# ClockMaster vs Rain Bird 2.0

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.

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.

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.

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 19, 2026 respectively.

## The numbers

| Metric | ClockMaster | Rain Bird 2.0 |
| --- | --- | --- |
| Price | $49.99 | **Free** |
| Rating | [3.8 (52 ratings)](https://appshunter.io/ios/app/clockmaster-time-regulator/id413901882/reviews) | **[4.5 (6.3K ratings)](https://appshunter.io/ios/app/rain-bird-20/id6472510505/reviews)** |
| Number of ratings | 52 | **6.3K** |
| Positive reviews | **58.6% of reviews** | 14.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 5 MB | 103 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [ONYX Apps](https://appshunter.io/developer/356553882) | [Rain Bird Corporation](https://appshunter.io/developer/958281909) |

## What reviewers say

### ClockMaster

[App page](https://appshunter.io/ios/app/clockmaster-time-regulator/id413901882)

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:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ClockMaster Pro | $29.99 | one-time |

**What reviewers like**

- 👍 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

**What reviewers complain about**

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

**Reported bugs**

- Data lost if app stops unexpectedly
- iPhone notifications interrupt measurements
- External mic option not available
- App freezes after iOS upgrade
- Screen touch points unresponsive

**Requested features**

- 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


### Rain Bird 2.0

[App page](https://appshunter.io/ios/app/rain-bird-20/id6472510505)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

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

**What reviewers complain about**

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

**Reported bugs**

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

**Requested features**

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


## Frequently asked 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 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*