Spam calls in Nigeria have become a daily nuisance — from fake bank alerts to prize scams to unknown international numbers. These 9 apps identify, block, and filter spam calls and messages before they reach you. Most are completely free.
⚠️ Scam Alert
Common Nigerian Phone Scams in 2026
Fake bank alerts · “You’ve won a prize” calls · Investment returns · One-ring calls from +1, +44 numbers designed to get you to call back
1. Truecaller — The #1 Choice in Nigeria
Truecaller is the most used caller ID and spam blocking app in Nigeria with good reason — it has the largest database of identified numbers on the continent. When an unknown number calls, Truecaller tells you if it has been reported as spam by other users. Block with one tap. Free on Android and iPhone.
2. Hiya
Hiya is Truecaller’s strongest competitor globally. It identifies spam callers in real time before you even pick up. Works natively with the phone app on Samsung devices. Strong database of scam numbers from across Africa and internationally.
3. CallApp
CallApp combines caller ID, spam blocking, and a full call recorder in one free app. The spam database is community-updated. Also shows you LinkedIn profiles and social accounts of callers when available — useful for knowing who is really calling.
4. Whoscall
Whoscall has a particularly strong database for Nigerian and West African numbers. It works offline after downloading its number database — so it identifies spam calls even when you have no internet. One of the few apps that does this.
5. Google Phone App (Pixel & Some Android)
Google’s built-in phone app on Pixel and many Android devices has a “Screen Call” feature where Google Assistant answers the call first and transcribes what the caller says in real time. You read the transcript and decide whether to pick up. Completely free — no download needed if your phone already has it.
6. Mr. Number
Mr. Number lets you block entire area codes, country codes, or any number pattern you choose. If you keep getting calls from a specific +234 prefix that you know is a scam operation, block the entire range. More granular control than most apps.
7. Robokiller
Robokiller uses AI to answer spam calls automatically and waste the scammer’s time with pre-recorded audio. Meanwhile you never hear the call. Free trial, then paid — worth it if spam calls are severely disrupting your day.
8. YouMail
YouMail replaces your voicemail and blocks spam at the voicemail level. It plays a “this number is disconnected” message to spam callers, which gets your number removed from scam lists automatically. Free plan covers the essentials.
9. Your Network’s Built-In Blocker
MTN, Airtel, Glo, and 9mobile all have USSD codes and settings to block specific numbers directly at network level — no app required. Dial *21# or contact your network’s customer service to activate call blocking features. This works even on basic phones.
FAQs
Will blocking spam calls affect my normal calls?
No. These apps only block numbers identified as spam. You can always whitelist specific numbers to ensure they always get through.
Can I report a spam number?
Yes — Truecaller, Hiya, and CallApp all allow you to mark a number as spam after receiving a call. Your report helps protect other users.
What about SMS spam?
Most of these apps also filter spam SMS. For SMS specifically, your Android Messages app has a built-in spam filter under Settings → Spam Protection that is worth enabling.