Whether you're an expat calling family in London, a freelancer collaborating with a Manchester agency, or just staying in touch with mates across the pond — calling the UK from abroad doesn't have to cost a thing. With 55M+ WhatsApp users and near-universal smartphone adoption, the UK is one of the easiest countries to call for free.
The only challenge? UK landlines. Millions of British households and businesses still use landline numbers — and app-to-app calling can't reach them. That's where browser tools and cheap VoIP apps fill the gap.
📌 Two Types of "Free" — Know the Difference
App-to-App
Both sides need the same app. WhatsApp, FaceTime, Telegram, Google Meet. Free but can't reach landlines.
App-to-Phone
Dial any UK number directly. PopTox, Dingtone, Viber Out. Reaches landlines + any phone.
Real Cost Comparison: Every Way to Call the UK
| Method | Cost | Free Minutes | Note |
|---|
| WhatsApp / FaceTime (WiFi) | $0 | Unlimited | Free on WiFi. Data costs on cellular. |
| PopTox (browser) | $0 | ~3–5 min/session | Free, 5 calls/number/day limit. |
| Dingtone | 1.0¢/min | Pay or earn | $10 = 500 min to UK. Best paid rate. |
| Viber Out | 1.9¢/min | Pay-as-you-go | Reliable but pricier than Dingtone. |
| Google Voice | 1–2¢/min | Pay-per-use | Not free. Requires US Google Voice. |
| Mytello (dial-in) | 1¢/min landline | Prepaid | Great for UK landlines specifically. |
| AT&T / Verizon | 25¢–$3/min | Per-use | Never do this. Use any VoIP instead. |
1WhatsApp
55M+ UK users — the default messaging app across Britain
Type: App-to-App
Price: Free (Both sides need WhatsApp)
Key Features
Unlimited free voice & video callsGroup calls up to 32 peopleEnd-to-end encryptedUses ~0.5–1 MB/min for voiceDesktop app available
✅ PROS
• Massive UK adoption (80%+ of smartphone users)
• HD audio on WiFi
• Free video calls
• Works on Android + iOS + Web
❌ CONS
• Can't call UK landlines
• Both sides need app + internet
• Meta collects metadata
• No emergency calling
Best for: Anyone calling friends, family, or colleagues in the UK.
2PopTox
Free browser calls to any UK number — zero setup
Type: Browser → Phone
Price: Free (Limited daily (5 calls/number/day))
Key Features
Call any UK mobile or landline from browserNo registration or app downloadDirect UK carrier partnershipsWorks on any device with mic
✅ PROS
• Zero setup — call instantly
• Reaches UK landlines (WhatsApp can't)
• No account needed
• Can call same number up to 5x/day
❌ CONS
• Limited minutes per session
• Quality varies by time of day
• Ads between calls
• No call history
Best for: Quick free calls to UK landlines or when you can't install apps.
3FaceTime
Pre-installed on every iPhone, iPad, and Mac
Type: App-to-App
Price: Free (Apple devices only)
Key Features
Free HD voice and video callsPre-installed — no download neededSpatial Audio on newer devicesSharePlay for watching togetherGroup FaceTime up to 32 people
✅ PROS
• Best video call quality available
• Zero setup on Apple devices
• Deep iOS integration (call from contacts)
• Low data usage with efficient codec
❌ CONS
• Apple-only — can't reach Android users
• ~50% of UK uses iPhone (others excluded)
• Can't call landlines or non-Apple phones
• No web version for callers
Best for: Calling iPhone/iPad users in the UK — if they have Apple, this beats everything.
4Dingtone
1.0 credit/min to UK = roughly 1¢/min — cheaper than India rates
Type: App → Phone
Price: 1.0¢/min (Or earn free credits)
Key Features
Call any UK mobile or landline at 1.0 credits/minEarn free credits via ads/offersFree US or UK phone number includedFree Dingtone-to-Dingtone callsiOS + Android
✅ PROS
• UK calls are incredibly cheap (1¢/min)
• Get a real UK phone number ($4.99/mo)
• 500 credits ($9.99) = 500 min to UK
• Call recording available
❌ CONS
• Earning credits is slow
• Aggressive ads and notifications
• Some offer tasks never pay out
• Quality dips during peak hours
Best for: Regular UK callers who want rock-bottom rates with a reliable app.
5Viber
Free app calls + Viber Out at ~1.9¢/min to UK numbers
Type: App-to-App + Paid
Price: Free / 1.9¢/min (Viber Out for landlines)
Key Features
Unlimited free calls between Viber usersViber Out: ~1.9¢/min to any UK numberDesktop app availableGroup calls + messaging
✅ PROS
• Free app-to-app calls
• Reliable Viber Out quality
• Occasional free Viber Out promotions
• Multi-device support
❌ CONS
• Less popular than WhatsApp in UK
• Viber Out credit expires after 180 days
• Dingtone is cheaper for UK (1¢ vs 1.9¢)
• Cluttered interface
Best for: Existing Viber users. Otherwise Dingtone beats it on UK rates.
6Telegram
Encrypted voice calls with growing UK adoption
Type: App-to-App
Price: Free (Both sides need Telegram)
Key Features
Free encrypted voice callsLower data usage than WhatsAppGroup video callsDesktop + mobile + webSecret chats with self-destruct
✅ PROS
• Better privacy than WhatsApp
• Growing UK user base
• Uses less data per call
• Cloud-based — works everywhere
❌ CONS
• Far fewer UK users than WhatsApp
• No landline calling
• Your contact needs to install it
• Voice call quality slightly below WhatsApp
Best for: Privacy-conscious callers whose UK contacts already use Telegram.
7Google Meet
Free video calls — great for business and family
Type: App-to-App
Price: Free (Google account needed)
Key Features
Free voice & video callsWorks on web, iOS, AndroidNoise cancellation + low-light modeGroup calls up to 100No app needed — works in browser
✅ PROS
• No download needed (web browser works)
• Google Calendar integration
• Excellent video quality
• Screen sharing included
❌ CONS
• App-to-app only
• Requires Google account
• Not commonly used for voice-only calls in UK
• Overkill for quick check-in calls
Best for: Business calls or family video chats with UK contacts.
8iEvaPhone
Browser-based free calls — no registration needed
Type: Browser → Phone
Price: Free (Very limited minutes)
Key Features
Free calls to UK numbers from browserNo registration or downloadSimple dial pad
✅ PROS
• Zero setup
• No app installation
❌ CONS
• Only 2–4 free minutes per day
• Rough call quality
• Better during off-peak hours
Best for: Emergency backup when PopTox isn't working.
9Call2Friends
Browser-based free trial calls to test quality
Type: Browser → Phone
Price: Free trial (Then paid)
Key Features
Free trial calls to UK from browserNo registration for first callMobile app available
✅ PROS
• Test VoIP quality for free
• No commitment
❌ CONS
• Very limited free minutes
• Trial quality intentionally lower
• Pushes paid credits aggressively
Best for: Testing VoIP quality to UK before committing to a paid service.
10Facebook Messenger
Free calls if your UK contacts use Facebook
Type: App-to-App
Price: Free (Both need Messenger)
Key Features
Free voice & video callsWorks in Facebook or standalone appGroup video callsCross-platform (iOS, Android, web)
✅ PROS
• Many UK people already have Facebook
• No phone number needed
• Free video calling
• Works in browser too
❌ CONS
• Privacy concerns (Meta)
• Can't call landlines
• App is bloated and battery-hungry
• Call quality inconsistent
Best for: Calling UK contacts who are on Facebook but not WhatsApp.
How to Dial the UK: Format & Area Codes
UK Mobile: +44 [10-digit number minus leading 0] → e.g. 07911 123456 becomes +44 7911 123456
UK Landline: +44 [area code] [number] → e.g. 020 7946 0958 becomes +44 20 7946 0958
⚠️ Always drop the leading "0" — London is +44 20, NOT +44 020
| City | Area Code |
|---|
| London | 20 |
| Birmingham | 121 |
| Manchester | 161 |
| Edinburgh | 131 |
| Glasgow | 141 |
| Liverpool | 151 |
| Leeds | 113 |
| Bristol | 117 |
| Cardiff | 29 |
| Belfast | 28 |
4 Money-Wasting Mistakes to Avoid
💸 Mistake #1: Forgetting to drop the leading zero
UK numbers start with 0 domestically. Internationally, London is +44 20, NOT +44 020. A mobile like 07911 123456 becomes +44 7911 123456.
💸 Mistake #2: Assuming FaceTime works for everyone
~50% of UK smartphone users have iPhones. The other half use Android and CAN'T receive FaceTime calls. Always have WhatsApp as backup.
💸 Mistake #3: Paying carrier rates to call UK landlines
AT&T charges $1–3/min for UK calls. Dingtone charges 1¢/min. That's a 100–300x markup for the same call. Never use your carrier for international calls.
💸 Mistake #4: Calling during UK business hours from US West Coast
UK is GMT/BST — 8 hours ahead of Pacific, 5 hours ahead of Eastern. When it's 9 AM in LA, it's 5 PM in London (people leaving work). Plan around this.
Decision Framework: Which Method Fits You?
| Your Situation | Best Pick |
|---|
| Calling UK friends/family with smartphones | WhatsApp (everyone in UK has it) |
| Calling a UK landline number | PopTox (free, quick) or Dingtone (1¢/min, reliable) |
| Video calling UK contacts with iPhones | FaceTime (best quality) |
| Video calling UK contacts with mixed devices | WhatsApp Video or Google Meet |
| Regular calls to UK landlines/mobiles | Dingtone — $10 buys 500 minutes to UK |
| Calling UK from a computer only | PopTox or WhatsApp Web |
| Need a UK phone number | Dingtone ($4.99/mo for UK number) |
| Business calls to UK | Google Meet (professional + free) |
Frequently Asked Questions
Can I call UK mobile numbers for free from the USA?+
What's the cheapest way to call a UK landline?+
Can I use Google Voice to call the UK for free?+
What's the UK country code?+
Does FaceTime work for calling the UK?+
Are UK VoIP calls legal?+
The Bottom Line
WhatsApp handles 90% of your UK calls for free. For landlines, PopTox gives you free quick calls and Dingtone offers unbeatable rates at just 1¢/min. Apple users calling other Apple users should use FaceTime for the best quality. The UK is one of the cheapest countries to call — never pay carrier rates.