Microsoft Outlook vs. OAS (Outlook Assistant Suite) Comparison


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About Microsoft Outlook is the all-in-one email, calendar, and contact management platform designed to keep you organized and connected across your digital life. With Outlook, you can manage multiple accounts—including Gmail, Yahoo, and iCloud—within one unified inbox. Intelligent scheduling tools and shared calendars help you stay on top of meetings, events, and personal reminders. The built-in Microsoft Copilot assists with writing emails, summarizing long threads, and managing tasks to boost productivity. Outlook also offers enterprise-grade security, filtering out spam, phishing, and malware to keep your data safe. Whether on desktop, mobile, or web, Outlook helps you manage communication and time with clarity and confidence.	About OAS – Outlook Assistant Suite is a productivity add-in for classic Microsoft Outlook on Windows. It brings several email management tools together in one clear application and is designed to reduce repetitive work and make Outlook easier to organise. Inbox Cleanup helps analyse and clean up your mailbox using configurable rules. Archive provides tools for organising and archiving email. Follow Up helps keep track of messages that still require action or are awaiting a reply. Rule Management provides a clear way to create and manage Outlook rules. OAS supports Dutch, English, German, French, Spanish, Italian and Portuguese. The software includes a fully functional 14-day free trial and is available with either an annual or lifetime licence. The Windows installer is digitally signed. OAS does not collect usage telemetry about how users work with OAS, Outlook, their email or their folders.
Platforms Supported Windows Supported Mac Supported Linux Not Supported Cloud Supported On-Premises Not Supported iPhone Supported iPad Supported Android Supported Chromebook Not Supported	Platforms Supported Windows Supported Mac Not Supported Linux Not Supported Cloud Not Supported On-Premises Not Supported iPhone Not Supported iPad Not Supported Android Not Supported Chromebook Not Supported
Audience Professionals, teams, and individuals who need a secure, AI-powered platform to manage emails, calendars, and tasks across devices while staying organized and connected	Audience Microsoft Outlook users, professionals and small businesses that want to organise and manage email more efficiently.
Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported	Support Phone Support Not Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos No images available
Pricing No information available. Free Version Supported Free Trial Not Supported	Pricing 19,95 Free Version Not Supported Free Trial Supported
Reviews/Ratings Overall 4.7 / 5 ease 4.7 / 5 features 4.8 / 5 design 4.7 / 5 support 4.4 / 5 Read all reviews	Reviews/Ratings Overall 0.0 / 5 ease 0.0 / 5 features 0.0 / 5 design 0.0 / 5 support 0.0 / 5 This software hasn't been reviewed yet. Be the first to provide a review: Review this Software
Pros & Cons from Real Users Pros Amazing integration with Microsoft office apps & services. Calendar sharing & scheduling capabilities for collaboration. The best part is its integration with other Microsoft applications, due to this function the workflow becomes very smooth. There are a lot of Pros some of them are its email management options like advanced filters, email categorization, sync with other Microsoft tools like Microsoft teams, Calendar & scheduling. Also its user friendly which is a great thing for new users & there are a plenty of tools embedded which helps you customize & manage your emails. It integrates seamlessly with other Microsoft products, has computer, mobile, and web versions that all work well, and is a great option for work email. I have especially been a fan of the Zoom integration! It's easy to use and does everything I need to (and then some) for my job. I've utilized outlook for years throughout multiple roles within the same company. It is a great hub for everything including emails, integrating with other Microsoft tools, and is visually very easy to navigate. Cons Interface can be cluttered & overwhelming for basic email needs. Lack of automation & CRM features compared to other business email tools. The only thing i feel as a con is its interface seems a bit outdated, as compared to its competitors. We frequently see a delay in updating our email box, apart from that Microsoft Outlook seems a perfect tools for professional collaboration & communication. I honestly do not have a major con. The only thing I can think of is that the layout of where features are varies depending on what device I am using, so it can be difficult to find certain things. However, this is really minor! I haven't found a way to integrate Gmail and Outlook features that I like in tandem, but it could just be user error.
Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Not Supported	Training Documentation Not Supported Webinars Not Supported Live Online Not Supported In Person Not Supported
Company Information Microsoft Founded: 1975 United States www.microsoft.com/en-us/microsoft-365/outlook/email-and-calendar-software-microsoft-outlook	Company Information Innosterex Netherlands outlookassistant.nl/en/
Alternatives Google Workspace Google	Alternatives No Alternatives
Proton Mail Proton AG
eM Client
BlackBerry Hub+ BlackBerry
Microsoft 365 Microsoft View All	View All
Categories Calendar Supported Contact Management Supported Email Clients Supported Email Management Supported Remote Work Supported	Categories Email Management Supported
Email Management Features Data Recovery Not Supported Email Archiving Supported Email Deletion Not Supported Email Discovery Not Supported Email Monitoring Not Supported Email Recall Not Supported Queue Manager Not Supported Response Management Supported Routing Supported Shared Inboxes Supported Signature Management Supported Spam Blocker Supported Whitelisting / Blacklisting Supported Show More Features Contact Management Features Activity Management Not Supported Appointment Management Not Supported Contact Database Supported Contact History Supported Contact Import/Export Supported Customer Pipeline Not Supported Email Marketing Not Supported Group Management Not Supported Interaction Tracking Not Supported Lead Management Not Supported Prospecting Tools Not Supported Sales Pipeline Management Not Supported Search / Filter Supported Segmentation Not Supported Shared Contacts Supported Social Media Integration Not Supported
Integrations AgilQuest Supported AscendixRE Supported Athena Archiver Supported Coworker.ai Supported EBS PaySuite Supported Exelare Supported Favro Supported FortiIsolator Supported Franz Supported GLIDEPARCS Supported GoCRM Supported Harvest Supported Hibox Scheduler Supported Microsoft Graph Supported Rooster Supported Upfluence Supported Virtual Front Desk Supported Zendesk Sunshine Supported awork Supported noCRM.io Supported Show More Integrations View All 2645 Integrations	Integrations AgilQuest Not Supported AscendixRE Not Supported Athena Archiver Not Supported Coworker.ai Not Supported EBS PaySuite Not Supported Exelare Not Supported Favro Not Supported FortiIsolator Not Supported Franz Not Supported GLIDEPARCS Not Supported GoCRM Not Supported Harvest Not Supported Hibox Scheduler Not Supported Microsoft Graph Not Supported Rooster Not Supported Upfluence Not Supported Virtual Front Desk Not Supported Zendesk Sunshine Not Supported awork Not Supported noCRM.io Not Supported Show More Integrations View All 1 Integration
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