Alternatives

Products that do what Callzo does

Your backup call line abroad. No SIM, just open and call.

1. 1
   Calloza▲11

   Global phone always with you, just open browser

   Apr 2026 · calloza.com

2. 2
   Tascom▲274

   Virtual phone numbers, travel eSIMs & international calling

   2023

3. 3
   Callana▲3

   Call any phone worldwide from your browser. No app, no SIM

   Apr 2026 · callana.app

4. 4
   Roamless▲169

   Global eSIM for travelers in over 180 countries

   2024

5. 5
   ZippCall▲136

   Cheap international calls online

   Oct 2025

6. 6
   Yadaphone▲166

   In-browser international calls at low rates

   2025

7. 7
   StartACall▲11

   Make international calls from browser | cheap calling online

   Nov 2025

8. 8
   Calltuv▲20

   Cheap international calls straight from your browser.

   Dec 2025 · calltuv.com

9. 9
   Phone Call Translator▲364

   Translates your voice calls into 29 languages in real-time

   2020

10. 10
    usnumber.site▲182

    Get a US phone number in seconds

    2016

11. 11
    ZippCall▲110

    Cheap international calls in your web-browser

    2025

12. 12
    Simcardo▲7

    Global eSIM in 2 minutes. No roaming. No SIM swapping.

    Nov 2025 · simcardo.com

13. 13
    Dialo (Skype Alternative)▲12

    Call anyone, anytime without expensive subscription

    Nov 2025

14. 14
    Calliva▲2

    Call any country from your browser. No app. No hassle.

    Feb 2026 · calliva.app

15. 15
    Ringvoo — Affordable Global Calling▲2

    Call 180+ countries instantly from your browser

    Jun 2026 · ringvoo.com

16. 16
    CallSpark▲9

    Affordable International Calls Straight From Browser

    Nov 2025 · callspark.app

17. 17
    JetCaller▲4

    Make international calls directly from your browser

    Feb 2026 · jetcaller.com

18. 18
    esimoa — Travel eSIM, Calls & VPN▲2

    eSIM, calls & VPN for travelers — all in one app

    May 2026 · esimoa.com

19. 19IB
    I built a Switchless eSIM that works in 200 locations and regions▲17

    Hello HN, A year ago, I started the journey to create what we call a Switchless eSIM for travelers. The problem we’re solving comes from first-hand experience with accessing data while traveling overseas. The old methods like swapping SIMs, paying high roaming fees, or relying on WiFi are inconvenient and costly. Our solution is a single eSIM that you install once, then buy data for any country you travel to, and get connected instantly. Our app will be live in the next few days (hopefully), so for now, it’s just web. I would love to know if you’ve used eSIMs when travelling overseas and…

    2024 · truely.com

20. 20
    dasfone▲3

    Cheapest international calls go mobile on iOS and Android!

    Jun 2026 · dasfone.com

21. 21
    TeloSim▲9

    Instant global eSIMs for travel, work, and life 🌍

    Nov 2025

22. 22
    OpenDial

    Cheap international calls directly from your browser

    Mar 2026 · opendial.io

23. 23IM
    I made an International calling app after Skype shutdown ($0.01/min)▲6

    I built CallSky as a simple alternative for international calling after Microsoft shut down Skype earlier this month. The app lets you make calls to landlines and cell phones worldwide starting at $0.01/minute with a pay-as-you-go model. I noticed that while Teams replaced Skype's video/chat conferencing, it doesn't offer the same affordable PSTN calling that many people relied on. WhatsApp and other messaging apps don't solve this - whether you're an expat calling the IRS for taxes, reaching elderly family members who don't use smartphones, or contacting people in areas with…

    2025 · callsky.io

24. 24
    PuchiDen▲16

    International calls from your browser. No app, no account.

    Jun 2026 · puchiden.app

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