Office 2021 vs Office 2024 – Which Version Is Worth It?

Oldie but goodie or AI and cloud? With the release of Microsoft Office 2024, many users are wondering whether upgrading from Office 2021 to the new version actually makes sense.

To make your decision as straightforward as possible, this blog post takes a closer look at the pros and cons of Office 2021 vs Office 2024, providing the clarity needed to make an informed choice.

The direct comparison

Before taking a closer look at the details, here is an overview of the key differences between Office 2021 and Office 2024:

In short: while Office 2021 focuses on proven features and traditional use, Office 2024 introduces initial AI-assisted capabilities and improved integration with cloud services — while still remaining a classic one-time purchase rather than a subscription.

Office 2024: What’s new?

With Office 2024, Microsoft has released a modernised version of its proven Office suite — and, unusually by today’s standards, entirely without a subscription requirement. Compared to Office 2021, the new version delivers a number of noticeable improvements, particularly in terms of usability, performance and collaboration.

Improved performance and a modernised user interface

Office 2024 runs noticeably more smoothly — especially on modern systems with Windows 11 or the latest macOS version. Visually, the changes are more subtle, with the interface refined and aligned with current design standards.

AI-powered and intelligent features

Arguably the most significant innovation: for the first time, Microsoft is bringing AI-assisted capabilities such as Copilot to a classic one-time purchase version. In Word and Excel, intelligent suggestions now help simplify everyday tasks — from text formatting and grammar checks to data analysis and chart creation.

Improved cloud integration

Cloud connectivity has been significantly enhanced. Documents can be saved directly to OneDrive, accessed more easily and edited collaboratively in real time — although with some limitations compared to Microsoft 365 (for example, a lower number of supported users).

Compatibility and file formats

Office 2024 supports the latest file formats and is fully compatible with Microsoft 365 and earlier Office versions. PDF export has also been improved.

The strengths of Office 2021

Even though Office 2024 reflects the latest developments, Office 2021 remains an attractive option — especially for those who prefer a proven, stable system without reliance on cloud services.

Classic licensing model with full control

Like Office 2024, Office 2021 is based on a transparent one-time licensing model — entirely without a subscription.

Local use without mandatory cloud services

Office 2021 can be used entirely offline, making it a strong choice for data-sensitive environments or situations with limited internet connectivity.

High compatibility and system efficiency

Office 2021 runs on Windows 10 and 11 as well as on older macOS versions, making it ideal for existing IT infrastructures.

Proven features for everyday use

Reliable features without unnecessary extras — what more could you ask for?

Which version is right for which users?

Private users and self-employed professionals

For users with traditional requirements, Office 2021 is usually sufficient. Those who value modern features, cloud-based workflows and regular collaboration on shared documents will benefit more from Office 2024.

Small and medium-sized enterprises (KMUs/SMEs)

Office 2021 is stable and cost-efficient – ideal for well-established systems. Those who want to keep their way of working fully up to date, or who are currently modernising their IT environment, should consider Office 2024.

Education and public sector organisations

Here, Office 2021 stands out with predictable licensing. However, depending on special conditions, Office 2024 may be the preferred option.

Prices and licensing models compared

Let’s move on to one of the most important questions: how much does it cost, and what’s included?

The price

The prices of Office 2021 and Office 2024 for new licences vary significantly depending on the edition (Home approx. €149, Home and Business approx. €200, Standard approx. €500, and Professional Plus around €700).

As pre-owned licences, these can be purchased from Software ReUse at savings of up to 60% — with no loss of functionality.

Licence coverage and available editions

Both versions are available as Home & Student, Home & Business, Standard and Professional Plus, each with different usage rights.

Support

A key difference lies in the duration of Microsoft support for each Office version. Office 2021 will continue to receive security updates only until October 2026. Office 2024, by contrast, benefits from a longer support lifecycle from Microsoft.

Office 2021 or Office 2024? Our conclusion

Compared to Office 2021, the more modern Office 2024 offers clear advantages — though not necessarily for everyone:

Office 2021 is ideal for users who prioritise stability, offline use and strong value for money.
Office 2024 stands out with AI-powered features, modern cloud integration and improved performance — especially on up-to-date hardware.

As so often, the right choice ultimately depends on individual requirements.