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Watt for Smart Devices

Watt for Smart Devices

For Kasa Smart & Tapo |TP-Link

72 ratings
84 reviews
🔧 Utilities
🌟 Lifestyle
Free
In-App Purchases

Details

  • Released
  • Updated
  • June 5, 2019
  • January 7, 2026

Features

Developer

Tiago Mendes
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Watt for Smart Devices screenshot #1 for iPhone
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Watt for Smart Devices screenshot #9 for iPhone
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🧾$0.49 - $18.49
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About

Unify control of your TP-Link Kasa and Tapo smart devices in one intuitive app. Monitor energy usage with detailed charts, manage devices with Siri voice commands, and utilize features like Night Mode and custom spaces for effortless smart home management.

✓Unified Kasa & Tapo device control
✓Energy consumption monitoring with charts
✓Siri voice control for devices
✓Night Mode for device LEDs
✓Organize devices by spaces/rooms
✓Home screen widgets for quick access
Show original description

What users say

Summarized from real user reviews of Watt for Smart Devices. Based on 72 reviews and a 4.0/5 average, it highlights the 8 positives and 10 negatives reviewers mention most about this Lifestyle app.

Positive things

  • 📊Better energy monitoring than official Kasa app
  • 🎤Siri integration for voice control
  • 👍Intuitive user interface and easy setup
  • 💡Advanced graphical data visualization
  • 🔄Multi-device control in single app
  • ⚡Responsive developer with good communication
  • 🎨Dark mode and customization options
  • 📱Cross-platform support (Mac, iOS, Apple Watch)

Negative things

  • 💰Requires subscription for full functionality
  • 🐛Frequent device recognition failures
  • 📷No camera support (Tapo/Kasa cameras)
  • 🔐Requires sharing TP-Link login credentials
  • 📉Unreliable data display and chart rendering
  • 🚫Inconsistent device compatibility
  • ⚠️App crashes and freezing issues
  • 🔌Devices frequently show as offline/unreachable
  • 🗣️Voice commands breaking after updates
  • ❌Missing device support (HS200, L530, EP40, etc.)
See all reviews

What's New in Watt for Smart Devices

6.0.4

January 7, 2026

Hotfix to resolve issues that were occurring with widgets and Siri.

Subscription plans

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$0.491 Month
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User reviews

Most RecentHighest RatedLowest Rated

Voice commands are no longer working

Voice commands have completely broken and no longer work. All Siri ever does is say “Something went wrong. Please try again”…
KING CRA1GKING CRA1G

Great for plugs and bulbs

Works well enough for the smart plugs and the bulbs. I can add shortcuts so I can control my lights using the shortcuts app on my Apple Watch. There is no support for the cameras though and I’ve not purchased the hub and other sensors to try them out but will update my review if they also work.
Chris BradyChris Brady

No longer supports Kasa HS200 switches

No longer supports KASA HS200 fixtures
Tribe_Tribe_

???

The graphs are nonsense, sometimes even curving back over themselves. Ooops. Also, as mentioned, no camera support. Huh?
eeek69eeek69

Tapo devices missing

This did work but now my Tapo devices have simply vanished tried everything to get them back, and nothing. Can’t give zero stars so 1 will do
DexteryoutDexteryout
See 79 more reviews

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User experience

🐞

Reported Bugs

16 issues

Voice commands return 'Something went wrong' error

Bug

Devices disappear after app updates

Bug

Session expiration errors requiring re-login

Bug

Chart data only displays in year view

Bug

Graphs curve back on themselves and show nonsense

Bug

M1 Mac compatibility crashes

Bug

App crashes on startup

Bug

Loading screen hangs indefinitely

Bug

Device toggle fails silently

Bug

Energy consumption data stuck at zero

Bug

Devices show as on when they are off

Bug

Week/month/30-day charts not updating properly

Bug

Device detection network fault errors

Bug

Tapo device support broken after updates

Bug

Incompatibility with newer TP-Link devices

Bug

App version too old error messages

Bug
✨

Requested Features

15 requests

Camera support for Tapo and Kasa cameras

Feature

One-time purchase option instead of subscription

Feature

Hourly power consumption data granularity

Feature

Peak and off-peak electricity rate configuration

Feature

Device renaming with custom names

Feature

Device tagging and filtering by tags

Feature

Individual outlet control for power strips

Feature

Schedule and timer functionality

Feature

Smart automation actions

Feature

Larger font sizes for accessibility

Feature

Maximum/minimum energy value display

Feature

Half-hourly data segments

Feature

Data export functionality

Feature

Unrecognized usage alerts

Feature

Per-space graphing capability

Feature

FAQ

What does the Watt app do?

The Watt app serves as a unified control center for TP-Link Kasa and Tapo smart home devices. It allows users to manage their smart plugs, bulbs, and switches from both product lines within a single, user-friendly interface. The app also provides detailed energy consumption monitoring and Siri voice control capabilities.

What are the key features of Watt for Smart Devices?

Key features include unified control of Kasa and Tapo devices, daily updated charts for energy consumption with cost estimates, Siri voice control for device operations, a Night Mode to turn off device LEDs, the ability to organize devices into spaces/rooms, and home screen widgets for quick access to consumption data.

Is Watt for Smart Devices free to use?

The app is free to download and use, offering core functionalities for controlling your smart devices and monitoring energy usage. Additional features or advanced functionalities may be available through in-app purchases, as indicated by the app's monetization model.

What devices are supported by Watt for Smart Devices?

The app supports a wide range of TP-Link Kasa and Tapo smart devices, including Smart Plugs with Energy Monitoring, standard Smart Plugs, Smart Switches, and Smart Bulbs. Specific model numbers for both Kasa and Tapo are listed within the app's description for compatibility verification.

How can I use Watt to monitor my energy consumption?

Watt provides simplified graphs updated daily that display your energy consumption in watts and your local currency. You can view charts for runtime and energy usage, and even export this data to CSV for further analysis. This feature is particularly useful for smart plugs with energy monitoring capabilities.