TreeSize Subscription Shift Irks Perpetual Users

TreeSize users face a subscription mandate

TreeSize users with perpetual licenses are confronting a new reality. Their maintenance periods are expiring. But vendors are aggressively pushing toward recurring revenue models that fundamentally change the old one-time purchase system, and for those used to paying once, this marks a major shift that alters how they get updates and support. The software still functions. However, the path forward for maintaining its relevance now requires a subscription.

The mechanics of the shift

Since the start of 2025, the organization behind this disk space analyzer has been moving most editions of the software to a subscription-based framework, and perpetual licenses are now reserved for personal use only. These personal licenses include a 12-month window for updates and support, along with access to installers and license keys. But once that year concludes, the ability to receive further updates or technical assistance vanishes unless the user opts into a subscription. It's a major shift.

Long-term owners feel the friction. If a user doesn't renew through a subscription, they lose the ability to download the software or receive key updates, and this has sparked pointed criticism from segments of the user base who feel that a purchase should equate to permanent access to the installation files for the version they paid for. But it's a growing frustration.

Understanding the business rationale

Hendrik Christ, product manager, maintains that these changes are necessary given the current economic climate, and the company argues that the subscription model provides the predictability required to keep the software well-maintained over a longer horizon. It's a tough landscape. But the broader environment is more challenging today, placing a premium on stable revenue streams to sustain high-quality development, Christ noted.

The broader economic environment is more challenging today than it was a few years ago, and we feel that too as a software vendor. To continue meeting our own standards and our responsibility to business customers who rely on high-quality software, we are placing greater emphasis on predictability in development and support. A subscription model gives us that predictability in a way one-time purchases do not.

The company defends its practice. They don't host older versions indefinitely, citing technical and security concerns that they argue pose a risk to customers, especially within complex business environments where vulnerabilities in older builds can be exploited.

The impact on the user experience

They feel a loss of control. It's a bitter pill. A recent Reddit discussion highlighted one user's frustration after learning their perpetual license support would terminate in September, leaving them without the agency they once had over a tool they previously owned outright. But the company urges all perpetual license holders to back up installation files and keys before their maintenance period ends so they don't get caught off guard.

Key realities for license holders

• Personal licenses still exist and include 12 months of updates and support.
• Backup installation files and license keys are not provided after the support period lapses.
• Business users must move to subscription models to continue receiving updates.
• Refund requests are generally declined because the core promise of indefinite usage for the version purchased is still being met.

Alternatives and the road ahead

Is a subscription model right for a disk space analyzer? That's a fair question. Free alternatives like WinDirStat exist, but they often lack specific features found in the paid version of TreeSize, and the premium version includes advanced functionality that remains gated behind the subscription wall.

Duplicate file searches, redundant data cleanup, and disk usage comparisons over time are still only available to users on active plans. It's a deliberate limitation. But because the free version isn't designed for business use, professional teams must either accept the new model or start looking for alternatives.

The organization insists it still backs the perpetual license for personal use. But it's a strange kind of support. There are currently no plans to discontinue the sale of these specific personal licenses, and this move demonstrates a clear industry trend where the pursuit of recurring revenue is reshaping the relationship between developers and their long-standing customer base.