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Truecaller vs Microsoft Defender for Office 365 Comparison (2026)

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Truecaller

Microsoft Defender for Office 365

Overview

TrueCaller is a robust spam blocking solution designed to identify unknown numbers, block numbers from telemarketers and robocallers, and centralize all SMS/calls in one platform. TrueCaller includes call blocking, intelligent dialer, call recording, caller identification, integrated Chat/SMS capabilities, and a spam-free inbox.

Microsoft Defender for Office 365 is a cloud-based email security software designed to help businesses automatically detect, investigate, and resolve potential email threats on a centralized platform. Supervisors can configure security policies, perform spoof checks, and maintain a record of reported incidents.

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Platforms supported

Web-based
iPhone app
Android app
Windows Phone app

Typical customers

Freelancers
Small businesses
Mid size businesses
Large enterprises

Customer support

Phone
Online
Knowledge base
Video tutorials

view more detailsview details

Video & Screenshots

Pricing

Starting from

SEK

2.99

Per month

Free trial available
Credit cardless trial
Free account
Subscription based

Starting from

No pricing info

Free trial available
Credit cardless trial
Free account
Subscription based

User reviews

4.4

Value for money

Ease of use

Features

Customer support

85%

would recommend this app

4.6

243

158

Value for money

Ease of use

Features

Customer support

76%

would recommend this app

Pros

“Truecaller is a creative solution that lets you use Caller ID and filter spam calls, but it requires extreme caution to prevent privacy invasion.”

Atul D.

Review

“Truecaller is the best app for know about unknown people as well as the incoming call is whether it is important or fraud or spam.”

Vihar T.

Sub-Editor

“Even though I hate ads popping up every time I open it, it's good overall, especially for identifying and blocking spam calls.”

Shiv S.

Founder

Pros

“Features such as Safe Links and Safe Attachments add an extra layer of protection without significantly impacting user productivity.”

Swetha C.

Technical Program Mananger

“The platform also integrates well with other Microsoft security products, making it a strong choice for organisations already invested in Microsoft 365.”

Josh D.

IT Support Engineer

“For people who rely heavily on email for advocacy, school, benefits, medical care, and family communication, security matters.”

Michelle C.

CEO

Cons

“The TrueCaller app seems to be forcing the users to migrate their inbox (SMS) to TrueCaller inbox. Because every time the app is opened it asks if I want to switch to their inbox. If I don't want and skip it doesn't record it.”