# Watt for Smart Devices — For Kasa Smart & Tapo \|TP-Link

> Unified control and energy monitoring for TP-Link Kasa and Tapo smart devices. (iPhone/iPad app by Tiago Mendes.)

- Source: https://appshunter.io/ios/app/watt-for-smart-devices/id1465004830 (this page in markdown: same URL + `.md`)
- Developer: [Tiago Mendes](https://appshunter.io/developer/1235886918)
- Category: Lifestyle, Utilities
- Price: Free with in-app purchases
- Rating: 4.00/5 from 73 App Store ratings · 84 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.6 · 63 MB
- Languages: American English
- Released: 2019-06-05
- Data updated: 2026-08-24
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/watt-for-smart-devices/id1465004830/reviews.md

## What is Watt for Smart Devices?

Watt is the ultimate companion app for TP-Link smart home devices, Kasa Smart and Tapo. Available for iOS, iPad, and macOS, Watt offers unique and user-friendly features to make your life easier. With its modern and clean design, you can now control all your smart devices with just one app.

(Watt does not support Security Cameras from Kasa or Tapo)

With Watt, you can monitor your energy consumption with daily updated, simplified graphs. The app supports voice control with Siri, allowing you to turn devices on and off, create events with shortcuts, and check the current status of your devices. Watt also has a Night Mode feature to turn off device LEDs and a Reset Stats feature to erase statistics.

Watt supports a wide range of smart devices, including Smart Plugs with Energy Monitoring, Smart Plugs, Smart Bulbs, and more. The app provides an overview of all active devices on the home screen and offers charts for runtime and energy consumption, as well as cost estimates. Watt also supports the concept of spaces/rooms for easy device management.

Now you can go even smarter with our unique features while navigating in a more cleaner and modern look. Watt are you waiting for?

~~~~~~~~~~~~~
Unique Features
~~~~~~~~~~~~~

Watt gives you unique and simple features to make your life easier. And the best part is controlling everything with just one app.

CHARTS
Simplified graphs, updated daily, with all information about your energy consumption, both in watts and in your specific money currency.
Export the dataset of the chart to CSV ("Excel")

VOICE CONTROL with SIRI 
Control your devices with a little help from Siri, turn on & off devices, one or several at once, create events with shortcuts, know the device's current status.

USABILITY
The experience of the app was designed based on the user's needs, with intuitive navigation, simple design, and relevant updates, all of this in the same app, we are able to provide the best experience for users

NIGHT MODE
Turn off the device led and have better sleep.

RESET STATS
Reset all the statics (Runtime and consumption)

KASA & TAPO
One single app to control the two product lines from TP-Link

WIDGETS 
Check consumption and chart directly from your home screen


-----------#- Supported Devices -#-----------

KASA - Smart Plug with Energy Monitoring: EP25, HS110, HS300, KP115, KP125, KP125M

KASA - Smart Plug: HS100, HS103, HS105, HS107, KP100, KP105, KP200, KP303, KP400, KP405, EP10, EP40

KASA - Smart Switch: HS200, HS210, HS220, KS200M, KS200, KS220M, KS230, ES20M,

KASA -  Smart bulbs: KL50, KL50B, KL60, KL110, KL110B, KL120, KL125, KL130, KL135,KL400, KL420, KL430, LB100, LB110, LB120, LB130, LB200, LB230

TAPO - Smart Plug: P100, P105, P110, P115, P125, P125M, P410M, TP10, TP11, TP15

TAPO - Smart bulbs: L430C, L510, L520, L530, L535, L610, L630, L900, L920, L930, TL13, TL31, TL33, TL61, TL62, TL63, TL135


Take control of your electricity cost using the Watt!!!
Check all your Smart Plug with Energy Monitoring consumption in real-time.

If you want to have a look at the Roadmap for the app:
https://watt-app.com/

Disclaimer: This app is not affiliated, endorsed, or supported by Tp-Link in any way, Kasa and Tapo are trademarks of Tp-Link. Watt for Smart Devices is a third-party application intended to work with smart home devices from Tp-Link and by doing that offers the Tp-link IoT Community another way to control devices and explore new features.

Icons provided by Icons8

Terms of Use:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Terms & Conditions:
https://www.watt-app.com/privacy/watt_terms_conditions.html

## Key features

- 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

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Buy Me a Marshmallow | $0.49 | per month |
| Buy Me a Bag of Marshmallows | $4.99 | per year |
| Yearly 4x more support to App! | $18.49 | per year |
| Buy Me a Chocolate Bar | $0.99 | per month |
| Buy Me a Coffee | $1.99 | per month |
| Buy Me a Pack of Chocolate Bar | $8.99 | per year |
| Buy Me a Bag of Coffee | $18.49 | per year |


## What do users think of Watt for Smart Devices?

Overall sentiment: mixed

**Pros**

- 📊 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)

**Cons**

- 💰 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.)

**Commonly reported bugs**

- Voice commands return 'Something went wrong' error
- Devices disappear after app updates
- Session expiration errors requiring re-login
- Chart data only displays in year view
- Graphs curve back on themselves and show nonsense
- M1 Mac compatibility crashes
- App crashes on startup
- Loading screen hangs indefinitely
- Device toggle fails silently
- Energy consumption data stuck at zero
- Devices show as on when they are off
- Week/month/30-day charts not updating properly
- Device detection network fault errors
- Tapo device support broken after updates
- Incompatibility with newer TP-Link devices
- App version too old error messages

**Most requested features**

- Camera support for Tapo and Kasa cameras
- One-time purchase option instead of subscription
- Hourly power consumption data granularity
- Peak and off-peak electricity rate configuration
- Device renaming with custom names
- Device tagging and filtering by tags
- Individual outlet control for power strips
- Schedule and timer functionality
- Smart automation actions
- Larger font sizes for accessibility
- Maximum/minimum energy value display
- Half-hourly data segments
- Data export functionality
- Unrecognized usage alerts
- Per-space graphing capability

## Recent user reviews (10 of 84)

All indexed reviews: https://appshunter.io/ios/app/watt-for-smart-devices/id1465004830/reviews.md

### 1/5 — Voice commands are no longer working

*2026-01-05, version 6.0.3*

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

### 4/5 — Great for plugs and bulbs

*2025-04-18, version 6.0.1*

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.

### 1/5 — No longer supports Kasa HS200 switches

*2025-04-06*

No longer supports KASA HS200 fixtures

### 2/5 — ???

*2025-02-21, version 6.0.1*

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

### 1/5 — Tapo devices missing

*2025-02-16, version 6.0.1*

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

### 5/5 — Great App for Mac and iOS!

*2025-01-20*

This app has really matured nicely. Watt works perfectly for me on all platforms. It is great having this option to manage my Kasa items.

### 1/5 — Waste of time

*2024-12-21, version 5.2.16*

Waste of time does not support cameras

### 5/5 — Works great with optional IAP

*2024-12-03*

This shows a graph of your overall usage which is good but it doesn’t show the max or minimum energy values which would be even more helpful.

### 1/5 — Only shows data in year view

*2024-11-30*

I’ve been using the app for a week now and it only shows data on the chart in the year view. 

The boxes under the chart do not show any data for the month, day, or week. If I tap the chart it shows data for the current month 

If I can’t see the data this app doesn’t do anything more than I can do in the Apple Home app. I’m cancelling my subscription.

### 5/5 — Great App

*2024-10-26, version 5.2.13*

Superb app which gives you a better graphical overview of your energy usage in particular. Only wish is a manual dark mode!

## Frequently asked questions about Watt for Smart Devices

### 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.

## Version history (last 5 releases)

### 6.0.5 — 2026-08-22

Added support for Tapo TP11 and Tapo P410M
Fixed issue with charts showing values tomorrow.
Other bugs and fixes.

### 6.0.4 — 2026-01-07

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

### 6.0.3 — 2026-01-04

Added support for Tapo TP15

### 6.0.2 — 2026-01-02

Added support for new Tapo lights, L430C, TL13, TL61, TL62, TL63

### 6.0.1 — 2025-02-15

Fix slow loading of devices
Fix issue with consumption dates delayed for Tapo devices

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## More apps by Tiago Mendes

- [Voless](https://appshunter.io/ios/app/voless/id1235886919)
- [Crossbow for AirPlay](https://appshunter.io/ios/app/crossbow-for-airplay/id1511318195)
- [Halo OS](https://appshunter.io/ios/app/halo-os/id1578192575)
- [GamePod XL - Mini-Games 4 all](https://appshunter.io/ios/app/gamepod-xl-mini-games-4-all/id6443708119)
- [90s Screen Saver](https://appshunter.io/ios/app/90s-screen-saver/id6447647529)

All apps by Tiago Mendes: https://appshunter.io/developer/1235886918

## Related topics

[watt for smart devices](https://appshunter.io/ios/topics/watt-for-smart-devices) · [tiago mendes](https://appshunter.io/ios/topics/tiago-mendes) · [jada](https://appshunter.io/ios/topics/jada) · [watts home](https://appshunter.io/ios/topics/watts-home) · [tiagos](https://appshunter.io/ios/topics/tiagos) · [kasa tp link](https://appshunter.io/ios/topics/kasa-tp-link)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*