Microsoft Outlook vs Kiwi for Gmail

Gmail

Google Workspace

Microsoft 365

Gmail is a free, advertising-supported email service offered as part of Google Workspace (formerly G Suite), with 15GB of storage, color-coded inbox filters, and 'unsend' button

Google Workspace is a suite of applications from Google which offers a number of tools to communicate and collaborate with colleagues, store files, and manage data from all devices.

Microsoft 365, formerly Office 365, provides web, desktop, and mobile apps for Outlook, Word, Excel, PowerPoint, OneNote, Publisher, Skype, OneDrive, Exchange Online, and more

Microsoft Outlook is a personal information manager from Microsoft which helps users communicate, manage schedules & find what they need quickly & easily

Archiving & Retention

Collaboration Tools

Contact Management

Customizable Templates

Email Monitoring

Email Templates

Inbox Management

Mobile App

Prioritization

Response Management

Search/Filter

Reviews for Microsoft Outlook come from a wide variety of industries, including Information Technology and Services (10% of reviewers), Computer Software (5%), and Hospital & Health Care (4%). The most frequent use case for Microsoft Outlook cited by reviewers is email management (100% of reviewers).

Users and use cases

Reviewers appreciate Outlook’s value when bundled with Office 365 or provided through institutional licenses, and some users say the range of pricing plans suits various needs. However, some reviewers find the pricing high compared to free alternatives, and they feel ongoing subscriptions and complex pricing structures can be costly, especially for small businesses.

Value for money

The Microsoft Outlook integrations most frequently cited by reviewers are: Microsoft 365 (a document management product rated 4.6 out of 5 for its integration with Microsoft Outlook), Microsoft Teams (a meeting product, 4.8), and OneDrive (a cloud storage product, 4.5).

Integrations

Microsoft Outlook is an email management tool with key features that include inbox management, search and filter capabilities, email monitoring, contact management, response management, archiving and retention, and more.

Microsoft Outlook

Web-based

Android

Windows

iPhone

iPad

Thunderbird

Yahoo Mail

Zoho Mail

mail.com

Mailchimp

eM Client

BlueMail

Benchmark Email

Boomerang for Gmail

Front

MailerLite

HubSpot Sales Hub

Missive

Basic

Inconsistent spam and junk filtering

patient services rep

Receive a lot of spam using this email platform even after you designate certain messages as spam and request not to receive messages.  

65% of reviewers feel negative about Outlook’s spam filtering. Reviewers report that the spam filter often misclassifies legitimate emails as junk and fails to block obvious spam or phishing messages. They say important communications can be missed due to overactive filters, while unwanted emails still reach the inbox. Users mention difficulties in managing spam settings, unsubscribing from persistent senders, and controlling which messages are flagged. Many find the filtering system cumbersome and not intuitive, which can lead to missed opportunities or security concerns.

Unreliable and complex search tools

Digital Marketing Specialist

The awful search functionality and the usual  awkward formatting issues that you get with all Microsoft software (delete/paste one thing and everything moves/gets destroyed like an earthquake has struck).

Good, but frustrating 

Again, they need to fix the search feature since it always seems to be missing something.

57% of reviewers feel negative about Outlook’s search functionality. Reviewers indicate that the search feature is frequently inaccurate, slow, or overly complicated. They say it often returns irrelevant results or misses messages that should match the search criteria. Users mention that the interface for filtering and refining searches is confusing, and advanced search options are hard to access. Many find the search experience less effective compared to other email platforms, leading to wasted time and difficulty retrieving needed information from their inbox.

Sluggish performance with large data

Database Administrator

Issues with performance, Sometimes, Outlook can be slow to start or become sluggish, mostly when handling a large volume of emails.

Head of IT Infrastructure

The Shared Mailbox experience could be improved, it is common to see Outlook become non-responsive when switching between shared mailboxes, even on high end computers and gigabit internet.

80% of reviewers feel negative about Outlook’s performance and speed. Reviewers report that Outlook can be slow to start, laggy when handling large mailboxes, and sometimes unresponsive during key tasks like searching or syncing. They mention that the application consumes significant system resources, especially on older computers or mobile devices. Users say delays in loading emails, sending messages, or switching between accounts can hinder productivity. Many find that performance issues are more pronounced with shared mailboxes, large attachments, or when using plugins, causing frustration during busy workdays.

Inefficient email search experience

Merchandise Planner (Kids girls wear)

Sometimes when I try to search for mails by names or specific words, it is stucked and couldnt get any results and it needs to restart the program.

Engineer

One the most challenging task is to sort through old emails as there is no easy way to look up and the search tool is not that great.

58% of reviewers feel negative about Outlook’s email search functionality. Reviewers say searching for specific emails, attachments, or older messages is often slow, inaccurate, or incomplete. They mention that the search tool struggles with large mailboxes, nested conversations, and archived emails, sometimes failing to return relevant results. Users report that filters and keywords do not always work as expected, requiring manual browsing through folders. Many express frustration with the lack of intuitive search options, which can make finding important information time-consuming and difficult.

Frequent crashes and glitches

developer

Performance Issues: Outlook can sometimes be slow to load, and some users have reported issues with crashes or freezes.

Dist software engg

sometimes the outlook crashes and then restarts when dealing with thousands of emails.

67% of reviewers feel negative about Outlook’s stability due to bugs and issues. Reviewers indicate that the software is prone to crashes, freezes, and unexpected shutdowns, especially when managing multiple accounts or large volumes of emails. They mention recurring problems with corrupted files, login errors, and memory-heavy processes that require frequent restarts. Users say technical glitches disrupt workflow and can complicate communication, with some noting that support for resolving these issues is often slow or unhelpful. Many find these reliability problems particularly disruptive in professional settings.

Essential for daily organization

Virtual High School Special Education Teacher

It works seamlessly with all of the Microsoft product and saves me time every single dayS

Sr procurement specialist 

It helps me get through my workday very well and helps me stay organized.

100% of reviewers feel positive about Outlook’s role in daily use. Reviewers say Outlook is indispensable for managing emails, schedules, and tasks, helping them stay organized and productive every day. They appreciate its ease of use, seamless integration with other Microsoft products, and ability to centralize daily work activities. Users mention that Outlook streamlines their workflow, supports routine business operations, and makes it easy to keep track of important communications and appointments. Many consider it a necessary tool for both personal and professional routines.

Comprehensive professional productivity

Project Manager

At its core, Outlook is able to achieve this and is considered a critical software for my role and our organization.

Research Assistant

It is very much business/professional orientated and presents its tools for ease of use in a professional setting.

96% of reviewers feel positive about Outlook’s suitability for professional use. Users say Outlook is a core tool in their workplace, helping them stay organized and collaborate efficiently. They value its integration with other Microsoft Office products, which supports document sharing and teamwork. Reviewers appreciate the platform’s ability to manage schedules, emails, and tasks, which they find crucial for maintaining productivity and professionalism. Many mention that Outlook’s widespread adoption in corporate environments makes it a familiar and reliable choice for managing daily business operations.

Centralized business communication hub

Trainer

This is one amazing solution without which I won't be able to be productive and efficient great tools and solution that fulfills my personal and professional needs for communication.

91% of reviewers feel positive about Outlook’s communication capabilities. Reviewers indicate that Outlook is essential for both internal and external business correspondence, citing its reliability and integration with Microsoft Teams and Skype for seamless messaging. They appreciate the ability to organize conversations, manage client and colleague interactions, and maintain secure communications. Users say features like threaded conversations, file sharing, and group messaging make daily work smoother. Many highlight that Outlook supports large organizations by enabling consistent, documented, and professional communication across teams and departments.

Robust Microsoft ecosystem integration

Adminsitrative assistant

As part of the Microsoft Office Suite, Outlook seamlessly integrates with other applications like Word, Excel, and PowerPoint.

IT Assistant

What I like most about Outlook is the integration it has with Microsoft's other services, especially with Microsoft's office applications, which is widely used by millions of users.

94% of reviewers feel positive about Outlook’s integrations. Reviewers appreciate how Outlook connects seamlessly with Microsoft Office applications like Word, Excel, PowerPoint, and Teams, allowing for efficient document sharing and collaboration. They mention that integration with third-party tools and add-ins enhances productivity and convenience. Users say this interconnectedness simplifies daily tasks, enables automation, and supports a unified workflow across different platforms. Many highlight that Outlook’s compatibility with both Microsoft and select non-Microsoft services is a significant advantage for businesses using diverse software tools.

Efficient meeting coordination tools

Knowledge Transfer Specialist 

The key aspect that brings me back to Outlook over other often cheaper options is the way the calendar, meeting invites, and email account links up so that teams can easily share schedules etc.

94% of reviewers feel positive about Outlook’s meeting scheduling features. Reviewers appreciate how the calendar syncs with email and contacts, allowing them to easily organize meetings, check colleagues’ availability, and book rooms. They say the integration with Microsoft Teams and other conferencing tools streamlines setting up virtual meetings. Users find the reminders, color-coding, and automated scheduling options help prevent conflicts and keep everyone on track. Many mention that being able to manage appointments, tasks, and invitations from one place saves time and boosts productivity in both individual and team settings.

Director

It is a dependable email and calendar solution that works particularly well in professional environments. Once you get used to the layout and features, it becomes a powerful tool for managing emails, meetings, and daily tasks efficiently.

Analyst

Its integration with other Microsoft apps streamlines daily communication, scheduling, and team coordination. While it can feel heavy on slower devices and large mailboxes sometimes sync slowly, the overall experience is smooth, secure, and efficient for both personal and business use.

App Developer

I liked Outlook’s unified inbox, strong calendar integration, and reliable email organization—making scheduling, reminders, and communication easy across work and personal accounts.

Form being able to cateorize and create folders where your emails are sent to being able to use the calendar to book meetings

Overall it is better than gmail for work, because there can lot of back and fourth in work emails and Gmail is very bad if you're going through a big long thread of email, Gmail will confuse which email came befor which one while in outlook it is very organised where the thread emails shows up in sequence of the time it came in your inbox.

I like Microsoft outlook as my work email , i find it better than gmail for work purpose also with the way Teams has improved in the past , you dont have to rely on external tools for collaboration so microsoft outlook package is great.

Curriculum Designer and Trainer

Overall outlook is a powerful e-mail tool that responds to how you read your emails and it gives you the ability to customize your in box.

Lash artist

The most that i like about Mivrosoft Outlook is that im able to send and receive email messages, manage my calendar, store names and numbers  of my contacts and clients and i can track your tasks.

Professional Development Lead

I wish my Microsoft Outlook has a larger storage capacity. Since it also hides some of the older emails, sometimes those gets lost or forgotten when I didn't get a chance to delete it.

Paralegal

My favorite feature of Microsoft Outlook is it's ability to integrate seamlessly into the software my law firm uses which makes my job infinitely more manageable.

Administrator

The interface can feel cluttered and less intuitive than some newer email platforms, and performance can lag when managing large mailboxes.

I enjoy using it daily to keep all of my files in order and I enjoy all of the tools that I am able to use.

It has slow performance when my inboxes get too full and it does have strange navigation and synchronization issues

Insight Manager

great for organisation everything - the way it links to PPT, Word, Excel etc. is great to sending work to colleagues and getting / sending notification when comments or changes are made.

Systems Analyst Trainee

It's seamless when scheduling meetings within the dept and the color-coded calendar makes for easy understanding with everyone's busy schedules.

Instructional Designer

I like the integration with Microsoft 365 and its tools, including calendar, contact management, and tasks.

Sales Manager

Microsoft Outlook helps with all my work documents that are sent through Microsoft teams and to my email to keep them all in one spot.

Microsoft outlook has been around for a while and everytime, it does not cease to improve my work in terms of operability, connectivity, collaboration, and efficiency in all.

Safety Manager

Microsoft Outlook helps keep me on task through its important emails, calendar, and frequent reminders.

Meta Ads Specialist

However PST files love to corrupt, search crawls when mailbox is huge, and too many panes (people, todo, feed) clutter the screen, so clarity drops when you’re sprinting through emails

Student

It helps me manage emails, meetings, and tasks in one place, which improves productivity.

Outlook is reliable and feature-rich for email and calendar, but can feel slow and complex, especially when managing many messages and settings.

Teaching Assistant

The layout of the Outlook mail app and website is great, it is highly customizable, in terms of the theme as well as any signatures that you might want to add.

Event Planner

It’s also quick to set up recurring client calls and internal check ins and you can simply attach documents to calendar invites to remain in context.

Projects Manager

The calendar is essential and setting up signatures for different users and out of office messages save a lot of time.

Outlook is one of my staple e-mail apps, I use it daily and feel microsoft has made several great changes to make the overall user experiecne better than the legacy outlook application that had reached end of life before being replaced.

It's ability to integrate into other software, to create rules, away messages, and the personalization features are unmatched.

IT Service Desk Analyst

Microsoft Outlook is also a great way to effectively collaborate with a team, whether that's communicating via email, or arranging meetings with each other to discuss things further.

Intake Coordinator

Email and calendar management are very well integrated, making it easy to keep track of meetings, deadlines, and important conversations.

Search occasionally misses recent emails, and too many settings/options make it less beginner-friendly compared to simpler email apps.

I can drag mails to tasks, schedule meetings right there, and the calendar pops reminders that actually show up on time

Sales Development Rep

The ability to schedule meetings, set reminders, and manage communications all in one place significantly boosts productivity.

System Admin I

Cluttered interface, slow performance, unreliable notifications, and missing features like offline message saving or advanced rule customization

Credit Specialist

I can use it for email, to manage my schedule, keep track of documents and creating agendas.

Loan servicing representative

The con on Microsoft Outlook is a large file can take forever and cause delays .Outlook also can freeze at times.

Marketing

It’s not the flashiest email client, but its stability, integration with Microsoft 365, and comprehensive feature set make it hard to beat for business use.

shipping and receiving

The thing I like the most when I am using Microsoft Outlook is the fact that I can do so many different customizations to my liking.

I like the ability to customize the interface so that you are not always staring at a blank white or gray screen.

The interface can sometimes feel a bit cluttered compared to simpler email platforms, and it can take time to learn all of the features.

Pharmacist

I use Outlook at different job sites across the province and it feels familiar and seems to be faster and is easier to log in and just access messages than Gmail

There is a lot of customisation, which is great to some degree, but at the same time I need to use three different email addresses per day.

Auditor

Microsoft outlook is a very effective tool, the calendar feature is brilliant to keep track of meetings and planning.

It helps me daily to track all my meetings and gets updated in real time.

My only gripe is that if I am deleting an email from my inbox at the same time a new message appears, often times the new email gets deleted instead of the email

Legal Case Manager Assistant

I love the options on how I'm able to differentiate my availability during the times set on my calendar.

Microsoft Outlook is reliable for managing emails, calendars, and tasks all in one place.

The only reason we have yet to change our provider is the time off-line we would need to make the shift. While, there is value in the cost of the product - it has very little real value.

Operations Manager

It gives me access to my calendar and my meetings in Teams.

Sr MEP Project Manager

Syncing with home email or Mobil phone is awesome  and you feel like your in the same box each time picking up your email as if you are still at you office pc or you home office.

Technician

It has a lot of features (I use a few, the search, the rules, the calendar and just an addon) and if a need support I easily find my answer on internet (of course you can contact Microsoft Support).

Microsoft Outlook vs Kiwi for Gmail Comparison (2026)

Microsoft Outlook

Kiwi for Gmail

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives