Source-backed analysis12
Review basis
Research-based review: the AppDuo Editorial Team compiled it from official pages, documentation, app stores, press and user feedback, without hands-on testing. Every claim links to a source with the date it was checked.
12 reference sourcesInformation updated Nov 10, 2026
How we review
WhatsApp Review
Free messaging and calling with default end-to-end encryption, used worldwide
By AppDuo Editorial Team · Updated
- iOS
- Android
- Windows
- macOS
- Web
On this page
Decide at a glance
Our verdict
WhatsApp suits people who want free international messaging and calls with default end-to-end encryption, and businesses that want a widely used customer channel. The trade-offs are Meta ownership, data sharing with Meta companies, and ads in the Updates tab since 2025.
Best for: People keeping in touch with friends and family abroad who want end-to-end encryption by default
Skip it if: People who want to avoid the Meta ecosystem or data sharing with Meta companies
Pros
- End-to-end encryption by default for messages and calls, with nothing to switch on
- Free for personal users, with phone, desktop and web apps
- Huge scale and strong store ratings: more than 2 billion monthly active users (Meta, 2025); 4.7/5 on the App Store and 4.6/5 on Google Play
Cons
- The privacy policy allows sharing with Meta companies; the Jan 2021 update caused strong backlash
- From June 2025 Meta announced ads in Status and promoted channels in the Updates tab
All pros and cons · Who is it for?
Pros
- WhatsApp Business and a Business Platform with published per-message pricing
Cons
- Chats with businesses using Meta's services, and payments, are not end-to-end encrypted
- Documented security issues (a calling flaw in 2019, about 3.5 billion phone numbers scraped in 2025); 1.4/5 on Trustpilot with complaints about unexplained bans
Best for
- Businesses and shops that want customer support through WhatsApp Business and its API
Skip it if
- Anyone needing six-figure groups or an open bot ecosystem like Telegram's
Problems it solves
Experience & key features
What is WhatsApp?
WhatsApp is a messaging and calling app founded by Jan Koum and Brian Acton; per Wikipedia the first version was released on 3 May 2009. On 19 Feb 2014 Facebook announced its acquisition for $19 billion. Meta said WhatsApp had more than 2 billion monthly active users in 2025, and Wikipedia records 3 billion in May 2025. The homepage describes messaging and calling as free, with data charges possibly applying.
Key features
WhatsApp offers messaging, voice and video calls, groups, stickers, GIFs, voice messages, emoji reactions and Status. Channels launched in June 2023. Apps exist for phones, tablets, desktops and the web. For businesses there are the WhatsApp Business app and the Business Platform, whose Cloud API launched in May 2022.
Pricing and value
Personal users pay nothing. On 16 Jun 2025 Meta announced three monetisation features in the Updates tab: ads in Status, promoted channels and paid channel subscriptions, rolling out over a few months. Meta said personal messages, calls and statuses stay end-to-end encrypted and cannot be used for ads. For businesses, the Business Platform charges per delivered message by recipient market and four categories: marketing, utility, authentication and service.
More analysis
Privacy and security
End-to-end encryption is on by default for messages, photos, videos, voice messages, documents, live location, status updates and calls, per the help page. Exceptions include business chats using Meta's services and payments. On the other side, the policy allows sharing with Meta companies, and a Jan 2021 proposal was postponed after backlash. Wikipedia also records a calling vulnerability in May 2019 and the extraction of about 3.5 billion phone numbers in April 2025, fixed in October 2025.
Who it's for and how it compares
WhatsApp is strongest when your contacts are spread across countries. Signal is more privacy-focused and not owned by an advertising company; Telegram has big groups, channels and bots but only Secret Chats are end-to-end encrypted; in some countries other apps dominate (in Vietnam, for example, Zalo and Messenger are more common), and what matters is what your contacts use. Many people run two apps depending on the circle.
Screenshots
Plans & pricing
Prices last verified Nov 10, 2026
WhatsApp (cá nhân / personal)
PersonalFree
The homepage calls messaging and calling free, with a footnote that data charges may apply. The official pages reviewed list no paid personal tier.
WhatsApp Business Platform
BusinessContact sales
For businesses, charged per delivered message, with rates depending on the recipient's market and the category: marketing, utility, authentication or service. Service messages and utility replies to users are not charged. Conversations opened via Click to WhatsApp ads or a Facebook Page button are free for 72 hours. Market-specific rates are on the official pricing page.
- Free plan limits
- Personal users get messaging, voice and video calls, groups and Status for free. On 16 Jun 2025 Meta announced ads in Status, promoted channels and paid channel subscriptions in the Updates tab; the privacy policy says WhatsApp does not allow third-party banner ads.
- Free trial
- No free trial
Cancellation & refunds
Not applicable to the free personal app; the pages reviewed state no refund policy for the business service.
Privacy
Per the official help page, messages, photos, videos, voice messages, documents, live location, status updates and calls are end-to-end encrypted by default, so not even WhatsApp can read them. Exceptions are chats with businesses that use Meta's optional services, payments, and third-party agent chats managed by Meta. The privacy policy (marked effective 4 Jan 2021) says WhatsApp is one of the Meta Companies and receives and shares information with them to operate and improve services, for safety, and to show relevant offers and ads across Meta products. Messages generally live on your device only; undelivered messages are kept encrypted for up to 30 days. A phone number and profile name are required; contacts upload is optional. Businesses can see the content of messages you send them. In Jan 2021 a proposed data-sharing update with Facebook triggered backlash and was postponed to 15 May 2021. In April 2025 Austrian researchers extracted about 3.5 billion users' phone numbers; Meta fixed the issue in October 2025 (per Wikipedia).
WhatsApp alternatives
7.3/10Telegram
Cross-platform cloud messaging with 200,000-member groups, channels and bots
7.1/10Messenger
Meta's chat and group video app, with end-to-end encryption by default for personal chats
Frequently asked questions
Is WhatsApp free?
Yes, messaging and calling are free for personal users (data charges may apply). Businesses on the Business Platform pay per message.
Is WhatsApp end-to-end encrypted?
Yes, by default for personal messages and calls. Business chats using Meta's optional services and payments are excluded.
Does WhatsApp show ads?
The privacy policy says WhatsApp does not allow third-party banner ads. On 16 Jun 2025 Meta announced ads in Status and promoted channels in the Updates tab, rolling out over several months.
Does WhatsApp support Vietnamese?
Yes. The App Store lists Vietnamese among WhatsApp's interface languages.
Review evidence & sources12
Scores
- Ease of use
- 8.6
- Features
- 7.8
- Value for money
- 8.5
- Performance
- 7.7
- Support
- 5.0
- Privacy & security
- 7.0
Why this score
4.7/5 on the App Store (over 456,000 ratings in Vietnam) and 4.6/5 on Google Play; phone-number sign-up and all major platforms. Few complicated features make it easy to pick up.
Why this score
Messaging, voice and video calls, groups, Status, Channels, voice messages, location sharing, desktop and web apps and business tools. Less flexible than Telegram for huge groups, bots and customisation.
Why this score
Free for personal users. The cost is ads in the Updates tab and data used within Meta's ecosystem. Business fees are per message and depend on market-specific rates.
Why this score
No independent benchmarks. The app updates very frequently (version 26.44.72 on 9 Nov 2026) and serves more than 2 billion users, but release notes only mention bug fixes in general.
Why this score
A help centre (faq.whatsapp.com) and business documentation, but no phone or staff chat for personal users was found. On Trustpilot (1.4/5) many reviewers report unexplained bans, failed appeals and bot-only replies.
Why this score
Credit for default end-to-end encryption, messages not lingering on servers and Meta's statement that personal messages, calls and statuses are not used for ads. Marked down for sharing information with Meta companies, the mass phone-number scraping in 2025 and business chats without end-to-end encryption.
What users say
- App Store (Vietnam)4.7/5 · 456,814
- App Store (United States)4.7/5 · 18,932,738
- Google Play (United States)4.6/5 · 247,435,879
- Trustpilot1.4/5 · 1,745
Sources
- Vendor-providedWhatsApp homepageNov 10, 2026
- Vendor-providedWhatsApp Security pageNov 10, 2026
- Vendor-providedWhatsApp Privacy PolicyNov 10, 2026
- Vendor-providedWhatsApp Help: end-to-end encryptionNov 10, 2026
- Vendor-providedWhatsApp Business Platform pricingNov 10, 2026
- storeApp Store listing (Vietnam)Nov 10, 2026
- storeiTunes Lookup API (Vietnam: rating, version, languages)Nov 10, 2026
- storeApp Store listing (United States)Nov 10, 2026
- storeGoogle Play listing (United States)Nov 10, 2026
- review-siteTrustpilot: whatsapp.comNov 10, 2026
- pressThe Star (2025-06-16): WhatsApp introduces first major advertising featuresNov 10, 2026
- Community-reportedWikipedia: WhatsAppNov 10, 2026
Specs & compatibility
- Developer
- WhatsApp LLC (Meta)
- Headquarters
- United States
- Launched
- 2009
- Category
- Social
Capabilities
- End-to-end encryption
- Public API
- AI features
- Integrations
- Mobile app
Platforms
- iOS
- Android
- Windows
- macOS
- Web
Interface languages
- Vietnamese
- English
- Japanese
- Chinese
- Spanish
- French
- Korean
- German
- Portuguese
- Russian
- Thai
- Indonesian
Integrations
- WhatsApp Business Platform (Cloud API)
- Meta Ads (click to WhatsApp)
- Facebook Pages
Support
- Help center
Change history
- Update.The Russian government fully blocks WhatsApp (per Wikipedia).
- Feature.Meta announces ads in Status, promoted channels and paid channel subscriptions in the Updates tab.
- Feature.Channels launch, becoming widely available from September 2023.
Full change history (7)
- Update.A privacy update allowing data sharing with Facebook sparks backlash and is postponed to 15 May 2021.
- Feature.WhatsApp announces end-to-end encryption now covers every form of communication.
- Company.Facebook announces it will acquire WhatsApp for $19 billion.
- Launch.WhatsApp is first released.
About the author
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