Best Watts Apps

245+ iOS apps curated and reviewed

4.4 avg rating

19 free apps

Updated August 2026

Out of 245+ watts apps on iOS, 19 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Watts Apps (August 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	WhatsApp Messenger	Free	4.7★ (19M)	Yes	Yes	Sep 2026
2	WhatsApp Business	Free	4.7★ (1.5M)	Yes	Yes	Sep 2026
3	Watts® Home	Free	4.6★ (3.7K)	No	No	Sep 2026
4	Vemo Watts	Free	3.6★ (46)	No	No	Sep 2026
5	Watts 2.0	Free	—	No	No	Jul 2026
6	Watts	Free	3.0★ (2)	No	No	May 2026
7	Watts - A power converter	Free	5.0★ (1)	No	No	Aug 2026
8	Watts	Free	—	No	No	May 2026

Top Picks for Watts

WhatsApp Messenger by WhatsApp Inc.

Simple. Reliable. Private.

Editor's Choice

🌐 Social Networking

4.7😊(19M ratings)

FreeAdsIn-App Purchases

#2in Social Networking

Connect with friends and family globally through private messaging and high-quality calls. Share moments, documents, and stay in touch across devices, even on slow connections. Your conversations are secured with end-to-end encryption.

What We Love

💬 Great communication tool
🌍 Connects people globally
🔒 Secure and private messaging
📱 Versatile features (calls, video, groups)
🆓 Free to use

Room to Improve

🐛 Bugs and glitches (freezing, crashing, notification issues)
🔒 Privacy concerns with data sharing
🙈 Lack of customization and control (status, groups)
📤 Backup and restore issues
🚫 Arbitrary account bans

WhatsApp Business by WhatsApp Inc.

Strong Contender

💼 Business

4.7😐(1.5M ratings)

FreeAdsIn-App Purchases

#17in Business

This app offers business tools to help you work smarter, build trust, and grow your customer base. It provides automated messages, organized conversations, and a professional profile to enhance customer interactions and sales.

What We Love

🚀 Excellent communication tool
👍 User-friendly interface
🔒 Secure messaging
💡 Helpful business features

Room to Improve

🐛 Frequent app crashes and hangs
🔍 Lack of customer support
🔒 Privacy concerns with account suspensions
🤔 Confusing account management

Watts® Home by Watts Water Technologies

Worth Considering

🌟 Lifestyle

4.6😞(3.7K ratings)

Free

Control and monitor your Watts connected home devices remotely. Manage thermostats, snow melting systems, and floor heating with programmable schedules and energy-saving modes. Receive alerts for any issues and access support easily.

What We Love

🚀 Reliable connectivity
👍 Easy to use
🔥 Awesome app updates
🌡️ Helpful temperature monitoring

Room to Improve

🐛 Connectivity issues
🤯 Frequent sign-outs
🤔 Limited functionality
🤖 Unstable app performance

More Watts apps to explore

Vemo Watts

by Mobility Charging Network, S. de R.L. de C.V.

Free

Locate nearby electric vehicle charging stations, manage your charging sessions in real-time, and make secure payments directly from your phone. This app is designed for electric car drivers seeking a convenient and sustainable mobility solution.

Find nearby charging stationsReal-time availability informationManage charging sessions

Control Watts 2.0 LED controllers with this application. Adjust lighting settings and manage your devices.

Control LED controllersManage lighting settingsDevice management

Calculate the cost of running electrical devices over time. This simple tool helps you understand your energy consumption expenses.

Calculate device running costsEasy to use interfaceTrack energy expenses over time

🔧 Utilities

(2)

free

Watts - A power converter

by Eclectic DNA, LLC

Free

Easily calculate electrical power, amperage, or voltage. This tool simplifies electrical calculations for users needing to find one value when the other two are known.

Calculate wattageCalculate amperageCalculate voltage

by 2301114 Alberta Ltd

Free

Control your outdoor smart lighting system remotely. Schedule custom animations, adjust colors, and enhance your home's ambiance and security from anywhere via the internet.

Remote control of outdoor lightsScheduling and automationMulticolored LED control

Control your home's heating, lighting, and electrical appliances with an intelligent smart home system. Manage hydronic and electric underfloor heating, radiators, and more from your devices.

Smart home systemControl heating (hydronic/electric)Control lighting

🔧 Utilities

(0)

free

Watts Lights Local Control

by 2301114 Alberta Ltd

Free

Control your Watts Lighting System v2.0 directly when Wi-Fi or cloud access is unavailable. This utility app provides local management for your lighting system.

Local controlWIFI independentCloud control alternative

🔧 Utilities

(0)

free

Amazon Kindle: Reading App

Read books. Millions of ebooks

Free

Access a vast library of eBooks, magazines, and comics on your mobile device. Customize your reading experience with adjustable text, brightness, and page-turning options. Look up words, track progress, and sync across devices.

Read purchased eBooksAccess Kindle UnlimitedCustomizable text and display

📚 Books

(5.8M)

free with in-app purchases

WATTS Battery

by Uatts Beteri, OOO

Free

This application enables communication with a smart, portable energy storage module. It allows users to store solar energy and utilize it when needed, serving as an alternative to generators or an intelligent home energy management system.

Communicate with WattsBattery moduleStore and manage solar energyAlternative to gasoline generators

Slimme energie-oplossingen

by The Church Online LLC

Free

This app provides official access to Watts Chapel Missionary Baptist Church. Stay connected with the church community and its leadership in Raleigh, North Carolina.

Official church appConnect with church leadershipInformation about Watts Chapel

Access exclusive memberships, view the beer menu, and track rewards. Discover upcoming events, make reservations, and find directions to the brewery. Stay connected with the latest updates and offers.

Exclusive MembershipsBeer MenuRewards Program

Run club training & merch

Easily determine microwave cooking times by inputting recipe details and your microwave's wattage. The app automatically saves your microwave's power for future use. Optimized for high-resolution displays on supported devices.

Calculate recommended cook timeInput recipe cook timeInput recipe microwave wattage

🔧 Utilities

(15)

free with in-app purchases

Just The Watts

by Zachary Bell

Free

This cycling app connects to your Bluetooth sensors for real-time indoor training data. Follow structured workouts or create your own, with virtual power options available. It offers a clean interface focused on your ride, without subscriptions or ads.

Bluetooth sensor pairingReal-time training dataFTP-based intervals

💪 Health & Fitness

(2)

free with in-app purchases

FAQ about Watts

What are the best watts apps for iPhone?

WhatsApp Messenger tops our watts apps ranking as of August 2026, with a 4.7-star average from 19M App Store ratings, and it's free to download.

Are there free watts apps for iPhone?

Yes — 19 of the top watts apps we rank are free to download, including WhatsApp Messenger and WhatsApp Business.

Does WhatsApp Messenger have ads or in-app purchases?

WhatsApp Messenger shows ads and offers in-app purchases, according to its App Store listing as of August 2026.

How many watts apps are on the App Store?

We track 245+ watts apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.

What does this messaging app do?

This app is a free messaging and calling application that allows users to connect with friends and family worldwide. It offers private messaging, high-quality voice and video calls, and the ability to share various types of content.

What are the key features of this app?

Key features include end-to-end encrypted private messaging and calls, group chats and calls with up to 32 people, cross-device connectivity (mobile, tablet, desktop), location sharing, and Status updates that disappear after 24 hours.

Best Watts Apps

Compare top Watts Apps (August 2026)

Top Picks for Watts

What We LoveHighlights summarized from real App Store user reviews

Room to ImproveCommon complaints summarized from real App Store user reviews

What We LoveHighlights summarized from real App Store user reviews

Room to ImproveCommon complaints summarized from real App Store user reviews

What We LoveHighlights summarized from real App Store user reviews

Room to ImproveCommon complaints summarized from real App Store user reviews

More Watts apps to explore

FAQ about Watts

Related searches

What We Love

Room to Improve

What We Love

Room to Improve

What We Love

Room to Improve