K vs Hunter BTT
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
K
Control your K-Rain irrigation timers remotely via Bluetooth. Adjust watering schedules, zones, and monitor battery levels from your iPhone or iPad. Secure your controllers with a passcode.
- Bluetooth Smart Technology control
- Remote programming of watering schedules
- Manual start, stop, and suspend functions
- Zone configuration
- Battery level and connection status monitoring
- Passcode lock for security
- Control multiple timers
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Control your K-Rain BL-KR Battery Powered Timer, BL-24 Indoor Irrigation Timer and TC-KR Hose End Timer with one streamlined App and Bluetooth Smart Technology. No more crawling around the valve box trying to program or troubleshoot your battery powered timer – this app puts full programming control in the palm of your hand. This app allows you to: · Transform your iPhone or iPad into a remote control and fully program your BL-KR, BL-24 or TC-KR controller(s) using Bluetooth Smart technology from up to 32 feet (10m) away. · Manually start, stop or suspend your controller(s) from up to 32 feet away. · Fully configure watering schedules and zones. · Detect battery levels and connection status. · Add a passcode lock to each controller for added security. · The ability to add multiple BL-KR, BL-24 & TC-KR controllers and program/control them using 1 app on your iPhone or iPad. The K-Rain BL-KR Battery Powered Irrigation Controller uses a 9V DC Latching Solenoid, and comes in 1, 2 4 or 6 station models, all rain sensor ready. The K-Rain BL-24 Irrigation Timer comes with a 110V or 220V external transformer and can be configured in 4, 6, 9 or 12 station models, all rain sensor ready. The K-Rain TC-KR battery powered hose-end timer can be used for irrigation or misting and is powered by a 9V battery.
Hunter BTT
Automate garden and plant watering directly from a hose faucet using a Bluetooth-enabled tap timer. Remotely control irrigation schedules, start/stop watering, and monitor device status from your smartphone.
- Remote tap timer management
- Customizable watering schedules
- Manual irrigation control
- Battery level monitoring
- Device passcode security
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BTT is a Bluetooth®-enabled, app-configured tap timer from Hunter Industries that lets you automatically irrigate gardens, plants, flowers, and seedlings right from a hose faucet! BTT is easy to operate and simple to set up. It provides you with several convenient options to remotely program irrigation wirelessly from a smartphone. This means no more climbing around shrubs, stepping on delicate plants, or going outside to turn on the water. This app allows you to: • Remotely manage unlimited BTTs up to 32' (10 m) away • Manually start, stop, or suspend irrigation for up to seven days • Configure watering schedules using independent Timer or Cycling modes • View battery levels and connection status • Set language preferences • Assign passcodes to each device for additional security The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG Inc. and any use of such marks by Hunter Industries is under license.
Screenshots
Verdict
The clearest difference is rating: K at 3.3 against Hunter BTT's 2.8. K also leads on review sentiment (40% vs 17%). Hunter BTT's advantage is ratings volume (115 vs 9). On price, update cadence, 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.
K holds the better App Store score, 3.3 against 2.8. That said, the two scores are not equally well evidenced: Hunter BTT has 115 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 40% of K's written reviews are positive against 17% of Hunter BTT's.
K ships an update every 4 months, Hunter BTT every 6 months. The most recent releases landed on September 29, 2026 and October 21, 2026 respectively.
| Parameter | K | Hunter BTT |
|---|---|---|
| Price | Free | Free |
| Rating | 3.3 (9 ratings) — better | 2.8 (115 ratings) |
| Positive reviews | 40.0% of reviews — better | 17.4% of reviews |
| Number of ratings | 9 | 115 — better |
| Update frequency | Every 4 months — better | Every 6 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 41 MB | 26 MB |
| Age rating | 4+ | 4+ |
| Developer | K-Rain Manufacturing Corporation | Hunter Industries |
Customer experience
K
Hunter BTT
Bugs and requests
K
Not enough reviews yet to summarise bugs or requests.
Hunter BTT
Reported bugs
18 issues- App crashes when connecting to device
- White blank screen on startup
- Bluetooth connection drops frequently
- Settings revert after saving
- Schedule stops working after a few days
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- Manual watering stops unexpectedly
- Zone/channel controls switch randomly
- On/off positions reverse at random intervals
- App freezes during programming
- Cannot save schedule changes
- App hangs on opening screen
- Cycle timer page displays blank
- Day selection not working after recent update
- App crashes on iPhone 14 Pro and other iOS devices
- Manual mode buttons not visible on iPad
- App won't detect controller after update
- Automatic mode won't stay enabled
- Watering cycle displays incorrectly in app vs actual execution
Requested features
11 requests- WiFi connectivity instead of Bluetooth only
- Remote control from outside Bluetooth range
- Ability to select specific days instead of interval-based watering
- Multiple phone/user access capability
- Watering duration in seconds, not just minutes
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- Battery low notification via email/push alert
- Watering history and last execution display
- More than two on/off times per day
- Longer custom controller nicknames
- Improved app stability and performance
- Better help documentation and tutorials
In-app purchases
K
No in-app purchases
Hunter BTT
No in-app purchases








