How Kalum works
Three steps to call anyone, anywhere — even when they have no internet and no smartphone.
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Sign up with your phone number
Open Kalum, type your number, and enter the verification code you receive by SMS. No email, no password to remember. Your account is created in under a minute.
Your phone number is how you log in. We use it for verification only.
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Add $2.99 in credit
Top up through the App Store on iPhone or with any debit or credit card on Android. Start with $2.99 to test the connection to your destination country, then add more whenever you want. Pay-as-you-go, no monthly fees, no contracts.
Your credit never expires. Whatever you add stays on your account.
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Dial like any phone
Pick the country code, type the number, and hit call. The person you're calling answers their regular phone — landline or mobile, smartphone or feature phone, anywhere in the world. They don't need Kalum.
See the per-minute rate before you dial. No surprises.
Frequently asked questions
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Do I need internet to call?
Yes — on your end. The recipient does not. Kalum uses your data connection to start the call, then routes through real phone networks worldwide. The person you call answers on their regular phone like any other call.
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Does the person I call need the app?
No. They just answer their phone. Kalum works with any landline or mobile number, even old feature phones with no internet. You don't need to convince anyone to download anything.
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How are calls billed?
Per minute, with a 60-second minimum. Calls round up to the next full minute. You can see the exact per-minute rate for any country before you dial. No connection fees, no hidden charges.
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Does my credit expire?
Never. Credit you add stays on your account until you use it. There are no monthly fees, no minimum balance, and no contracts.
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Which countries can I call?
Over 180 destinations worldwide — landlines and mobiles across Africa, the Americas, Asia, Europe, and the Middle East. You can see the exact per-minute rate for any country before you dial.
Ready to make your first call?
Available on iPhone and Android.
