Most apps that claim to replace Skype only call other app users — leaving you stranded when you need to reach a real mobile number. Here's the reality: fewer than half of the popular "Skype alternatives" actually connect to standard phone networks. Skype itself was shut down in May 2025 and folded into Microsoft Teams. So if you're hunting for something that calls actual mobile numbers in 2026, you need a different list entirely.
Key Takeaways:
- Fewer than 4 of the 8 tools listed here are fully free for mobile calls — most require a small balance or subscription
- Apps like WhatsApp and FaceTime only call other app users; GlobCall, Google Voice, and Rebtel connect to real mobile numbers
- Rates for mobile calls vary dramatically — from $0.02/min to over $0.46/min depending on the country and service
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1. GlobCall — Browser-Based Calls With No Download Required
GlobCall connects to real mobile and landline numbers in 100+ countries, starting at $0.02 per minute for the US and Canada. There's no app to install, no SIM card needed, and no roaming charges — you call straight from your browser. For individuals and teams alike, it's one of the most flexible options available in 2026.
You top up a balance and pay only for what you use. Calls to India run $0.08/min, Mexico $0.03/min, and the Philippines $0.46/min — all displayed upfront with no surprises. For businesses, there's a shared balance model with unlimited team members and no seat fees, which is genuinely unusual among VoIP providers.
If you've never made a browser-based call before, the GlobCall FAQ on how to call internationally from a browser walks you through it clearly. New users also get access to a 60-minute free call trial to test the quality before committing any money.
Honestly, this is the one to try first.
2. Google Voice — Free US Calls, Limited Internationally
Google Voice offers genuinely free calls to US and Canadian mobile numbers if you're calling from within the United States. Outside those borders, rates apply — and international mobile rates aren't always cheap. It works through a browser or app, assigns you a US number, and requires a Google account.
The catch? Google Voice is designed for US-based users. If you're in the UK trying to call a US mobile, you'll pay per minute. Calling mobile numbers in countries like Nigeria or the Philippines isn't supported at all. It's a solid option for domestic US calling, but limited as a global solution.
For a broader look at how Google Voice stacks up, check out the GlobCall comparison page.
3. WhatsApp — Free App-to-App Only
WhatsApp has over 2 billion users, which makes it genuinely useful for calling contacts who already have it installed. Calls are free, clear, and work over Wi-Fi. That part is real.
But here's what most people miss: WhatsApp cannot call regular mobile numbers. If the person on the other end doesn't have the app, you're out of luck. It's an in-network system, not a replacement for actual phone calls. You also can't call landlines or toll-free numbers.
Great for family group chats. Not a Skype replacement for actual telephone calls.
4. Rebtel — Calls to Real Mobile Numbers via Local Routing
Rebtel is one of the few services that genuinely specialises in calling real mobile and landline numbers internationally. It works through a local routing system — instead of a standard VoIP call, it routes through local numbers to reduce cost and improve call quality.
Coverage is strong for Latin America, South Asia, and parts of Africa. Rates are competitive, and there's no app required if you use their browser option. The Rebtel alternative comparison on GlobCall breaks down exactly where it wins and where it falls short.
One limitation: some destinations require a subscription rather than pay-as-you-go. If you only call occasionally, that could mean paying for unused minutes.
5. Viber Out — Pay-Per-Minute Calls to Any Number
Viber has a feature called Viber Out that lets you call any phone number — mobile or landline — from within the app. You add credit, dial, and it works like a standard international call. No requirement for the other person to have Viber installed.
Rates vary by country. It's a legitimate option and works reliably in most markets. The app itself is free; you pay only for outgoing calls to non-Viber numbers.
The downside is that Viber's interface can feel cluttered, and customer support has a patchy reputation. For straightforward international mobile calls, though, it works. See also the GlobCall Viber alternatives page if you want to compare rates side by side.
6. Microsoft Teams Phone — Skype's Replacement for Paid Calling
When Skype shut down in May 2025, Microsoft migrated users to Teams. Teams itself is free for messaging and video calls between Teams users — but calling a real mobile number requires Teams Phone, which is a paid add-on.
Teams Phone gives you a proper phone number and PSTN calling capability, but it's tied to a Microsoft 365 subscription with per-seat pricing. That makes it expensive for small teams or individuals who just want to make the occasional international call.
For a detailed breakdown, the Teams Phone alternatives page is worth reading — especially if you're transitioning from a Skype setup and want to understand what you're actually paying for now.
7. Vonage — Strong Business Option, Pricier for Casual Use
Vonage connects to real mobile and landline numbers worldwide and has a long track record in business VoIP. It offers good call quality and broad country coverage. For businesses managing high call volumes, it's a reasonable choice.
That said, Vonage's pricing is built around monthly plans with per-seat fees. If you're an individual wanting to call a mobile number in India once a week, you'll likely overpay. The Vonage comparison on GlobCall shows how the true cost adds up versus pay-as-you-go alternatives.
8. Calling Cards and Prepaid VoIP Services
Old-school calling cards haven't disappeared — they've moved online. Services like Boss Revolution offer prepaid credit for international mobile calls at low per-minute rates, particularly for Latin America, South Asia, and parts of Africa.
No subscriptions. No seat fees. Just credit and a dial-out number. For someone who calls the Philippines or Nigeria regularly, this model can actually be cheaper than a monthly app subscription. The GlobCall FAQ on calling cards vs VoIP explains the trade-offs clearly, including where calling cards still have an edge in 2026.
Which of These Actually Call Mobile Numbers?
Let's be direct about this. Here's a quick breakdown:
| Service | Calls Real Mobiles? | Free or Paid? |
|---|---|---|
| GlobCall | ✅ Yes | Paid (from $0.02/min) |
| Google Voice | ✅ US/Canada only | Free (US), Paid (intl) |
| ❌ App-to-app only | Free | |
| Rebtel | ✅ Yes | Paid |
| Viber Out | ✅ Yes | Paid (credit-based) |
| Teams Phone | ✅ Yes | Paid (subscription) |
| Vonage | ✅ Yes | Paid (subscription) |
| Calling Cards | ✅ Yes | Paid (prepaid) |
The honest truth is that "free calls to mobiles" is mostly marketing. Every service that genuinely connects to the public phone network charges something — because terminating a call on a mobile network costs money. What varies is how much, and whether you're paying through a subscription or per minute.
Pay-as-you-go services like GlobCall work better for irregular callers. Monthly subscriptions make sense if you're making hundreds of minutes of calls each month.
Frequently Asked Questions
Can I call a mobile number for free internationally?
Genuinely free calls to real mobile numbers are rare. App-to-app calls (WhatsApp, FaceTime) are free but require both parties to use the app. Google Voice offers free calls to US mobiles from within the US. Everything else charges per-minute or through a subscription — rates start around $0.02/min for US numbers.
What replaced Skype for calling mobile numbers?
Skype shut down in May 2025. Microsoft Teams replaced it for messaging and video, but calling real mobile numbers requires the paid Teams Phone add-on. Alternatives like GlobCall, Viber Out, and Rebtel fill the gap more affordably for individuals and small teams.
Do I need an app to call international mobile numbers?
No. Browser-based VoIP services like GlobCall let you call international mobile numbers directly from Chrome or any modern browser — no download, no SIM, no installation. It's explained in detail in the how to call without a SIM card using Wi-Fi FAQ.
Which service has the lowest rates for calling India from abroad?
GlobCall charges $0.08/min to call Indian mobile numbers, which is competitive. Google Voice and Rebtel also offer India calling, though rates vary by destination. The cheapest way to call internationally FAQ compares the leading options directly.
Is Teams Phone worth it if I just need occasional international calls?
Probably not. Teams Phone requires a Microsoft 365 subscription plus a per-seat add-on fee, which is expensive for light use. A pay-as-you-go service like GlobCall makes more sense if you're calling mobile numbers internationally a few times a week rather than hundreds of times a month.
The Bottom Line
Here's what to take away from all this:
- WhatsApp and FaceTime are free but only reach app users — not real mobile numbers
- Google Voice works well for US-to-US mobile calls, but international coverage is thin
- GlobCall, Rebtel, and Viber Out all connect to real mobile numbers worldwide on a pay-as-you-go basis
- Vonage and Teams Phone are subscription-based and better suited to businesses with consistent high call volumes
- Calling cards and prepaid VoIP remain surprisingly competitive for specific corridors like India, Nigeria, and the Philippines
The right choice depends on how often you call, which countries you need, and whether you want a subscription or pay-as-you-go. For most people replacing Skype in 2026, pay-as-you-go wins.
Ready to make your first call? Start calling mobile numbers from your browser at GlobCall — no download, no commitment, and rates from $0.02 per minute.
