.0
Price$49.99Free — better
Rating3.8 (52 ratings)4.5 (6.3K ratings) — better
Positive reviews58.6% of reviews — better14.9% of reviews
Number of ratings526.3K — better
Update frequencyEvery 5 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad — better
Requires iOS18.016.0 — better
Further details — not scored
Size5 MB103 MB
Age rating4+4+
DeveloperONYX AppsRain Bird Corporation

Customer experience

ClockMaster

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

Rain Bird 2.0

All ratings6,256 ratings
Positive88.6%
Neutral2.9%
Negative8.4%
Written reviews484 reviews
Positive14.9%
Neutral7.4%
Negative77.7%

User reviews

ClockMaster

From 52 App Store ratings

What we love

  • 👍 Works very well
  • 👍 Accurately sets beat and calibrates time
  • 👍 Good alternative to expensive dedicated instruments
  • 👍 Elegant display for setting beat and symmetry
  • 👍 Works well for professional clock repairers

Room to improve

  • 😞 Frustrating data handling
  • 😞 Spreadsheet export issues
  • 😞 iPhone notifications stop measurements
  • 😞 Does not work for 400-day clocks
  • 😞 External mic option missing

Rain Bird 2.0

From 6.3K App Store ratings

What we love

  • 🚀 Fast and reliable connection
  • 🌟 Improved user interface
  • 📊 Weather forecasting and adjustment features
  • 🔒 Secure cloud-based control

Room to improve

  • 🐛 Connectivity issues and disconnections
  • 🤔 Confusing setup and registration process
  • 🤷‍♀️ Lack of feature parity with previous app version
  • 🕰️ Excessive weather adjustments

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

Rain Bird 2.0

Reported bugs

4 issues
  • Inability to log in or reset credentials
  • Zones renamed or disappearing
  • Unexpected program start times
  • Firmware update issues

Requested features

4 requests
  • History of system and station runtimes
  • Ability to independently control/schedule programs
  • Integration with smart home platforms
  • Improved weather data accuracy and customization

In-app purchases

1 purchases

ClockMaster

One-time1
  • ClockMaster Pro$29.99
None

Rain Bird 2.0

No in-app purchases

Questions

Is ClockMaster free?
ClockMaster costs $49.99, and also offers in-app purchases.
Is Rain Bird 2.0 free?
Rain Bird 2.0 is free to download, with no in-app purchases.
Which has better reviews, ClockMaster or Rain Bird 2.0?
Rain Bird 2.0 is rated higher. ClockMaster averages 3.8 out of 5 from 52 ratings, while Rain Bird 2.0 averages 4.5 from 6.3K ratings.
Do ClockMaster or Rain Bird 2.0 have ads?
Neither ClockMaster nor Rain Bird 2.0 shows ads.
Which is updated more often, ClockMaster or Rain Bird 2.0?
ClockMaster ships an update every 5 months, and Rain Bird 2.0 every 3 weeks. Most recently, ClockMaster was updated on October 12, 2026 and Rain Bird 2.0 on October 18, 2026.

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